空洞算焊接面积么？ Peng Yunjun(Mr) 彭云军(先生) CACC PT Department [log in to unmask] +86-431-84684785 13756139127 发件人: Rock <[log in to unmask]> 收件人: <[log in to unmask]> 日期: 2011-11-29 11:56 主题: [TGAsia] 答复: [TGAsia] 答复: [RMX:###] [TGAsia] 陈海燕 不在办公室 。 发件人: TGAsia <[log in to unmask]> 偏移是不大于25%，即焊接面积需大于75%。 发件人: TGAsia [mailto:[log in to unmask]] 代表 Peng Yunjun 发送时间: 2011年11月29日 11:48 收件人: [log in to unmask] 主题: [TGAsia] 答复: [RMX:###] [TGAsia] 陈海燕 不在办公室。 各位专家， 我们IPC中说了，空洞现象正常。偏移可以25%。 也就是说我们焊接面积的覆盖率小于75%是可以接受的，那到底底线是多少50%， 或 者是什么值。 sop下面带散热体的元件， 有同样的问题，如覆盖面积过大，容易有焊球！ 望高手指教！！！ Peng Yunjun(Mr) 彭云军(先生) CACC PT Department [log in to unmask] +86-431-84684785 13756139127 ______________________________________________________________________ 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] ______________________________________________________________________ ______________________________________________________________________ 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] ______________________________________________________________________ ______________________________________________________________________ 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] ______________________________________________________________________