removing parts from PCBs
Dwight K. Elvey
dwight.elvey at amd.com
Mon Nov 14 11:32:31 CST 2005
>From: "Allison" <ajp166 at bellatlantic.net>
>>Subject: removing parts from PCBs
>> From: compoobah at valleyimplants.com
>> Date: Fri, 11 Nov 2005 20:31:31 -0600
>> To: <cctalk at classiccmp.org>
>>I've seen several references to using torches to remove DIPs from PCBs. Are
there any specific things to keep in mind to avoid heat damage? Are you talking
propane plumber's blowtorches?
>Dang, thats one long line!
>Yes, work fast.
>Myself I torch the bottom and use a spring loaded chip extractor.
>That and a pliers or tiny screwdriver to straighten any bent
>pins keeping it in the board.
>Success rate to date is 99% (board was known bad before salvage).
I've used peanut oil and a fry pan. Then wash the
parts in detergent to remove the oil. You need to wear
gloves and goggles as safety gear. Hot peanut oil
in your eye is not something I'd like to even think about.
Make sure that the assembler didn't bend the corner leads
of the ICs. If they did, you'll need to straighten them
before the oil, using a soldering iron.
It just seems to me that the oil method is a little more
controlled than a torch.
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