在SMT貼片加(jia)工(gong)(gong)中,元器件的貼裝質量非常關鍵,因為它會影響到產品是否穩定。那么世豪同(tong)創小編來分享一下影響SMT加(jia)工(gong)(gong)貼裝質量的主要因素。
一、組件要正確
在貼片加(jia)工中(zhong),要(yao)求每個裝配號的(de)(de)元件的(de)(de)類(lei)型(xing)、型(xing)號、標(biao)稱(cheng)值和極(ji)性等特征標(biao)記要(yao)符合(he)裝配圖(tu)和產品明細表的(de)(de)要(yao)求,不能放在錯誤的(de)(de)位置(zhi)。
二、位置要準確
1、元器件的端子或引腳應盡量與焊盤圖形對齊并(bing)居(ju)中,并(bing)保(bao)證元器件焊端與焊膏圖形準確接觸;
2、元件貼裝位(wei)置應符合工(gong)藝要求。
3、壓力(貼片高度)要正確適(shi)當
貼(tie)片(pian)(pian)(pian)壓力(li)相當(dang)于吸嘴的z軸(zhou)高(gao)度(du),其高(gao)度(du)要適中(zhong)。如果貼(tie)片(pian)(pian)(pian)壓力(li)過(guo)小,元(yuan)器件的焊(han)端或引腳會浮在錫膏表(biao)面,錫膏不(bu)能粘在元(yuan)器件上,轉(zhuan)移和(he)回(hui)流焊(han)時容(rong)易(yi)(yi)移動位置。另外,由于Z軸(zhou)高(gao)度(du)過(guo)高(gao),在芯片(pian)(pian)(pian)加工(gong)過(guo)程(cheng)中(zhong),元(yuan)器件從高(gao)處掉(diao)下,會導(dao)致芯片(pian)(pian)(pian)位置偏移。如果貼(tie)片(pian)(pian)(pian)壓力(li)過(guo)大,錫膏用量過(guo)多,容(rong)易(yi)(yi)造(zao)成錫膏粘連,回(hui)流焊(han)時容(rong)易(yi)(yi)造(zao)成橋接。
武漢世豪同(tong)創自(zi)(zi)(zi)動(dong)(dong)化設備有限公(gong)司是一家從事(shi)自(zi)(zi)(zi)動(dong)(dong)化設備研(yan)發,設計(ji),生(sheng)產和(he)銷售的高科技(ji)企業。公(gong)司主營(ying):SMT周邊設備,3c自(zi)(zi)(zi)動(dong)(dong)化設備,SMT生(sheng)產線定(ding)(ding)制,smt自(zi)(zi)(zi)動(dong)(dong)化設備定(ding)(ding)制,自(zi)(zi)(zi)動(dong)(dong)吸板機(ji)(ji),自(zi)(zi)(zi)動(dong)(dong)送板機(ji)(ji),自(zi)(zi)(zi)動(dong)(dong)收(shou)板機(ji)(ji),跌送一體(ti)機(ji)(ji),移載機(ji)(ji)定(ding)(ding)制。