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June 2012

TGAsia@IPC.ORG

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Subject:
From:
Jessy Lai <[log in to unmask]>
Reply To:
Jessy Lai <[log in to unmask]>
Date:
Fri, 8 Jun 2012 08:46:29 +0000
Content-Type:
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HI:



   从你的图片来看,这是一个多色灯,对于多色灯,若连接部分为树脂连接,这样受潮气影响非常大,



潮气大会加大热胀冷缩,从而导致将树脂连接撑开,这些LED灯会时亮时不亮,



  若为双电极晶片则不会存在这种问题,可靠性会好很多。



   对于此类LED一定要做好防潮和烘烤管控







Thanks & Best Regards,



 PE  Jessy.Lai



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发件人: TGAsia [mailto:[log in to unmask]] 代表 smtaoi

发送时间: 2012年6月8日 15:47

收件人: [log in to unmask]

主题: [TGAsia] LED测试时不亮是否与温湿度有关!







大家好:







  请教一下各位专家,目前我司给客户SMT贴片的一个产品上有贴LED灯(此LED灯为客户自己生产,前期包装上没有标明MSL),在组装测试时发现LED灯不亮,



客户后来在包装袋上注明MSL为6级,要求在上线前按LEVEL 6的标准先烘烤24H再生产,想请教以下两个问题:







1>,此LED测试时不亮是否与温湿度有关?







2>,这种LED是否一定要按照LEVEL 6的要求进行管控?



















2012-06-08



  _____



smtaoi





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