塞(sai)孔(kong)(kong)(kong)(kong)(kong)的(de)(de)問(wen)題(ti)表現狀(zhuang)況： 1、噴(pen)錫(xi)(xi)(xi)(xi)板(ban) 噴(pen)錫(xi)(xi)(xi)(xi)板(ban)的(de)(de)單(dan)面塞(sai)孔(kong)(kong)(kong)(kong)(kong)，容(rong)易出(chu)現堵(du)孔(kong)(kong)(kong)(kong)(kong)、漏銅現象，焊(han)(han)(han)(han)接時堵(du)在孔(kong)(kong)(kong)(kong)(kong)口(kou)的(de)(de)焊(han)(han)(han)(han)錫(xi)(xi)(xi)(xi)會(hui)噴(pen)出(chu)來，形成錫(xi)(xi)(xi)(xi)球黏(nian)附在焊(han)(han)(han)(han)盤上，影響焊(han)(han)(han)(han)膏(gao)的(de)(de)印(yin)刷(shua)(shua)。 2、Im-Ag板(ban) Im-Ag板(ban)，由(you)于賈凡(fan)尼效應，處(chu)理后(hou)一(yi)方(fang)面孔(kong)(kong)(kong)(kong)(kong)壁會(hui)出(chu)現賈凡(fan)尼溝(gou)槽(cao)，另一(yi)方(fang)面，容(rong)易藏(zang)藥水，這(zhe)些都會(hui)影響導通孔(kong)(kong)(kong)(kong)(kong)的(de)(de)長期可靠性(xing)。因(yin)此，噴(pen)錫(xi)(xi)(xi)(xi)板(ban)、Im-Ag板(ban)一(yi)般不(bu)建議采(cai)用半(ban)(ban)塞(sai)孔(kong)(kong)(kong)(kong)(kong)設(she)計(ji)(ji)。 設(she)計(ji)(ji)要(yao)求： 1、噴(pen)錫(xi)(xi)(xi)(xi)板(ban) （1）指定(ding)采(cai)用傳統的(de)(de)“印(yin)刷(shua)(shua)阻(zu)焊(han)(han)(han)(han)——噴(pen)錫(xi)(xi)(xi)(xi)——塞(sai)孔(kong)(kong)(kong)(kong)(kong)”工(gong)藝(yi)。 對單(dan)面塞(sai)孔(kong)(kong)(kong)(kong)(kong)，業界有(you)兩種(zhong)工(gong)藝(yi)流程:即傳統的(de)(de)“印(yin)刷(shua)(shua)阻(zu)焊(han)(han)(han)(han)—噴(pen)錫(xi)(xi)(xi)(xi)塞(sai)孔(kong)(kong)(kong)(kong)(kong)”工(gong)藝(yi)和“印(yin)刷(shua)(shua)阻(zu)焊(han)(han)(han)(han)并塞(sai)孔(kong)(kong)(kong)(kong)(kong)———噴(pen)錫(xi)(xi)(xi)(xi)”工(gong)藝(yi)。前者，工(gong)藝(yi)比較復(fu)雜，有(you)兩個“濕工(gong)藝(yi)”，生產(chan)周期比較長，但一(yi)般不(bu)會(hui)產(chan)生堵(du)孔(kong)(kong)(kong)(kong)(kong)問(wen)題(ti)（與成孔(kong)(kong)(kong)(kong)(kong)孔(kong)(kong)(kong)(kong)(kong)徑有(you)關，≥0.3mm不(bu)會(hui)藏(zang)錫(xi)(xi)(xi)(xi)珠(zhu)），而后(hou)者70％的(de)(de)半(ban)(ban)塞(sai)孔(kong)(kong)(kong)(kong)(kong)會(hui)發生孔(kong)(kong)(kong)(kong)(kong)口(kou)堵(du)錫(xi)(xi)(xi)(xi)的(de)(de)問(wen)題(ti)。因(yin)此，要(yao)防止(zhi)噴(pen)錫(xi)(xi)(xi)(xi)板(ban)單(dan)面塞(sai)孔(kong)(kong)(kong)(kong)(kong)出(chu)現堵(du)孔(kong)(kong)(kong)(kong)(kong)的(de)(de)問(wen)題(ti)，應指明加工(gong)方(fang)法。 （2）改變設(she)計(ji)(ji)，采(cai)用開小(xiao)窗(chuang)(chuang)阻(zu)焊(han)(han)(han)(han)工(gong)藝(yi)。開小(xiao)窗(chuang)(chuang)阻(zu)焊(han)(han)(han)(han)設(she)計(ji)(ji)，還有(you)一(yi)個好處(chu)就是(shi)孔(kong)(kong)(kong)(kong)(kong)內(nei)不(bu)會(hui)殘留有(you)機物。 2、Im-Ag板(ban) 推薦采(cai)用全塞(sai)或開小(xiao)窗(chuang)(chuang)設(she)計(ji)(ji)。