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asdasc · 12-30-2005

When decapusating semiconductors (computer chips), we use concentrated sulfuric, It can sit on the mold compound for quite a while with little effect at room temp. We set the parts on a hot plate to get them warmed up (too hot to touch) and then it eats away the mold compound in a few seconds.

What I am saying is, the added temp will make it potentially VERY fast, so do some testing and get a good rythem going at a controllable temperature.

12-30-2005	#38 (permalink)
asdasc Senior Contributor Join Date: Oct 2005 Location: Mt. Clemens, Michigan Posts: 888 Classified Rating: 0% (0)	Watch the Heat When decapusating semiconductors (computer chips), we use concentrated sulfuric, It can sit on the mold compound for quite a while with little effect at room temp. We set the parts on a hot plate to get them warmed up (too hot to touch) and then it eats away the mold compound in a few seconds. What I am saying is, the added temp will make it potentially VERY fast, so do some testing and get a good rythem going at a controllable temperature.