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Subject:	Re: Removal of Solder Mask from CU pads
From:	Julie Silk <[log in to unmask]>
Reply To:	TechNet E-Mail Forum <[log in to unmask]>, Julie Silk <[log in to unmask]>
Date:	Tue, 23 Feb 2010 11:50:15 -0600
Content-Type:	text/plain
Parts/Attachments:	text/plain (17 lines)

We've used a micro-sandblaster and baking soda.  The baking soda is hard 
enough to go through the epoxy, but soft enough not to damage the copper.  
Some care is needed.  Then you can wash off the baking soda.

Julie Silk
Agilent Technologies

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