🚀 go-pugleaf

On Wed, 25 Feb 98 13:35:37 GMT, 4ms2u$ms@michaels.demon.co.uk
(Michael Salem) wrote:

>Re question on how to fix a heatsink to a chip:
>
>You can buy special glue to do this. Places to try: Electromail; Maplin.
>
>I f I had to do the job, that's what I'd use; if it weren't available I'd
>follow the superglue + heatsink compound doughnut idea.
>
>(By the way, I think of Loctite as a weak adhesive to keep nuts and bolts 
>tight but removable, which is what it was before they started making all 
>sorts of adhesives under their brand. I think the Loctite suggestion 
>probably meant cyanoacrylate superglue.)

Loctite is a weak adhesive for nuts and bolts.  The reason I
suggested it is that you don't need a strong bond to the chip
face.  The thermal grease and the heatsink do the work.

If he ever wanted to remove it (ie: it created a short or card
won't fit with heatsink in a new Mother Board) he could easily
break the loctite where he might cause a cold solder joint trying
to rip superglue off.

The reason for the doughnut theory instead of a bead around the
edge is for the same reason.  If you beaded the outside it would
be much harder to get back off but with a dot in the center of
loctite and grease on the outside, even though less efficient,
would allow prying room to get it off if need be.

Will