Removing glued on heatsink (was: Anyone need 486 motherboards?) - test-drb@ccmp.vtda.org

29 Oct 2002

...
 From: "Don Maslin" &lt;donm(a)cts.com&gt;

On Tue, 29 Oct 2002, chris wrote:

  Ok, anyone know of a safe way of removing a glued
on heatsink? I have a
 few of these 486 CPUs where the heatsink is glued down. I could just jam
 a screwdriver in and snap it off, but that just doesn't seem very good
 for the chip. 
Better a single edge razor blade or a putty knife than a screwdriver!
Too much local load with the screwdriver blade - probably crack the
chip.
						- don

> -chris
> <http://www.mythtech.net>
> 
Hi
 I've always removed glued things from chips by heating it
first with a hot plate. We used to remove the epoxied covers
...
 from EPROMs this way in the lab when someone would plug
one in upside down. This way we could replace the blown bonding
wire ( the most common failure for reversed power ).
 It was handy to have a wire bonder around ( Ah, the good old days ).
Dwight