PCBA貼(tie)片加(jia)工(gong)的(de)工(gong)藝流(liu)程十分復(fu)雜，包括有(you)PCB板制(zhi)程、元器件(jian)采購與檢驗、SMT貼(tie)片組裝(zhuang)、DIP插件(jian)、PCBA測(ce)(ce)(ce)試等多道重要(yao)工(gong)序(xu)。其中(zhong)(zhong)PCBA測(ce)(ce)(ce)試是整個PCBA加(jia)工(gong)制(zhi)程中(zhong)(zhong)關鍵的(de)質量控制(zhi)環節，決定著(zhu)產品的(de)使用性能(neng)。PCBA測(ce)(ce)(ce)試主要(yao)包括：ICT測(ce)(ce)(ce)試、FCT測(ce)(ce)(ce)試、老化測(ce)(ce)(ce)試、疲(pi)勞測(ce)(ce)(ce)試、惡劣環境(jing)下測(ce)(ce)(ce)試這五種形(xing)式。ICT測(ce)(ce)(ce)試主要(yao)包含電(dian)(dian)路的(de)通斷(duan)、電(dian)(dian)壓和電(dian)(dian)流(liu)數值及波動曲線、振幅、噪音等。

雙面(mian)(mian)(mian)混裝：來料檢(jian)測+PCB的B面(mian)(mian)(mian)絲(si)印(yin)(yin)錫(xi)(xi)膏（紅膠(jiao)）+貼(tie)(tie)(tie)片(pian)+B面(mian)(mian)(mian)回(hui)流(liu)(liu)(固(gu)化(hua))+清洗+翻板(ban)+A面(mian)(mian)(mian)絲(si)印(yin)(yin)錫(xi)(xi)膏（紅膠(jiao)）+貼(tie)(tie)(tie)片(pian)+B面(mian)(mian)(mian)回(hui)流(liu)(liu)(固(gu)化(hua))或是(shi)(DIP+波峰)+清洗+檢(jian)測+返修，絲(si)印(yin)(yin)：其作用是(shi)將焊膏或貼(tie)(tie)(tie)片(pian)膠(jiao)漏(lou)印(yin)(yin)到(dao)(dao)PCB的焊盤上(shang)，為元(yuan)器件(jian)的焊接做準備。所用設(she)備為絲(si)印(yin)(yin)機（絲(si)網印(yin)(yin)刷(shua)機），位(wei)于(yu)SMT生(sheng)產線(xian)的前端。點膠(jiao)：它是(shi)將膠(jiao)水(shui)滴到(dao)(dao)PCB的的固(gu)定(ding)位(wei)置(zhi)上(shang)，貼(tie)(tie)(tie)片(pian)加(jia)工供(gong)應，其主要作用是(shi)將元(yuan)器件(jian)固(gu)定(ding)到(dao)(dao)PCB板(ban)上(shang)。所用設(she)備為點膠(jiao)機，沈陽貼(tie)(tie)(tie)片(pian)加(jia)工，位(wei)于(yu)SMT生(sheng)產線(xian)的前端或檢(jian)測設(she)備的后面(mian)(mian)(mian)。

貼(tie)(tie)片(pian)(pian)電(dian)(dian)(dian)感(gan)(gan)(gan)(gan)選用(yong)：1、貼(tie)(tie)片(pian)(pian)電(dian)(dian)(dian)感(gan)(gan)(gan)(gan)的凈寬要小于(yu)電(dian)(dian)(dian)感(gan)(gan)(gan)(gan)器凈寬，以避免過(guo)多的焊(han)料在冷卻(que)時造成過(guo)大(da)的拉應力改動電(dian)(dian)(dian)感(gan)(gan)(gan)(gan)值。2、市場(chang)上能夠買到的貼(tie)(tie)片(pian)(pian)電(dian)(dian)(dian)感(gan)(gan)(gan)(gan)的精(jing)密度(du)大(da)部分是(shi)±10%，若想要精(jing)密度(du)高于(yu)±5%，貼(tie)(tie)片(pian)(pian)加工報價，則需要提前訂貨。3、很(hen)多貼(tie)(tie)片(pian)(pian)電(dian)(dian)(dian)感(gan)(gan)(gan)(gan)是(shi)可以用(yong)回(hui)流焊(han)和波峰(feng)焊(han)來焊(han)接的，但是(shi)有些(xie)貼(tie)(tie)片(pian)(pian)電(dian)(dian)(dian)感(gan)(gan)(gan)(gan)是(shi)不能選用(yong)波峰(feng)焊(han)焊(han)接的。4、維修時，不能僅僅憑仗電(dian)(dian)(dian)感(gan)(gan)(gan)(gan)量(liang)來交換貼(tie)(tie)片(pian)(pian)電(dian)(dian)(dian)感(gan)(gan)(gan)(gan)。還要曉得貼(tie)(tie)片(pian)(pian)電(dian)(dian)(dian)感(gan)(gan)(gan)(gan)的任務頻段，保證任務功能。