本(ben)發明涉及光(guang)模塊技術領域(yu),尤其涉及一種光(guang)模塊及其設計(ji)方法。
背景技術:
目前,隨(sui)著(zhu)光通訊技術的(de)發展(zhan),單通道光纖速(su)率由之(zhi)(zhi)前的(de)1G或(huo)10G,提高(gao)到了現在的(de)25G或(huo)28G,與(yu)之(zhi)(zhi)對應,為了適應高(gao)速(su)發展(zhan)的(de)需求,光模(mo)塊(kuai)(即光電(dian)(dian)轉換器)的(de)PCB(Printed Circuit Board,印制電(dian)(dian)路板,簡稱電(dian)(dian)路板)板的(de)電(dian)(dian)路也隨(sui)之(zhi)(zhi)設計為高(gao)速(su)電(dian)(dian)路。
通(tong)常,光模塊的(de)(de)(de)PCB板包括多(duo)層(ceng)(ceng)(ceng),分(fen)別為(wei)(wei)(wei)金(jin)屬(shu)層(ceng)(ceng)(ceng)和(he)設置(zhi)于相鄰的(de)(de)(de)金(jin)屬(shu)層(ceng)(ceng)(ceng)中的(de)(de)(de)介質層(ceng)(ceng)(ceng),頂(ding)(ding)(ding)層(ceng)(ceng)(ceng)金(jin)屬(shu)層(ceng)(ceng)(ceng)上(shang)通(tong)常布置(zhi)有元(yuan)器件,例如驅(qu)動芯片(pian)(pian),以及與所(suo)述(shu)驅(qu)動芯片(pian)(pian)相連接的(de)(de)(de)光芯片(pian)(pian)。在光模塊的(de)(de)(de)PCB板的(de)(de)(de)電路(lu)設計中,由于電路(lu)為(wei)(wei)(wei)高(gao)(gao)速(su)(su)電路(lu),通(tong)常在布置(zhi)有元(yuan)器件的(de)(de)(de)頂(ding)(ding)(ding)層(ceng)(ceng)(ceng)金(jin)屬(shu)層(ceng)(ceng)(ceng)的(de)(de)(de)下方設置(zhi)一(yi)層(ceng)(ceng)(ceng)參(can)考回流層(ceng)(ceng)(ceng),以適應信號的(de)(de)(de)高(gao)(gao)速(su)(su)傳輸需求。在具體設置(zhi)時,通(tong)常將頂(ding)(ding)(ding)層(ceng)(ceng)(ceng)金(jin)屬(shu)層(ceng)(ceng)(ceng)的(de)(de)(de)相鄰下一(yi)層(ceng)(ceng)(ceng)金(jin)屬(shu)層(ceng)(ceng)(ceng)作為(wei)(wei)(wei)頂(ding)(ding)(ding)層(ceng)(ceng)(ceng)金(jin)屬(shu)層(ceng)(ceng)(ceng)的(de)(de)(de)參(can)考回流層(ceng)(ceng)(ceng)。
光(guang)模塊(kuai)的PCB板的高(gao)(gao)速(su)電路在(zai)正常(chang)(chang)工(gong)作時,驅動(dong)(dong)芯(xin)片(pian)(pian)與(yu)光(guang)芯(xin)片(pian)(pian)的直流偏置電壓通(tong)常(chang)(chang)不同,導(dao)(dao)致光(guang)模塊(kuai)無法正常(chang)(chang)工(gong)作,基于(yu)(yu)此,在(zai)頂層(ceng)金屬(shu)層(ceng)上布置元(yuan)件器時,通(tong)常(chang)(chang)在(zai)驅動(dong)(dong)芯(xin)片(pian)(pian)和光(guang)芯(xin)片(pian)(pian)之間的高(gao)(gao)速(su)信(xin)號(hao)(hao)(hao)傳輸路徑(jing)(jing)上設置一個(ge)耦合電容(rong),用于(yu)(yu)耦合兩端的傳輸信(xin)號(hao)(hao)(hao),從而保證光(guang)模塊(kuai)的正常(chang)(chang)工(gong)作。具體設置時,通(tong)常(chang)(chang)采用兩個(ge)焊(han)盤將耦合電容(rong)焊(han)接(jie)于(yu)(yu)連接(jie)驅動(dong)(dong)芯(xin)片(pian)(pian)和光(guang)芯(xin)片(pian)(pian)的高(gao)(gao)速(su)信(xin)號(hao)(hao)(hao)線(xian)的傳輸路徑(jing)(jing)上,但是由于(yu)(yu)焊(han)盤的寬度(du)大于(yu)(yu)高(gao)(gao)速(su)信(xin)號(hao)(hao)(hao)線(xian)的寬度(du),此種設置又會導(dao)(dao)致高(gao)(gao)速(su)信(xin)號(hao)(hao)(hao)傳輸路徑(jing)(jing)上的阻抗在(zai)焊(han)盤處(chu)發(fa)生變化,從而影(ying)響信(xin)號(hao)(hao)(hao)的傳輸質量(liang)。
所以,現有的(de)光模塊,其(qi)PCB板的(de)高(gao)速(su)信(xin)號線上(shang)連接耦合電容后,高(gao)速(su)信(xin)號傳輸路徑上(shang)的(de)阻抗在焊盤(pan)處(chu)會發生變化,使用效果較差。
技術實現要素:
本(ben)發明實施(shi)例的(de)(de)目的(de)(de)在于提供一種(zhong)光模塊及其設計方(fang)法,以解決現有(you)的(de)(de)光模塊,其PCB板的(de)(de)高(gao)速信(xin)號線上連接耦合電容后(hou),高(gao)速信(xin)號傳(chuan)輸路徑上的(de)(de)阻抗在焊(han)盤處會發生變化,使用效果較差(cha)的(de)(de)問題。
為了解決(jue)上述技(ji)術(shu)問(wen)題,本發明實施例(li)公開了如下技(ji)術(shu)方案:
第一(yi)方(fang)面,本發明實施例提供了(le)一(yi)種(zhong)光(guang)模塊,該光(guang)模塊包括:電(dian)(dian)路(lu)(lu)板、高(gao)速信(xin)號(hao)線、驅動芯片(pian)(pian)及(ji)光(guang)芯片(pian)(pian);所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)電(dian)(dian)路(lu)(lu)板包括頂板和位(wei)于所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)頂板下方(fang)的(de)(de)金屬(shu)(shu)層,所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)金屬(shu)(shu)層為所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)頂板的(de)(de)參考回流層;所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)驅動芯片(pian)(pian)、所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)高(gao)速信(xin)號(hao)線以及(ji)所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)光(guang)芯片(pian)(pian)均(jun)布(bu)(bu)置(zhi)于所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)頂板上,所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)驅動芯片(pian)(pian)和所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)光(guang)芯片(pian)(pian)通過所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)高(gao)速信(xin)號(hao)線相(xiang)連接(jie)(jie);所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)高(gao)速信(xin)號(hao)線的(de)(de)傳輸路(lu)(lu)徑上布(bu)(bu)置(zhi)有兩(liang)個(ge)(ge)焊(han)盤(pan);所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)兩(liang)個(ge)(ge)焊(han)盤(pan)之間(jian)具有絕緣(yuan)間(jian)隙(xi),所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)兩(liang)個(ge)(ge)焊(han)盤(pan)通過橋接(jie)(jie)的(de)(de)耦合電(dian)(dian)容電(dian)(dian)連接(jie)(jie);所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)兩(liang)個(ge)(ge)焊(han)盤(pan)在所(suo)(suo)(suo)述(shu)(shu)(shu)(shu)金屬(shu)(shu)層中的(de)(de)投影區(qu)域(yu)設置(zhi)有絕緣(yuan)區(qu)域(yu)。
第二方(fang)面,本發明(ming)實(shi)施例提(ti)供了一種光模(mo)塊的(de)設(she)計(ji)方(fang)法(fa),該設(she)計(ji)方(fang)法(fa)包括(kuo):設(she)置(zhi)包括(kuo)頂(ding)板(ban)(ban)和頂(ding)板(ban)(ban)下方(fang)的(de)金屬(shu)層(ceng)的(de)電路(lu)板(ban)(ban),并且將(jiang)所(suo)(suo)(suo)述(shu)(shu)金屬(shu)層(ceng)設(she)置(zhi)為所(suo)(suo)(suo)述(shu)(shu)頂(ding)板(ban)(ban)的(de)參考回(hui)流層(ceng);在所(suo)(suo)(suo)述(shu)(shu)頂(ding)板(ban)(ban)上(shang)布(bu)置(zhi)驅動芯(xin)(xin)片(pian)(pian)、高(gao)速(su)信(xin)號(hao)線和光芯(xin)(xin)片(pian)(pian),并且將(jiang)所(suo)(suo)(suo)述(shu)(shu)高(gao)速(su)信(xin)號(hao)線布(bu)置(zhi)于所(suo)(suo)(suo)述(shu)(shu)驅動芯(xin)(xin)片(pian)(pian)和所(suo)(suo)(suo)述(shu)(shu)光芯(xin)(xin)片(pian)(pian)之(zhi)間(jian),用于連接(jie)所(suo)(suo)(suo)述(shu)(shu)驅動芯(xin)(xin)片(pian)(pian)和所(suo)(suo)(suo)述(shu)(shu)光芯(xin)(xin)片(pian)(pian);在所(suo)(suo)(suo)述(shu)(shu)高(gao)速(su)信(xin)號(hao)線的(de)傳(chuan)輸路(lu)徑(jing)上(shang)布(bu)置(zhi)兩個(ge)焊(han)盤(pan),所(suo)(suo)(suo)述(shu)(shu)兩個(ge)焊(han)盤(pan)之(zhi)間(jian)設(she)置(zhi)絕(jue)(jue)緣間(jian)隙;在所(suo)(suo)(suo)述(shu)(shu)兩個(ge)焊(han)盤(pan)的(de)頂(ding)部橋接(jie)耦(ou)合電容,用于連接(jie)所(suo)(suo)(suo)述(shu)(shu)兩個(ge)焊(han)盤(pan);在所(suo)(suo)(suo)述(shu)(shu)兩個(ge)焊(han)盤(pan)在所(suo)(suo)(suo)述(shu)(shu)金屬(shu)層(ceng)中(zhong)的(de)投影區(qu)域設(she)置(zhi)絕(jue)(jue)緣區(qu)域。
