Good morning,

We have some ICs that appear to have been blacktopped. (Steve G. -
thanks for the excellent link in July).

Now the question is why - what is covered up?  Our concern is that
commercial grade is being identified as industrial.  

Is there a method for looking under the blacktop to determine what was
there before the cover-up? 

Thanks,

Gary

Gary Camac
Senior Manufacturing Engineer
DICKEY-john Corp.
5200 Dickey John Road
Auburn, IL 62616-0010
Telephone 217-438-2288



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