Depotting for failure analysis is done all the time using either concentrated nitric (as pointed out in an earlier email), or in a mixture of nitric / sulfuric acid. At my company we use concentrated nitric. It does a fine job.
Best regards,
Leo
Leo M. Higgins III, Ph.D.
Sr. Vice President, Engg and Technology
ASAT, Inc.
13809 Research Blvd., Suite 635
Austin, Texas 78750
office phone 512-249-4758
mobile 512-423-2002
[log in to unmask]
www.asat.com
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Susan Hott
Sent: Thursday, October 11, 2007 1:21 PM
To: [log in to unmask]
Subject: Re: [TN] Dissolving SOIC casing
Thanks for the offer, but need to do it pretty quick here or farm out to someone else.
Customer wants to see the die inside.
Susan
-----Original Message-----
From: R Sedlak <[log in to unmask]>
To: [log in to unmask]
Sent: Thu, 11 Oct 2007 1:55 pm
Subject: Re: [TN] Dissolving SOIC casing
Susan:
Why don't you send me one of these casings, and let me do some experimenting,
and give you a recommendation.
Rudy Sedlak
RD Chemical Company
1350 Pear Avenue
Mountain View CA 94043
Susan Hott <[log in to unmask]> wrote: Greetings to all
I need to dissolve the black "plastic" casing on an SOIC to see the die.? Does
anyone know what I can use to do this?
Thanks
Susan Mansilla Hott
Robisan Lab
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