本發明(ming)的(de)(de)實施例提供(gong)的(de)(de)技術方案可以包括(kuo)以下有(you)(you)(you)益效(xiao)果(guo):本發明(ming)提供(gong)了(le)一種光(guang)(guang)模(mo)塊及其(qi)設(she)計(ji)方法,該光(guang)(guang)模(mo)塊包括(kuo)電(dian)路(lu)(lu)板,電(dian)路(lu)(lu)板包括(kuo)頂(ding)板,頂(ding)板下方設(she)置(zhi)有(you)(you)(you)作為頂(ding)板的(de)(de)參(can)考回流(liu)層(ceng)的(de)(de)金(jin)屬層(ceng),頂(ding)板上布置(zhi)有(you)(you)(you)驅(qu)(qu)動芯(xin)(xin)(xin)片(pian)和(he)光(guang)(guang)芯(xin)(xin)(xin)片(pian),驅(qu)(qu)動芯(xin)(xin)(xin)片(pian)和(he)光(guang)(guang)芯(xin)(xin)(xin)片(pian)通過高(gao)速信(xin)號線相連接(jie),高(gao)速信(xin)號線的(de)(de)傳(chuan)輸路(lu)(lu)徑(jing)(jing)上布置(zhi)有(you)(you)(you)兩(liang)個焊盤(pan),兩(liang)個焊盤(pan)的(de)(de)頂(ding)部橋接(jie)有(you)(you)(you)耦合電(dian)容,兩(liang)個焊盤(pan)在(zai)金(jin)屬層(ceng)中的(de)(de)投影區(qu)域設(she)置(zhi)有(you)(you)(you)絕(jue)緣區(qu)域,保證了(le)高(gao)速信(xin)號傳(chuan)輸路(lu)(lu)徑(jing)(jing)上阻抗(kang)的(de)(de)連續性,阻抗(kang)不會在(zai)焊盤(pan)處(chu)(chu)發生突(tu)變,從(cong)而(er)保證了(le)光(guang)(guang)模(mo)塊較好的(de)(de)使用效(xiao)果(guo);此(ci)外(wai),該光(guang)(guang)模(mo)塊中,在(zai)金(jin)屬層(ceng)中設(she)置(zhi)有(you)(you)(you)穿過絕(jue)緣區(qu)域的(de)(de)導線,導線連通絕(jue)緣區(qu)域外(wai)圍的(de)(de)金(jin)屬層(ceng),保證了(le)焊盤(pan)處(chu)(chu)高(gao)速信(xin)號的(de)(de)回流(liu)路(lu)(lu)徑(jing)(jing)與其(qi)上方的(de)(de)信(xin)號路(lu)(lu)徑(jing)(jing)的(de)(de)對應,極(ji)大地減小了(le)焊盤(pan)處(chu)(chu)的(de)(de)電(dian)磁(ci)輻射,適用性更好。
本發明實施例(li)應當理解(jie)的(de)(de)是(shi),以上的(de)(de)一(yi)般描述和后(hou)文的(de)(de)細節(jie)描述僅是(shi)示例(li)性和解(jie)釋性的(de)(de),并(bing)不能限制(zhi)本公(gong)開(kai)。
附圖說明
此處的附圖被并入說(shuo)(shuo)明(ming)書中(zhong)并構(gou)成本(ben)說(shuo)(shuo)明(ming)書的一部分,示出(chu)了符(fu)合本(ben)發明(ming)的實施例,并與說(shuo)(shuo)明(ming)書一起(qi)用(yong)于(yu)解釋本(ben)發明(ming)的原理。
為了(le)更清楚地(di)說明(ming)本發明(ming)實施例或(huo)現有(you)技術(shu)(shu)中的(de)技術(shu)(shu)方案,下(xia)面將對實施例或(huo)現有(you)技術(shu)(shu)描(miao)述(shu)中所(suo)需要(yao)使用(yong)的(de)附圖作簡單地(di)介紹,顯而易(yi)見地(di),對于本領域普通技術(shu)(shu)人員(yuan)而言,在不付出創造(zao)性勞動性的(de)前(qian)提下(xia),還可(ke)以根據這些(xie)附圖獲(huo)得其(qi)他的(de)附圖。
圖1為本發明實施(shi)例提(ti)供的一種光模塊的結構(gou)示意圖;
圖2為圖1中焊(han)盤處(chu)的局部放大圖;
圖3為圖2的俯視圖;
圖4為本發明實施(shi)例(li)提供(gong)的另一(yi)種(zhong)光模塊(kuai)的局部結構示意圖;
圖5為(wei)圖4中絕緣區(qu)域處的局部結構示意圖;
圖6為本發明實施例提(ti)供的一種(zhong)光模塊的設(she)計方法(fa)的流程(cheng)示意圖。
具體實施方式
為了(le)使本技術(shu)(shu)(shu)領域(yu)的(de)(de)(de)人(ren)(ren)員更好(hao)地理解(jie)本發(fa)明(ming)中(zhong)(zhong)的(de)(de)(de)技術(shu)(shu)(shu)方案,下(xia)面(mian)將結(jie)合本發(fa)明(ming)實施例中(zhong)(zhong)的(de)(de)(de)附圖,對本發(fa)明(ming)實施例中(zhong)(zhong)的(de)(de)(de)技術(shu)(shu)(shu)方案進行清楚、完整地描述,顯然(ran),所描述的(de)(de)(de)實施例僅(jin)僅(jin)是本發(fa)明(ming)一部分實施例,而(er)不是全部的(de)(de)(de)實施例。基于(yu)本發(fa)明(ming)中(zhong)(zhong)的(de)(de)(de)實施例,本領域(yu)普通技術(shu)(shu)(shu)人(ren)(ren)員在沒有(you)做出創造性勞(lao)動前提下(xia)所獲得的(de)(de)(de)所有(you)其(qi)他實施例,都應(ying)當(dang)屬于(yu)本發(fa)明(ming)保護的(de)(de)(de)范(fan)圍。
本發明(ming)提供了一種光(guang)(guang)模塊及其設計(ji)方(fang)法,該(gai)光(guang)(guang)模塊的(de)PCB板(ban)在參考回流層中,與(yu)其上方(fang)焊(han)盤對應(ying)的(de)區域(yu)(yu),設置(zhi)有絕緣(yuan)區域(yu)(yu),保證了高(gao)速信號的(de)傳輸路(lu)徑(jing)上,阻抗的(de)連續性,焊(han)盤處的(de)阻抗不會發生突變;此外(wai),該(gai)光(guang)(guang)模塊的(de)PCB板(ban)的(de)絕緣(yuan)區域(yu)(yu)中設置(zhi)有保證高(gao)速信號的(de)回流路(lu)徑(jing)與(yu)其上方(fang)的(de)信號路(lu)徑(jing)相對應(ying)的(de)導線,極(ji)大地(di)減(jian)小(xiao)了該(gai)光(guang)(guang)模塊的(de)電(dian)路(lu)板(ban)中焊(han)盤處的(de)電(dian)磁輻射(she)。
下(xia)面(mian)結合附圖,詳細介紹(shao)本發明的具(ju)體實(shi)施例。
如(ru)圖(tu)(tu)(tu)1和圖(tu)(tu)(tu)2所(suo)示(shi)(shi),圖(tu)(tu)(tu)1示(shi)(shi)出的(de)是本發明實施例提供的(de)一種光(guang)模塊的(de)結(jie)構示(shi)(shi)意圖(tu)(tu)(tu),圖(tu)(tu)(tu)2示(shi)(shi)出的(de)是圖(tu)(tu)(tu)1中焊盤(pan)處的(de)局部放大圖(tu)(tu)(tu)。
該(gai)光模塊(kuai)包括:電路板(ban)(ban)(ban)1、高(gao)速信(xin)(xin)號線(xian)(xian)(xian)2、驅動(dong)芯(xin)(xin)(xin)片(pian)(pian)3和光芯(xin)(xin)(xin)片(pian)(pian);所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)電路板(ban)(ban)(ban)1包括頂(ding)板(ban)(ban)(ban)4和位(wei)于(yu)所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)頂(ding)板(ban)(ban)(ban)4下方(fang)的(de)(de)金(jin)屬(shu)層5,所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)金(jin)屬(shu)層5為所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)頂(ding)板(ban)(ban)(ban)4的(de)(de)參考回流層;所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)驅動(dong)芯(xin)(xin)(xin)片(pian)(pian)3、所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)高(gao)速信(xin)(xin)號線(xian)(xian)(xian)2以及所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)光芯(xin)(xin)(xin)片(pian)(pian)均布(bu)置(zhi)于(yu)所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)頂(ding)板(ban)(ban)(ban)4上,所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)驅動(dong)芯(xin)(xin)(xin)片(pian)(pian)3和所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)光芯(xin)(xin)(xin)片(pian)(pian)通過高(gao)速信(xin)(xin)號線(xian)(xian)(xian)2相連接(jie);所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)高(gao)速信(xin)(xin)號線(xian)(xian)(xian)2的(de)(de)傳輸路徑(jing)上布(bu)置(zhi)有(you)(you)(you)兩個(ge)(ge)(ge)焊(han)盤6;所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)兩個(ge)(ge)(ge)焊(han)盤6之(zhi)間具(ju)有(you)(you)(you)絕(jue)緣間隙,所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)兩個(ge)(ge)(ge)焊(han)盤6通過橋(qiao)接(jie)的(de)(de)耦合(he)電容(rong)(rong)7電連接(jie),即(ji)所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)兩個(ge)(ge)(ge)焊(han)盤6的(de)(de)頂(ding)部橋(qiao)接(jie)有(you)(you)(you)耦合(he)電容(rong)(rong)7;所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)兩個(ge)(ge)(ge)焊(han)盤6在所(suo)(suo)述(shu)(shu)(shu)(shu)(shu)金(jin)屬(shu)層5中的(de)(de)投影區(qu)域設置(zhi)有(you)(you)(you)絕(jue)緣區(qu)域8。
