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Date: | Tue, 3 Oct 1995 05:34:38 +0800 |
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>Date: Mon, 02 Oct 1995 15:25:25
>To: IPC - TechNet
>From: Luke Mendoza <[log in to unmask]>
>Subject: Re: difficult soldering on OPC bare copper boards
>
>At 09:13 AM 8/25/95 DST, you wrote:
>>On Fri, 18 Aug 95 17:59:03 PST [log in to unmask] wrote:
>>> We are having trouble soldering organic protective coated bare copper
>>> boards. The difficulty is occurring with manual iron soldering in the
>>> post wave/wash shop.
>>> The boards soldered fine in SMT, and then they were washed. They then
>>> sat several weeks awaiting finalization of engineering changes and
>...
>> Allen: There are a couple of different approaches you can try.The
>> easiest is to try a stronger core solder.You don't specify the type
>...
>
>One approach is to pre-tin the bare copper areas that you intend to
hand-solder later on. This would involve adding stencil openings
corresponding to the pads to be hand-soldered. This way, you would not have
to worry about copper oxidizing.
>
>-Luke-
>
--
Luke B. Mendoza
http://www.iphil.net/user/lmendoza/
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