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焊錫膏使用常見問題分析

焊膏的回流焊接是用在SMT裝配工藝中的主要板級(jí)互連方法，這種焊接方法把所需要的焊接特性極好地結(jié)合在一起，這些特性包括易于加工、對(duì)各種SMT 設(shè)計(jì)有廣泛的兼容性，具有高的焊接可靠性以及成本低等；然而，在回流焊接被用作為最重要的SMT元件級(jí)和板級(jí)互連方法的時(shí)候，它也受到要求進(jìn)一步改進(jìn)焊接性能的挑戰(zhàn)，事實(shí)上，回流焊接技術(shù)能否經(jīng)受住這一挑戰(zhàn)將決定焊膏能否繼續(xù)作為首要的SMT焊接材料，尤其是在超細(xì)微間距技術(shù)不斷取得進(jìn)展的情況之下。下面我們將探討影響改進(jìn)回流焊接性能的幾個(gè)主要問題，為發(fā)激發(fā)工業(yè)界研究出解決這一課題的新方法，我們分別對(duì)每個(gè)問題簡(jiǎn)要介紹。
底面元件的固定
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