在(zai)(zai)具體設(she)計時(shi),光(guang)模(mo)塊的(de)PCB板(ban)(ban)(電路(lu)板(ban)(ban)1)通(tong)(tong)(tong)常包括多(duo)層(ceng)(ceng)(ceng)(ceng)(ceng),且通(tong)(tong)(tong)常設(she)置(zhi)為金(jin)(jin)屬層(ceng)(ceng)(ceng)(ceng)(ceng)與介(jie)質(zhi)層(ceng)(ceng)(ceng)(ceng)(ceng)相間的(de)模(mo)式(shi),即通(tong)(tong)(tong)常在(zai)(zai)頂(ding)層(ceng)(ceng)(ceng)(ceng)(ceng)金(jin)(jin)屬層(ceng)(ceng)(ceng)(ceng)(ceng)的(de)下(xia)方(fang)布(bu)置(zhi)一層(ceng)(ceng)(ceng)(ceng)(ceng)介(jie)質(zhi)層(ceng)(ceng)(ceng)(ceng)(ceng),在(zai)(zai)該介(jie)質(zhi)層(ceng)(ceng)(ceng)(ceng)(ceng)的(de)下(xia)方(fang)再布(bu)置(zhi)一層(ceng)(ceng)(ceng)(ceng)(ceng)金(jin)(jin)屬層(ceng)(ceng)(ceng)(ceng)(ceng),依(yi)次布(bu)置(zhi),從(cong)而得到所需(xu)的(de)PCB板(ban)(ban)。本文中,將光(guang)模(mo)塊的(de)PCB板(ban)(ban)的(de)頂(ding)層(ceng)(ceng)(ceng)(ceng)(ceng)金(jin)(jin)屬層(ceng)(ceng)(ceng)(ceng)(ceng)定義(yi)為頂(ding)板(ban)(ban)4,將頂(ding)板(ban)(ban)4下(xia)方(fang)與該頂(ding)板(ban)(ban)4相鄰(lin)的(de)金(jin)(jin)屬層(ceng)(ceng)(ceng)(ceng)(ceng)5作為頂(ding)板(ban)(ban)4的(de)參考回流層(ceng)(ceng)(ceng)(ceng)(ceng)。
頂(ding)板4通常用(yong)(yong)于(yu)布(bu)置(zhi)(zhi)(zhi)元(yuan)器(qi)件,且(qie)在實際設置(zhi)(zhi)(zhi)時,頂(ding)板4上可以(yi)布(bu)置(zhi)(zhi)(zhi)多(duo)個(ge)元(yuan)器(qi)件,例如(ru)圖1中(zhong)(zhong),頂(ding)板4上布(bu)置(zhi)(zhi)(zhi)有一個(ge)用(yong)(yong)于(yu)實現濾波、驅動(dong)(dong)和(he)整(zheng)形等功能(neng)的驅動(dong)(dong)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)3,一個(ge)用(yong)(yong)于(yu)將(jiang)光(guang)(guang)(guang)(guang)模塊(kuai)與(yu)其(qi)它設備(例如(ru)計(ji)算機主機)建立連(lian)接的金手指9,一個(ge)光(guang)(guang)(guang)(guang)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian),光(guang)(guang)(guang)(guang)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)可以(yi)是用(yong)(yong)于(yu)將(jiang)其(qi)它設備(例如(ru)計(ji)算機主機)發(fa)送至(zhi)光(guang)(guang)(guang)(guang)模塊(kuai)的電信(xin)號(hao)(hao)轉(zhuan)換(huan)為(wei)光(guang)(guang)(guang)(guang)信(xin)號(hao)(hao),并將(jiang)轉(zhuan)換(huan)后(hou)獲得(de)的光(guang)(guang)(guang)(guang)信(xin)號(hao)(hao)發(fa)送至(zhi)光(guang)(guang)(guang)(guang)網絡的光(guang)(guang)(guang)(guang)發(fa)射芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)10,也可以(yi)是用(yong)(yong)于(yu)從光(guang)(guang)(guang)(guang)網絡中(zhong)(zhong)接收(shou)(shou)光(guang)(guang)(guang)(guang)信(xin)號(hao)(hao),并將(jiang)接收(shou)(shou)到的光(guang)(guang)(guang)(guang)信(xin)號(hao)(hao)轉(zhuan)換(huan)為(wei)電信(xin)號(hao)(hao)的光(guang)(guang)(guang)(guang)接收(shou)(shou)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)11,當然,頂(ding)板上也可以(yi)布(bu)置(zhi)(zhi)(zhi)兩個(ge)光(guang)(guang)(guang)(guang)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian),其(qi)中(zhong)(zhong)一個(ge)光(guang)(guang)(guang)(guang)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)為(wei)光(guang)(guang)(guang)(guang)發(fa)射芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)10,另一個(ge)光(guang)(guang)(guang)(guang)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)為(wei)光(guang)(guang)(guang)(guang)接收(shou)(shou)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)11,其(qi)中(zhong)(zhong),光(guang)(guang)(guang)(guang)接收(shou)(shou)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)11、光(guang)(guang)(guang)(guang)發(fa)射芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)10和(he)金手指9均(jun)通過高(gao)速(su)信(xin)號(hao)(hao)線(xian)2與(yu)驅動(dong)(dong)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)3相連(lian)接。
具體實(shi)施時,頂板4上的元器件(jian)之間(jian)通常采(cai)用差(cha)分線(xian)(xian)進行高(gao)速(su)信號(hao)(hao)傳(chuan)輸,而差(cha)分線(xian)(xian)均為成(cheng)對布置,因此(ci),頂板4上的元器件(jian)之間(jian)采(cai)用差(cha)分線(xian)(xian)進行高(gao)速(su)信號(hao)(hao)傳(chuan)輸時,高(gao)速(su)信號(hao)(hao)線(xian)(xian)2包括多(duo)根(gen)。光接(jie)(jie)收芯(xin)(xin)片(pian)(pian)(pian)11、光發(fa)射芯(xin)(xin)片(pian)(pian)(pian)10各(ge)自(zi)通過一對差(cha)分線(xian)(xian)與(yu)驅動芯(xin)(xin)片(pian)(pian)(pian)3相連接(jie)(jie),金(jin)手(shou)指(zhi)9通過兩對差(cha)分線(xian)(xian)與(yu)驅動芯(xin)(xin)片(pian)(pian)(pian)3相連接(jie)(jie),即光接(jie)(jie)收芯(xin)(xin)片(pian)(pian)(pian)11和光發(fa)射芯(xin)(xin)片(pian)(pian)(pian)10與(yu)驅動芯(xin)(xin)片(pian)(pian)(pian)3之間(jian)各(ge)自(zi)布置兩根(gen)高(gao)速(su)信號(hao)(hao)線(xian)(xian)2,金(jin)手(shou)指(zhi)9和驅動芯(xin)(xin)片(pian)(pian)(pian)3之間(jian)布置四根(gen)高(gao)速(su)信號(hao)(hao)線(xian)(xian)2。
光(guang)模(mo)塊(kuai)在正(zheng)常工作(zuo)時,頂板(ban)4上(shang)的(de)(de)(de)各個(ge)(ge)元(yuan)器件(jian)工作(zuo)的(de)(de)(de)直(zhi)流(liu)偏置電(dian)(dian)(dian)壓通(tong)(tong)常不(bu)同,為(wei)了避(bi)免(mian)(mian)燒(shao)毀(hui)元(yuan)器件(jian),通(tong)(tong)常不(bu)可(ke)以直(zhi)接(jie)(jie)連(lian)通(tong)(tong)兩個(ge)(ge)元(yuan)器件(jian),亦(yi)即不(bu)可(ke)以直(zhi)接(jie)(jie)采用高速(su)(su)(su)信(xin)號(hao)(hao)線(xian)(xian)2連(lian)通(tong)(tong)兩個(ge)(ge)元(yuan)器件(jian),需(xu)(xu)要(yao)在高速(su)(su)(su)信(xin)號(hao)(hao)線(xian)(xian)2上(shang)連(lian)接(jie)(jie)耦(ou)(ou)合電(dian)(dian)(dian)容7,通(tong)(tong)過(guo)耦(ou)(ou)合電(dian)(dian)(dian)容7耦(ou)(ou)合該耦(ou)(ou)合電(dian)(dian)(dian)容7兩端(duan)的(de)(de)(de)信(xin)號(hao)(hao),以實現兩個(ge)(ge)元(yuan)器件(jian)之間的(de)(de)(de)信(xin)號(hao)(hao)傳輸。當頂板(ban)4上(shang)用于連(lian)接(jie)(jie)元(yuan)器件(jian)的(de)(de)(de)高速(su)(su)(su)信(xin)號(hao)(hao)線(xian)(xian)2包(bao)括多(duo)根(gen)(gen)時,需(xu)(xu)要(yao)在每(mei)一根(gen)(gen)高速(su)(su)(su)信(xin)號(hao)(hao)線(xian)(xian)2上(shang)連(lian)接(jie)(jie)一個(ge)(ge)耦(ou)(ou)合電(dian)(dian)(dian)容7,具體設(she)置時,耦(ou)(ou)合電(dian)(dian)(dian)容7無法直(zhi)接(jie)(jie)布(bu)置于頂板(ban)4上(shang),需(xu)(xu)要(yao)通(tong)(tong)過(guo)焊(han)盤(pan)6將其焊(han)接(jie)(jie)于頂板(ban)4上(shang),因(yin)此,需(xu)(xu)要(yao)在每(mei)一根(gen)(gen)高速(su)(su)(su)信(xin)號(hao)(hao)線(xian)(xian)2的(de)(de)(de)傳輸路徑上(shang)布(bu)置兩個(ge)(ge)焊(han)盤(pan)6,為(wei)了避(bi)免(mian)(mian)將相(xiang)應(ying)的(de)(de)(de)兩個(ge)(ge)元(yuan)器件(jian)直(zhi)接(jie)(jie)連(lian)通(tong)(tong),導致元(yuan)器件(jian)燒(shao)毀(hui),兩個(ge)(ge)焊(han)盤(pan)6之間需(xu)(xu)要(yao)設(she)置絕(jue)緣(yuan)間隙,之后將耦(ou)(ou)合電(dian)(dian)(dian)容7焊(han)接(jie)(jie)于這(zhe)兩個(ge)(ge)焊(han)盤(pan)6的(de)(de)(de)頂部(bu)即可(ke)。
