1,PCB PAD設計,該零件在PCB板的中間,還距離板邊? 2,回流焊溫度調整 3,零件乾燥 4,半成品運送過程 5,零件本身的設計方式,是否在貼片之前就已經crack了,這點很重要。 以上供參考。 寄件者: TGAsia [mailto:[log in to unmask]] 代理 Chen Hao 寄件日期: 2013年12月25日 下午 02:13 收件者: [log in to unmask] 主旨: [TGAsia] IC 焊接问题 Hi All 请问同行这样封装的IC,Reflow条件及生产过程中是否有特别需要注意的点? 另外,这种封装的IC四个角落是否特别容易出现Crack现象?该如何避免及预防? 以上,谢谢! [cid:[log in to unmask]] BR, Michael ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask]<mailto:[log in to unmask]> ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________ TGAsia是一个为业界同仁提供技术交流的平台。您可以在论坛上提出技术问题,交流行业经验,寻找供应商等。请勿发送任何招聘,广告信息。(注:对于寻求供应商的邮件,请勿回复[log in to unmask],请私下和发件人联系)。如您需要退出该邮件论坛,请直接发送邮件至 [log in to unmask]<mailto:[log in to unmask]> ,谢谢。 ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________