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| Date: | Tue, 8 May 2007 11:06:28 +0800 |
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谢谢各位的支持!
建议将不同表面处理PCB的存储期(未拆分)增加到IPC标准里
Lim Sze Pei
<[log in to unmask]
> 收件人
发件人: TGAsia [log in to unmask]
<[log in to unmask]> 抄送
主题
2007-05-02 13:17 Re: [TGA] 答复: Re: [TGA] 关于不同
表面处理PC B的存储气期
请答复 给
[log in to unmask]
I agree and it depends very much on your PCB supplier’s process and they
will usually give a the recommended shelf life (without opening the
packaging).
Usually OSP is 3-6months, depending on the OSP
HASL and Ni/Au can usually last 1year
Imm Ag and Imm Sn, usually around 6months or less
From: TGAsia [mailto:[log in to unmask]] On Behalf Of 李娅婷
Sent: Sunday, April 29, 2007 8:44 AM
To: [log in to unmask]
Subject: Re: [TGA] 答复: Re: [TGA] 关于不同表面处理PCB的存储气期
其实不同的客户要求是不一样的，一般是6个月，OSP或化金有的客户要求是3个月，有
的对HASL的期限放宽到一年。
如果说吸湿的话就在内包装中增加湿度指示卡了，但是会增加成本的。
--------- Original Message --------
From: [log in to unmask]
To:
Cc: [log in to unmask]
Subject: 答复: Re: [TGA] 关于不同表面处理PCB的存储气期
Date: 2007/04/28 17:18
OSP、沉锡、沉银都可以6个月吗？
谢谢！
李娅婷
<[log in to unmask]
.CN> 收件人
发件人: TGAsia [log in to unmask]
<[log in to unmask]> 抄送
主题
2007-04-28 17:15 Re: [TGA] 关于不同表面处理PCB的存储
气期
请答复 给
李娅婷
<[log in to unmask]
.cn>
呵呵，其实我也想知道，好像没有看到过，但是一般按客户的要求是6个月。
--------- Original Message --------
From: "Asia Committe Task Group Forum" <[log in to unmask]>
To: <[log in to unmask]>
Subject: [TGA] 关于不同表面处理PCB的存储气期
Date: 2007/04/28 16:38
你好！
请教各位一个问题，各种表面处理的PCB的储存时间是多长？在IPC的哪份标准中
有介绍？
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