通常(chang),高(gao)速(su)信號(hao)由(you)一(yi)個元器(qi)件傳(chuan)(chuan)(chuan)輸(shu)(shu)至另一(yi)個元器(qi)件的(de)(de)(de)(de)(de)過(guo)程(cheng)中,該高(gao)速(su)信號(hao)的(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)輸(shu)(shu)路(lu)(lu)徑上(shang)存在(zai)一(yi)定(ding)的(de)(de)(de)(de)(de)阻(zu)抗(kang),阻(zu)抗(kang)的(de)(de)(de)(de)(de)大(da)(da)小(xiao)與(yu)(yu)該傳(chuan)(chuan)(chuan)輸(shu)(shu)路(lu)(lu)徑中單位長度上(shang)的(de)(de)(de)(de)(de)電(dian)容(rong)有(you)關(guan),在(zai)其它條件不變的(de)(de)(de)(de)(de)情(qing)(qing)況下(xia),該傳(chuan)(chuan)(chuan)輸(shu)(shu)路(lu)(lu)徑中單位長度上(shang)的(de)(de)(de)(de)(de)電(dian)容(rong)越大(da)(da),阻(zu)抗(kang)就(jiu)越小(xiao)。而傳(chuan)(chuan)(chuan)輸(shu)(shu)路(lu)(lu)徑中單位長度上(shang)的(de)(de)(de)(de)(de)電(dian)容(rong)的(de)(de)(de)(de)(de)大(da)(da)小(xiao)與(yu)(yu)該電(dian)容(rong)的(de)(de)(de)(de)(de)兩個極板的(de)(de)(de)(de)(de)正(zheng)對(dui)(dui)面積有(you)關(guan),即與(yu)(yu)頂(ding)板4中用于傳(chuan)(chuan)(chuan)輸(shu)(shu)該高(gao)速(su)信號(hao)的(de)(de)(de)(de)(de)導(dao)(dao)體和參(can)考(kao)回(hui)(hui)流(liu)(liu)層中的(de)(de)(de)(de)(de)導(dao)(dao)體的(de)(de)(de)(de)(de)正(zheng)對(dui)(dui)面積有(you)關(guan),在(zai)其它條件不變的(de)(de)(de)(de)(de)情(qing)(qing)況下(xia),頂(ding)板4中用于傳(chuan)(chuan)(chuan)輸(shu)(shu)該高(gao)速(su)信號(hao)的(de)(de)(de)(de)(de)導(dao)(dao)體與(yu)(yu)參(can)考(kao)回(hui)(hui)流(liu)(liu)層中的(de)(de)(de)(de)(de)導(dao)(dao)體的(de)(de)(de)(de)(de)正(zheng)對(dui)(dui)面積越大(da)(da),傳(chuan)(chuan)(chuan)輸(shu)(shu)路(lu)(lu)徑中單位長度上(shang)的(de)(de)(de)(de)(de)電(dian)容(rong)就(jiu)越大(da)(da)。由(you)此可知,在(zai)其它條件不變的(de)(de)(de)(de)(de)情(qing)(qing)況下(xia),頂(ding)板4中用于傳(chuan)(chuan)(chuan)輸(shu)(shu)高(gao)速(su)信號(hao)的(de)(de)(de)(de)(de)導(dao)(dao)體與(yu)(yu)參(can)考(kao)回(hui)(hui)流(liu)(liu)層中的(de)(de)(de)(de)(de)導(dao)(dao)體的(de)(de)(de)(de)(de)正(zheng)對(dui)(dui)面積越大(da)(da),高(gao)速(su)信號(hao)的(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)輸(shu)(shu)路(lu)(lu)徑上(shang)的(de)(de)(de)(de)(de)阻(zu)抗(kang)就(jiu)越小(xiao)。
結合上述論述可知,采用焊(han)(han)盤(pan)6在(zai)(zai)(zai)(zai)任(ren)意一根高(gao)速(su)(su)信(xin)號(hao)(hao)(hao)(hao)線(xian)2上連(lian)接耦(ou)合電(dian)容(rong)7后,由于焊(han)(han)盤(pan)6的(de)(de)(de)寬度(du)通(tong)常大(da)于高(gao)速(su)(su)信(xin)號(hao)(hao)(hao)(hao)線(xian)2的(de)(de)(de)寬度(du),導(dao)致焊(han)(han)盤(pan)6和(he)耦(ou)合電(dian)容(rong)7與(yu)金(jin)屬層(ceng)5(參考(kao)回(hui)流層(ceng))的(de)(de)(de)正對面積比(bi)高(gao)速(su)(su)信(xin)號(hao)(hao)(hao)(hao)線(xian)2與(yu)金(jin)屬層(ceng)5的(de)(de)(de)正對面積大(da),在(zai)(zai)(zai)(zai)其它條件沒有(you)發生(sheng)變(bian)化的(de)(de)(de)情況下,高(gao)速(su)(su)信(xin)號(hao)(hao)(hao)(hao)傳(chuan)輸(shu)路徑上焊(han)(han)盤(pan)6和(he)耦(ou)合電(dian)容(rong)7處的(de)(de)(de)電(dian)容(rong)比(bi)高(gao)速(su)(su)信(xin)號(hao)(hao)(hao)(hao)線(xian)2處的(de)(de)(de)電(dian)容(rong)大(da),導(dao)致焊(han)(han)盤(pan)6和(he)耦(ou)合電(dian)容(rong)7處的(de)(de)(de)阻抗(kang)比(bi)高(gao)速(su)(su)信(xin)號(hao)(hao)(hao)(hao)線(xian)2處的(de)(de)(de)阻抗(kang)小,亦(yi)即在(zai)(zai)(zai)(zai)高(gao)速(su)(su)信(xin)號(hao)(hao)(hao)(hao)的(de)(de)(de)傳(chuan)輸(shu)路徑上,阻抗(kang)在(zai)(zai)(zai)(zai)焊(han)(han)盤(pan)6和(he)耦(ou)合電(dian)容(rong)7的(de)(de)(de)位置發生(sheng)突(tu)變(bian),造成(cheng)高(gao)速(su)(su)信(xin)號(hao)(hao)(hao)(hao)在(zai)(zai)(zai)(zai)焊(han)(han)盤(pan)6處發生(sheng)反射,引(yin)起高(gao)速(su)(su)信(xin)號(hao)(hao)(hao)(hao)的(de)(de)(de)完整性(xing)問題(ti)。
為(wei)(wei)了解(jie)決上述(shu)高(gao)(gao)速(su)(su)(su)信(xin)號(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)完整(zheng)性(xing)問題(ti),本發明實(shi)施例(li)提(ti)供的(de)(de)(de)(de)(de)(de)(de)(de)(de)光模(mo)塊的(de)(de)(de)(de)(de)(de)(de)(de)(de)結構進行了如(ru)下(xia)(xia)設(she)置(zhi):對(dui)于每根(gen)高(gao)(gao)速(su)(su)(su)信(xin)號(hao)線(xian)2上設(she)置(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)兩個(ge)(ge)焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6,在(zai)這兩個(ge)(ge)焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6在(zai)金(jin)(jin)屬層(ceng)(ceng)5中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)投(tou)影區(qu)域(yu)中(zhong)(zhong)確定(ding)一個(ge)(ge)區(qu)域(yu),挖掉(diao)該(gai)區(qu)域(yu)內部(bu)(bu)包(bao)圍的(de)(de)(de)(de)(de)(de)(de)(de)(de)金(jin)(jin)屬層(ceng)(ceng),將該(gai)區(qu)域(yu)設(she)置(zhi)為(wei)(wei)一個(ge)(ge)絕(jue)緣(yuan)區(qu)域(yu)8,這樣(yang),焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6和(he)(he)(he)耦合電(dian)容(rong)7與(yu)(yu)金(jin)(jin)屬層(ceng)(ceng)5的(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)對(dui)面(mian)積(ji)(ji)即(ji)可減小,當(dang)該(gai)絕(jue)緣(yuan)區(qu)域(yu)8的(de)(de)(de)(de)(de)(de)(de)(de)(de)面(mian)積(ji)(ji)滿足下(xia)(xia)述(shu)條件時:兩個(ge)(ge)焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6和(he)(he)(he)耦合電(dian)容(rong)7的(de)(de)(de)(de)(de)(de)(de)(de)(de)面(mian)積(ji)(ji)之和(he)(he)(he)減去(qu)焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6和(he)(he)(he)耦合電(dian)容(rong)7重合部(bu)(bu)位的(de)(de)(de)(de)(de)(de)(de)(de)(de)面(mian)積(ji)(ji),得到的(de)(de)(de)(de)(de)(de)(de)(de)(de)差值(zhi)再減去(qu)目(mu)標(biao)長度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)高(gao)(gao)速(su)(su)(su)信(xin)號(hao)線(xian)2的(de)(de)(de)(de)(de)(de)(de)(de)(de)面(mian)積(ji)(ji),最后生(sheng)成(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)差值(zhi)為(wei)(wei)絕(jue)緣(yuan)區(qu)域(yu)8的(de)(de)(de)(de)(de)(de)(de)(de)(de)面(mian)積(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)值(zhi),其中(zhong)(zhong),目(mu)標(biao)長度(du)為(wei)(wei)沿著高(gao)(gao)速(su)(su)(su)信(xin)號(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)傳(chuan)(chuan)輸(shu)(shu)方向(xiang),從(cong)其中(zhong)(zhong)一個(ge)(ge)焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6的(de)(de)(de)(de)(de)(de)(de)(de)(de)起始至(zhi)另一個(ge)(ge)焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6的(de)(de)(de)(de)(de)(de)(de)(de)(de)結尾處(chu)(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)長度(du),此種情況下(xia)(xia),焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6和(he)(he)(he)耦合電(dian)容(rong)7與(yu)(yu)金(jin)(jin)屬層(ceng)(ceng)5的(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)對(dui)面(mian)積(ji)(ji)可調整(zheng)至(zhi)與(yu)(yu)高(gao)(gao)速(su)(su)(su)信(xin)號(hao)線(xian)2與(yu)(yu)金(jin)(jin)屬層(ceng)(ceng)5的(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)對(dui)面(mian)積(ji)(ji)相(xiang)同(tong)(tong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)狀(zhuang)(zhuang)態,使(shi)(shi)得高(gao)(gao)速(su)(su)(su)信(xin)號(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)傳(chuan)(chuan)輸(shu)(shu)路徑上焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6和(he)(he)(he)耦合電(dian)容(rong)7處(chu)(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)容(rong)與(yu)(yu)高(gao)(gao)速(su)(su)(su)信(xin)號(hao)線(xian)2處(chu)(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)容(rong)最大(da)程(cheng)度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)趨于相(xiang)等,從(cong)而使(shi)(shi)得高(gao)(gao)速(su)(su)(su)信(xin)號(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)傳(chuan)(chuan)輸(shu)(shu)路徑上焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6和(he)(he)(he)耦合電(dian)容(rong)7處(chu)(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)阻(zu)抗(kang)與(yu)(yu)高(gao)(gao)速(su)(su)(su)信(xin)號(hao)線(xian)2處(chu)(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)阻(zu)抗(kang)也最大(da)程(cheng)度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)趨于相(xiang)同(tong)(tong),阻(zu)抗(kang)不(bu)會在(zai)焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6處(chu)(chu)發生(sheng)突(tu)變,也就不(bu)會出現高(gao)(gao)速(su)(su)(su)信(xin)號(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)完整(zheng)信(xin)問題(ti)。在(zai)具體實(shi)施過程(cheng)中(zhong)(zhong),絕(jue)緣(yuan)區(qu)域(yu)8可以(yi)設(she)置(zhi)為(wei)(wei)任(ren)意形(xing)狀(zhuang)(zhuang),例(li)如(ru):正(zheng)方形(xing)、矩(ju)形(xing)、多邊形(xing)等,為(wei)(wei)了使(shi)(shi)高(gao)(gao)速(su)(su)(su)信(xin)號(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)傳(chuan)(chuan)輸(shu)(shu)路徑上焊(han)(han)(han)盤(pan)(pan)(pan)(pan)6和(he)(he)(he)耦合電(dian)容(rong)7處(chu)(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)阻(zu)抗(kang)與(yu)(yu)高(gao)(gao)速(su)(su)(su)信(xin)號(hao)線(xian)2處(chu)(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)阻(zu)抗(kang)最大(da)程(cheng)度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)趨于相(xiang)同(tong)(tong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)狀(zhuang)(zhuang)態,通常將絕(jue)緣(yuan)區(qu)域(yu)8的(de)(de)(de)(de)(de)(de)(de)(de)(de)形(xing)狀(zhuang)(zhuang)設(she)置(zhi)為(wei)(wei)矩(ju)形(xing)。
由前述可知,頂(ding)板4上(shang)(shang)的(de)(de)(de)(de)(de)元(yuan)器件(jian)之(zhi)間(jian)(jian)(jian)通(tong)(tong)常采用差分(fen)(fen)線(xian)(xian)(xian)(xian)進行高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)的(de)(de)(de)(de)(de)傳輸,即兩(liang)(liang)個元(yuan)器件(jian)之(zhi)間(jian)(jian)(jian)的(de)(de)(de)(de)(de)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2通(tong)(tong)常成對(dui)布(bu)(bu)(bu)(bu)置(zhi)(zhi),例如,布(bu)(bu)(bu)(bu)置(zhi)(zhi)于(yu)(yu)頂(ding)板4上(shang)(shang)的(de)(de)(de)(de)(de)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3和(he)光(guang)(guang)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)(光(guang)(guang)發(fa)射(she)(she)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)10或光(guang)(guang)接收(shou)(shou)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)11)之(zhi)間(jian)(jian)(jian)通(tong)(tong)過一(yi)對(dui)差分(fen)(fen)線(xian)(xian)(xian)(xian)相(xiang)連接,即驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3和(he)光(guang)(guang)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)(光(guang)(guang)發(fa)射(she)(she)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)10或光(guang)(guang)接收(shou)(shou)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)11)之(zhi)間(jian)(jian)(jian)布(bu)(bu)(bu)(bu)置(zhi)(zhi)有(you)一(yi)對(dui)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2,布(bu)(bu)(bu)(bu)置(zhi)(zhi)于(yu)(yu)頂(ding)板4上(shang)(shang)的(de)(de)(de)(de)(de)金(jin)手指(zhi)9和(he)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3之(zhi)間(jian)(jian)(jian)通(tong)(tong)過兩(liang)(liang)對(dui)差分(fen)(fen)線(xian)(xian)(xian)(xian)相(xiang)連接,即金(jin)手指(zhi)9和(he)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3之(zhi)間(jian)(jian)(jian)布(bu)(bu)(bu)(bu)置(zhi)(zhi)有(you)兩(liang)(liang)對(dui)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2,每(mei)對(dui)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2包(bao)括兩(liang)(liang)根(gen)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2。這(zhe)樣,在(zai)(zai)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3和(he)光(guang)(guang)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)(光(guang)(guang)發(fa)射(she)(she)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)10或光(guang)(guang)接收(shou)(shou)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)11)之(zhi)間(jian)(jian)(jian)以(yi)(yi)及在(zai)(zai)金(jin)手指(zhi)9和(he)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3之(zhi)間(jian)(jian)(jian)設(she)置(zhi)(zhi)耦(ou)(ou)(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)7時,針對(dui)每(mei)對(dui)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2設(she)置(zhi)(zhi)兩(liang)(liang)個耦(ou)(ou)(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)7,每(mei)根(gen)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2上(shang)(shang)設(she)置(zhi)(zhi)一(yi)個。具體設(she)置(zhi)(zhi)時,針對(dui)布(bu)(bu)(bu)(bu)置(zhi)(zhi)于(yu)(yu)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3和(he)光(guang)(guang)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)之(zhi)間(jian)(jian)(jian)的(de)(de)(de)(de)(de)一(yi)對(dui)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2,其(qi)上(shang)(shang)的(de)(de)(de)(de)(de)兩(liang)(liang)個耦(ou)(ou)(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)7可以(yi)(yi)設(she)置(zhi)(zhi)于(yu)(yu)距(ju)(ju)(ju)離(li)(li)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3(或光(guang)(guang)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian))相(xiang)同的(de)(de)(de)(de)(de)位置(zhi)(zhi),即這(zhe)對(dui)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2中(zhong)的(de)(de)(de)(de)(de)一(yi)根(gen)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2上(shang)(shang)設(she)置(zhi)(zhi)的(de)(de)(de)(de)(de)耦(ou)(ou)(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)7距(ju)(ju)(ju)離(li)(li)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3(或光(guang)(guang)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian))的(de)(de)(de)(de)(de)距(ju)(ju)(ju)離(li)(li)與(yu)另(ling)一(yi)根(gen)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2上(shang)(shang)設(she)置(zhi)(zhi)的(de)(de)(de)(de)(de)耦(ou)(ou)(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)7距(ju)(ju)(ju)離(li)(li)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3(或光(guang)(guang)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian))的(de)(de)(de)(de)(de)距(ju)(ju)(ju)離(li)(li)相(xiang)同;此外,還(huan)可以(yi)(yi)將這(zhe)對(dui)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2上(shang)(shang)的(de)(de)(de)(de)(de)耦(ou)(ou)(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)7設(she)置(zhi)(zhi)于(yu)(yu)距(ju)(ju)(ju)離(li)(li)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3(或光(guang)(guang)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian))不(bu)同的(de)(de)(de)(de)(de)位置(zhi)(zhi),即這(zhe)對(dui)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2中(zhong)的(de)(de)(de)(de)(de)一(yi)根(gen)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2上(shang)(shang)設(she)置(zhi)(zhi)的(de)(de)(de)(de)(de)耦(ou)(ou)(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)7距(ju)(ju)(ju)離(li)(li)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3(或光(guang)(guang)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian))的(de)(de)(de)(de)(de)距(ju)(ju)(ju)離(li)(li)與(yu)另(ling)一(yi)根(gen)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2上(shang)(shang)設(she)置(zhi)(zhi)的(de)(de)(de)(de)(de)耦(ou)(ou)(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)7距(ju)(ju)(ju)離(li)(li)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3(或光(guang)(guang)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian))的(de)(de)(de)(de)(de)距(ju)(ju)(ju)離(li)(li)不(bu)同。在(zai)(zai)金(jin)手指(zhi)9和(he)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3之(zhi)間(jian)(jian)(jian)的(de)(de)(de)(de)(de)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2上(shang)(shang)布(bu)(bu)(bu)(bu)置(zhi)(zhi)耦(ou)(ou)(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)7時可參考上(shang)(shang)述在(zai)(zai)驅(qu)(qu)(qu)動(dong)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)3和(he)光(guang)(guang)芯(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)(pian)之(zhi)間(jian)(jian)(jian)的(de)(de)(de)(de)(de)高(gao)速(su)(su)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)線(xian)(xian)(xian)(xian)2上(shang)(shang)布(bu)(bu)(bu)(bu)置(zhi)(zhi)耦(ou)(ou)(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)7的(de)(de)(de)(de)(de)方(fang)式,此處不(bu)再詳述。
與上(shang)(shang)述耦(ou)合電(dian)容(rong)7的(de)(de)(de)(de)設(she)(she)(she)(she)(she)(she)置(zhi)(zhi)(zhi)相應(ying),在(zai)(zai)金(jin)(jin)(jin)屬(shu)(shu)(shu)層(ceng)5中(zhong)(zhong)(zhong)設(she)(she)(she)(she)(she)(she)置(zhi)(zhi)(zhi)絕(jue)緣區(qu)(qu)(qu)(qu)(qu)域8時,針對(dui)(dui)(dui)(dui)每對(dui)(dui)(dui)(dui)高(gao)(gao)速信(xin)(xin)號(hao)線(xian)(xian)2,在(zai)(zai)其中(zhong)(zhong)(zhong)每根高(gao)(gao)速信(xin)(xin)號(hao)線(xian)(xian)2上(shang)(shang)布置(zhi)(zhi)(zhi)的(de)(de)(de)(de)兩(liang)個(ge)焊(han)(han)盤(pan)(pan)6在(zai)(zai)金(jin)(jin)(jin)屬(shu)(shu)(shu)層(ceng)5中(zhong)(zhong)(zhong)的(de)(de)(de)(de)投影區(qu)(qu)(qu)(qu)(qu)域中(zhong)(zhong)(zhong)均需設(she)(she)(she)(she)(she)(she)置(zhi)(zhi)(zhi)一個(ge)絕(jue)緣區(qu)(qu)(qu)(qu)(qu)域8。對(dui)(dui)(dui)(dui)于驅(qu)動(dong)芯(xin)片(pian)3和光芯(xin)片(pian)之間的(de)(de)(de)(de)一對(dui)(dui)(dui)(dui)高(gao)(gao)速信(xin)(xin)號(hao)線(xian)(xian)2,如果這對(dui)(dui)(dui)(dui)高(gao)(gao)速信(xin)(xin)號(hao)線(xian)(xian)2上(shang)(shang)的(de)(de)(de)(de)耦(ou)合電(dian)容(rong)7設(she)(she)(she)(she)(she)(she)置(zhi)(zhi)(zhi)于距離驅(qu)動(dong)芯(xin)片(pian)3(或(huo)光芯(xin)片(pian))不同(tong)的(de)(de)(de)(de)位置(zhi)(zhi)(zhi),則(ze)在(zai)(zai)每根高(gao)(gao)速信(xin)(xin)號(hao)線(xian)(xian)2上(shang)(shang)布置(zhi)(zhi)(zhi)的(de)(de)(de)(de)兩(liang)個(ge)焊(han)(han)盤(pan)(pan)6在(zai)(zai)金(jin)(jin)(jin)屬(shu)(shu)(shu)層(ceng)5中(zhong)(zhong)(zhong)的(de)(de)(de)(de)投影區(qu)(qu)(qu)(qu)(qu)域中(zhong)(zhong)(zhong)各(ge)自設(she)(she)(she)(she)(she)(she)置(zhi)(zhi)(zhi)一個(ge)絕(jue)緣區(qu)(qu)(qu)(qu)(qu)域8;如果這對(dui)(dui)(dui)(dui)高(gao)(gao)速信(xin)(xin)號(hao)線(xian)(xian)2上(shang)(shang)的(de)(de)(de)(de)耦(ou)合電(dian)容(rong)7設(she)(she)(she)(she)(she)(she)置(zhi)(zhi)(zhi)于距離驅(qu)動(dong)芯(xin)片(pian)3(或(huo)光芯(xin)片(pian))相同(tong)的(de)(de)(de)(de)位置(zhi)(zhi)(zhi),則(ze)可以(yi)在(zai)(zai)每根高(gao)(gao)速信(xin)(xin)號(hao)線(xian)(xian)2上(shang)(shang)布置(zhi)(zhi)(zhi)的(de)(de)(de)(de)兩(liang)個(ge)焊(han)(han)盤(pan)(pan)6在(zai)(zai)金(jin)(jin)(jin)屬(shu)(shu)(shu)層(ceng)5中(zhong)(zhong)(zhong)的(de)(de)(de)(de)投影區(qu)(qu)(qu)(qu)(qu)域中(zhong)(zhong)(zhong)各(ge)自設(she)(she)(she)(she)(she)(she)置(zhi)(zhi)(zhi)一個(ge)絕(jue)緣區(qu)(qu)(qu)(qu)(qu)域8,也可以(yi)在(zai)(zai)這對(dui)(dui)(dui)(dui)高(gao)(gao)速信(xin)(xin)號(hao)線(xian)(xian)2上(shang)(shang)布置(zhi)(zhi)(zhi)的(de)(de)(de)(de)四個(ge)焊(han)(han)盤(pan)(pan)6在(zai)(zai)金(jin)(jin)(jin)屬(shu)(shu)(shu)層(ceng)5中(zhong)(zhong)(zhong)的(de)(de)(de)(de)投影區(qu)(qu)(qu)(qu)(qu)域中(zhong)(zhong)(zhong)設(she)(she)(she)(she)(she)(she)置(zhi)(zhi)(zhi)兩(liang)個(ge)相互(hu)連通的(de)(de)(de)(de)絕(jue)緣區(qu)(qu)(qu)(qu)(qu)域8,即(ji)在(zai)(zai)這四個(ge)焊(han)(han)盤(pan)(pan)6在(zai)(zai)金(jin)(jin)(jin)屬(shu)(shu)(shu)層(ceng)5中(zhong)(zhong)(zhong)的(de)(de)(de)(de)投影區(qu)(qu)(qu)(qu)(qu)域中(zhong)(zhong)(zhong)只設(she)(she)(she)(she)(she)(she)置(zhi)(zhi)(zhi)一個(ge)絕(jue)緣區(qu)(qu)(qu)(qu)(qu)域8,并將該絕(jue)緣區(qu)(qu)(qu)(qu)(qu)域8的(de)(de)(de)(de)面積(ji)設(she)(she)(she)(she)(she)(she)置(zhi)(zhi)(zhi)為能夠使這對(dui)(dui)(dui)(dui)高(gao)(gao)速信(xin)(xin)號(hao)線(xian)(xian)2對(dui)(dui)(dui)(dui)應(ying)的(de)(de)(de)(de)高(gao)(gao)速信(xin)(xin)號(hao)的(de)(de)(de)(de)傳輸路(lu)徑上(shang)(shang)的(de)(de)(de)(de)阻抗不會發生突(tu)變的(de)(de)(de)(de)狀態,具體設(she)(she)(she)(she)(she)(she)置(zhi)(zhi)(zhi)可參考前述內容(rong),此處不再詳述。
參考圖3,圖3是圖2的(de)(de)(de)俯視圖,由圖3可知,在金(jin)(jin)屬(shu)層(ceng)(ceng)5(參考回流層(ceng)(ceng))中(zhong)設置絕緣(yuan)區(qu)域(yu)8后,在該(gai)絕緣(yuan)區(qu)域(yu)8的(de)(de)(de)位置,高(gao)(gao)速(su)(su)(su)信(xin)(xin)(xin)號(hao)的(de)(de)(de)回流路徑(jing)(jing)發生變(bian)化,未在金(jin)(jin)屬(shu)層(ceng)(ceng)5中(zhong)設置絕緣(yuan)區(qu)域(yu)8時(shi),高(gao)(gao)速(su)(su)(su)信(xin)(xin)(xin)號(hao)的(de)(de)(de)回流路徑(jing)(jing)位于其上(shang)方信(xin)(xin)(xin)號(hao)路徑(jing)(jing)A→B在金(jin)(jin)屬(shu)層(ceng)(ceng)5中(zhong)的(de)(de)(de)正投(tou)影位置,在金(jin)(jin)屬(shu)層(ceng)(ceng)5中(zhong)設置絕緣(yuan)區(qu)域(yu)8后,高(gao)(gao)速(su)(su)(su)信(xin)(xin)(xin)號(hao)的(de)(de)(de)回流路徑(jing)(jing)變(bian)為(wei)路徑(jing)(jing)C→D,高(gao)(gao)速(su)(su)(su)信(xin)(xin)(xin)號(hao)的(de)(de)(de)回流路徑(jing)(jing)發生變(bian)化后,頂板4上(shang)高(gao)(gao)速(su)(su)(su)信(xin)(xin)(xin)號(hao)的(de)(de)(de)信(xin)(xin)(xin)號(hao)路徑(jing)(jing)(電流路徑(jing)(jing))與金(jin)(jin)屬(shu)層(ceng)(ceng)5中(zhong)高(gao)(gao)速(su)(su)(su)信(xin)(xin)(xin)號(hao)的(de)(de)(de)回流路徑(jing)(jing)所形成的(de)(de)(de)交(jiao)變(bian)磁(ci)場的(de)(de)(de)電磁(ci)輻射范圍增大(da),增大(da)了對(dui)周圍其它電路的(de)(de)(de)電磁(ci)干擾。
為(wei)了減小上(shang)(shang)述(shu)電(dian)磁干擾,本發(fa)明(ming)(ming)實施(shi)例提(ti)供的(de)(de)(de)(de)(de)(de)光(guang)模塊(kuai)的(de)(de)(de)(de)(de)(de)結構(gou)(gou)進行了如下(xia)設(she)置(zhi):在(zai)每(mei)個(ge)絕(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)區(qu)域(yu)(yu)8中(zhong)(zhong),設(she)置(zhi)一根穿過該絕(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)區(qu)域(yu)(yu)8的(de)(de)(de)(de)(de)(de)導線(xian)(xian)(xian)(xian)(xian)(xian)12,導線(xian)(xian)(xian)(xian)(xian)(xian)12連通(tong)(tong)該絕(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)區(qu)域(yu)(yu)8外圍(wei)的(de)(de)(de)(de)(de)(de)金(jin)屬(shu)(shu)層(ceng)(ceng)5,其(qi)延伸方(fang)(fang)(fang)(fang)向與(yu)其(qi)上(shang)(shang)方(fang)(fang)(fang)(fang)頂板4中(zhong)(zhong)相應(ying)高速(su)(su)(su)(su)信(xin)號(hao)(hao)線(xian)(xian)(xian)(xian)(xian)(xian)2的(de)(de)(de)(de)(de)(de)延伸方(fang)(fang)(fang)(fang)向相同。參考圖(tu)(tu)4和(he)圖(tu)(tu)5,圖(tu)(tu)4示(shi)出的(de)(de)(de)(de)(de)(de)是本發(fa)明(ming)(ming)實施(shi)例提(ti)供的(de)(de)(de)(de)(de)(de)另一種(zhong)光(guang)模塊(kuai)的(de)(de)(de)(de)(de)(de)局部結構(gou)(gou)示(shi)意圖(tu)(tu),圖(tu)(tu)5示(shi)出的(de)(de)(de)(de)(de)(de)是圖(tu)(tu)4中(zhong)(zhong)絕(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)區(qu)域(yu)(yu)處的(de)(de)(de)(de)(de)(de)局部結構(gou)(gou)示(shi)意圖(tu)(tu)。圖(tu)(tu)4中(zhong)(zhong),導線(xian)(xian)(xian)(xian)(xian)(xian)12由(you)絕(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)區(qu)域(yu)(yu)8的(de)(de)(de)(de)(de)(de)E端(duan)(duan)穿過該絕(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)區(qu)域(yu)(yu)8,至該絕(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)區(qu)域(yu)(yu)8的(de)(de)(de)(de)(de)(de)F端(duan)(duan),其(qi)延伸方(fang)(fang)(fang)(fang)向與(yu)其(qi)上(shang)(shang)方(fang)(fang)(fang)(fang)頂板4中(zhong)(zhong)相應(ying)的(de)(de)(de)(de)(de)(de)高速(su)(su)(su)(su)信(xin)號(hao)(hao)線(xian)(xian)(xian)(xian)(xian)(xian)2的(de)(de)(de)(de)(de)(de)延伸方(fang)(fang)(fang)(fang)向相同,由(you)圖(tu)(tu)5可知,該導線(xian)(xian)(xian)(xian)(xian)(xian)12連通(tong)(tong)該絕(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)區(qu)域(yu)(yu)8的(de)(de)(de)(de)(de)(de)E端(duan)(duan)緊鄰(lin)的(de)(de)(de)(de)(de)(de)金(jin)屬(shu)(shu)層(ceng)(ceng)5和(he)絕(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)區(qu)域(yu)(yu)8的(de)(de)(de)(de)(de)(de)F端(duan)(duan)緊鄰(lin)的(de)(de)(de)(de)(de)(de)金(jin)屬(shu)(shu)層(ceng)(ceng)5,使得(de)高速(su)(su)(su)(su)信(xin)號(hao)(hao)的(de)(de)(de)(de)(de)(de)回(hui)流(liu)路(lu)徑變為(wei)沿著(zhu)該導線(xian)(xian)(xian)(xian)(xian)(xian)12從E端(duan)(duan)流(liu)向F端(duan)(duan)。具體設(she)置(zhi)時,為(wei)了最大程度的(de)(de)(de)(de)(de)(de)減小上(shang)(shang)述(shu)電(dian)磁干擾,通(tong)(tong)常將導線(xian)(xian)(xian)(xian)(xian)(xian)12設(she)置(zhi)于(yu)其(qi)上(shang)(shang)方(fang)(fang)(fang)(fang)相應(ying)高速(su)(su)(su)(su)信(xin)號(hao)(hao)線(xian)(xian)(xian)(xian)(xian)(xian)2的(de)(de)(de)(de)(de)(de)延長(chang)線(xian)(xian)(xian)(xian)(xian)(xian)在(zai)金(jin)屬(shu)(shu)層(ceng)(ceng)5中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)正投(tou)(tou)影(ying)位置(zhi),即導線(xian)(xian)(xian)(xian)(xian)(xian)12與(yu)其(qi)上(shang)(shang)方(fang)(fang)(fang)(fang)相應(ying)高速(su)(su)(su)(su)信(xin)號(hao)(hao)線(xian)(xian)(xian)(xian)(xian)(xian)2的(de)(de)(de)(de)(de)(de)延長(chang)線(xian)(xian)(xian)(xian)(xian)(xian)在(zai)金(jin)屬(shu)(shu)層(ceng)(ceng)5中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)正投(tou)(tou)影(ying)相重合。如果某一對高速(su)(su)(su)(su)信(xin)號(hao)(hao)線(xian)(xian)(xian)(xian)(xian)(xian)2的(de)(de)(de)(de)(de)(de)下(xia)方(fang)(fang)(fang)(fang)只(zhi)設(she)置(zhi)一個(ge)絕(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)區(qu)域(yu)(yu)8,則需要在(zai)這個(ge)絕(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)區(qu)域(yu)(yu)8中(zhong)(zhong)設(she)置(zhi)兩根導線(xian)(xian)(xian)(xian)(xian)(xian)12,即在(zai)每(mei)根高速(su)(su)(su)(su)信(xin)號(hao)(hao)線(xian)(xian)(xian)(xian)(xian)(xian)2的(de)(de)(de)(de)(de)(de)延長(chang)線(xian)(xian)(xian)(xian)(xian)(xian)在(zai)金(jin)屬(shu)(shu)層(ceng)(ceng)5中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)正投(tou)(tou)影(ying)位置(zhi)設(she)置(zhi)一根導線(xian)(xian)(xian)(xian)(xian)(xian)12。
在(zai)每個絕(jue)緣(yuan)區域8中設置導(dao)線(xian)12,可(ke)以采用如(ru)下方式實現(xian):在(zai)金屬(shu)層5中設置絕(jue)緣(yuan)區域8時,預留導(dao)線(xian)12所(suo)在(zai)位置的金屬(shu)層5,只挖(wa)掉導(dao)線(xian)12周圍(wei)的金屬(shu)層5即可(ke)。具體設置導(dao)線(xian)12時,在(zai)工(gong)藝允許范圍(wei)內,將(jiang)導(dao)線(xian)12的寬度設置為(wei)工(gong)藝可(ke)實現(xian)的最(zui)小值,例如(ru):將(jiang)導(dao)線(xian)12的寬度設置為(wei)4~8mil(密耳(er)),優選為(wei)4mil。
本發(fa)明實施例提(ti)供的(de)(de)(de)光(guang)模塊(kuai),通(tong)過在其電路(lu)(lu)板(ban)(ban)的(de)(de)(de)參考回流層(ceng)中(zhong),與(yu)其上方高速(su)(su)信號線相(xiang)對(dui)(dui)應的(de)(de)(de)區(qu)域(yu)設(she)置絕緣區(qu)域(yu),保證(zheng)了(le)高速(su)(su)信號的(de)(de)(de)傳(chuan)輸路(lu)(lu)徑上阻(zu)抗(kang)的(de)(de)(de)連(lian)續性,焊盤處的(de)(de)(de)阻(zu)抗(kang)不再發(fa)生突變;另外(wai),該光(guang)模塊(kuai)的(de)(de)(de)PCB板(ban)(ban)中(zhong),在每個絕緣區(qu)域(yu)中(zhong)設(she)置了(le)一根導線,連(lian)通(tong)了(le)絕緣區(qu)域(yu)外(wai)圍的(de)(de)(de)金屬層(ceng),保證(zheng)了(le)高速(su)(su)信號的(de)(de)(de)回流路(lu)(lu)徑與(yu)其上方的(de)(de)(de)信號路(lu)(lu)徑的(de)(de)(de)對(dui)(dui)應,極大地減小了(le)該光(guang)模塊(kuai)的(de)(de)(de)PCB板(ban)(ban)中(zhong)焊盤處的(de)(de)(de)電磁(ci)輻射,進而減小了(le)對(dui)(dui)周圍其它電路(lu)(lu)的(de)(de)(de)電磁(ci)干(gan)擾。
如(ru)圖6所示,圖6示出的是本發明(ming)實(shi)施例提(ti)供的一種光(guang)模塊的設計(ji)方法的流程示意圖,該設計(ji)方法包括:
步驟101、設置包括頂(ding)板(ban)和頂(ding)板(ban)下方的(de)金(jin)屬層的(de)電路(lu)板(ban),并(bing)且將(jiang)所(suo)述金(jin)屬層設置為所(suo)述頂(ding)板(ban)的(de)參考回流(liu)層。
具體實(shi)施(shi)時,可以將(jiang)光模塊(kuai)的(de)PCB板(ban)設(she)置(zhi)為(wei)多層,將(jiang)位于(yu)頂(ding)(ding)部的(de)金屬(shu)層設(she)置(zhi)為(wei)頂(ding)(ding)板(ban),頂(ding)(ding)板(ban)緊臨下方設(she)置(zhi)介質層,該(gai)介質層緊鄰(lin)下方設(she)置(zhi)金屬(shu)層,將(jiang)該(gai)金屬(shu)層作為(wei)頂(ding)(ding)板(ban)的(de)參考回流層。
步驟102、在所述(shu)(shu)頂板上布(bu)置驅(qu)動(dong)芯片(pian)(pian)、高速信號線(xian)和光芯片(pian)(pian),并(bing)且(qie)將所述(shu)(shu)高速信號線(xian)布(bu)置于(yu)所述(shu)(shu)驅(qu)動(dong)芯片(pian)(pian)和所述(shu)(shu)光芯片(pian)(pian)之間(jian),用于(yu)連接所述(shu)(shu)驅(qu)動(dong)芯片(pian)(pian)和所述(shu)(shu)光芯片(pian)(pian)。
步驟103、在(zai)所(suo)述高速信(xin)號線的傳輸路(lu)徑上布置兩個焊盤,所(suo)述兩個焊盤之間設置絕緣(yuan)間隙。
步(bu)驟104、在所(suo)述兩個(ge)焊盤(pan)的頂部橋接耦合電容,用于連接所(suo)述兩個(ge)焊盤(pan)。
步驟105、在所述兩(liang)個焊盤在所述金屬層中的投影(ying)區(qu)域設置絕緣區(qu)域。
進(jin)一步,絕緣區域的形(xing)(xing)狀可以隨(sui)意(yi)設置,通常將絕緣區域的形(xing)(xing)狀設置為矩形(xing)(xing)。
進一步,該設計方法還包(bao)括:在所述(shu)(shu)金(jin)(jin)屬(shu)層中布(bu)置穿過(guo)所述(shu)(shu)絕緣(yuan)區域的導線;所述(shu)(shu)導線連通所述(shu)(shu)絕緣(yuan)區域外圍的金(jin)(jin)屬(shu)層,其延(yan)伸方向與所述(shu)(shu)高速信(xin)號線的延(yan)伸方向相同。
進一步,導(dao)線(xian)與其上方頂板上的(de)相應高速(su)信號線(xian)的(de)延長(chang)線(xian)在所述金(jin)屬(shu)層中的(de)正投影相重合。具(ju)體(ti)設(she)置(zhi)導(dao)線(xian)時,在工藝(yi)允許范圍內,盡量將導(dao)線(xian)的(de)寬度(du)設(she)置(zhi)為工藝(yi)可(ke)實現(xian)的(de)最(zui)小值,例如,將導(dao)線(xian)的(de)寬度(du)設(she)置(zhi)為4~8mil(密耳(er)),優(you)選(xuan)為4mil。
具體(ti)實施(shi)時,本發(fa)明提供的(de)(de)(de)光模(mo)塊(kuai)的(de)(de)(de)設(she)計方(fang)法中(zhong),每(mei)一個步驟的(de)(de)(de)具體(ti)實現方(fang)式(shi),均可(ke)參考上(shang)述光模(mo)塊(kuai)的(de)(de)(de)實施(shi)例,此(ci)處(chu)不(bu)再詳(xiang)述。
采用(yong)本發明實(shi)施(shi)例(li)提供的(de)光模塊的(de)設(she)計(ji)方(fang)法(fa),能夠設(she)計(ji)出上述光模塊,即采用(yong)該設(she)計(ji)方(fang)法(fa)獲得的(de)光模塊,其電(dian)(dian)路板的(de)焊盤處(chu)的(de)阻抗不會發生突變,并且(qie)焊盤處(chu)的(de)電(dian)(dian)磁輻(fu)射也較小,適用(yong)性更佳。
本(ben)說(shuo)明書中的(de)(de)(de)(de)(de)各(ge)個(ge)實施例采用遞進的(de)(de)(de)(de)(de)方(fang)(fang)式(shi)描(miao)述,各(ge)個(ge)實施例之間相同(tong)相似的(de)(de)(de)(de)(de)部分互相參見即(ji)可。需要(yao)(yao)(yao)說(shuo)明的(de)(de)(de)(de)(de)是,在(zai)(zai)(zai)本(ben)文中,諸如“包(bao)(bao)括(kuo)(kuo)”、“包(bao)(bao)含”或(huo)(huo)(huo)者其任何(he)其他變體意在(zai)(zai)(zai)涵蓋非(fei)排他性的(de)(de)(de)(de)(de)包(bao)(bao)含,從而(er)使得包(bao)(bao)括(kuo)(kuo)一系列要(yao)(yao)(yao)素的(de)(de)(de)(de)(de)過(guo)程(cheng)、方(fang)(fang)法、物(wu)品(pin)或(huo)(huo)(huo)者設(she)(she)備(bei)不僅包(bao)(bao)括(kuo)(kuo)那些要(yao)(yao)(yao)素,而(er)且還包(bao)(bao)括(kuo)(kuo)沒有明確(que)列出的(de)(de)(de)(de)(de)其他要(yao)(yao)(yao)素,或(huo)(huo)(huo)者是還包(bao)(bao)括(kuo)(kuo)為這種(zhong)過(guo)程(cheng)、方(fang)(fang)法、物(wu)品(pin)或(huo)(huo)(huo)者設(she)(she)備(bei)所固有的(de)(de)(de)(de)(de)要(yao)(yao)(yao)素。在(zai)(zai)(zai)沒有更多限制的(de)(de)(de)(de)(de)情況下,由語句(ju)“包(bao)(bao)括(kuo)(kuo)一個(ge)……”限定的(de)(de)(de)(de)(de)要(yao)(yao)(yao)素,并不排除在(zai)(zai)(zai)包(bao)(bao)括(kuo)(kuo)要(yao)(yao)(yao)素的(de)(de)(de)(de)(de)過(guo)程(cheng)、方(fang)(fang)法、物(wu)品(pin)或(huo)(huo)(huo)者設(she)(she)備(bei)中還存在(zai)(zai)(zai)另外的(de)(de)(de)(de)(de)相同(tong)要(yao)(yao)(yao)素。
以上僅是本(ben)發明的(de)具體(ti)實施方式,應當指出,對于本(ben)技術(shu)(shu)領(ling)域(yu)的(de)普通技術(shu)(shu)人員來(lai)說,在不脫離(li)本(ben)發明原理的(de)前提下,還(huan)可(ke)以做出若(ruo)干改(gai)進(jin)和(he)潤飾,這些改(gai)進(jin)和(he)潤飾也應視(shi)為本(ben)發明的(de)保護范(fan)圍。