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September 2009

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Subject:
From:
Guy Ramsey <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Guy Ramsey <[log in to unmask]>
Date:
Fri, 25 Sep 2009 08:21:56 -0400
Content-Type:
text/plain
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text/plain (116 lines)
Interesting. Pretty slow in large areas. But, something to explore. 
I always think of our laser as a special drill or router. It can be very
precise. 
I never thought of using it as a plane. 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Glidden, Kevin
Sent: Thursday, September 24, 2009 4:50 PM
To: [log in to unmask]
Subject: Re: [TN] Solder Mask Question

I'm on a roll - time to go home - but the previous link is wrong.  THIS is
the right link:

http://www.avicennatech.com/laserablation.asp


-----Original Message-----
From: Glidden, Kevin [mailto:[log in to unmask]]
Sent: Thursday, September 24, 2009 4:41 PM
To: [log in to unmask]
Subject: Re: [TN] Solder Mask Question

If all the mask is over a copper plane, it could be removed by laser.  You
cannot remove mask over laminate with laser, to my knowledge.


-----Original Message-----
From: Guy Ramsey [mailto:[log in to unmask]]
Sent: Thursday, September 24, 2009 4:29 PM
To: [log in to unmask]
Subject: Re: [TN] Solder Mask Question

I don't think so.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: Thursday, September 24, 2009 3:54 PM
To: [log in to unmask]
Subject: [TN] Solder Mask Question

Eddie,

   Is cured solder mask re-workable.   I want to reduce the overall
solder mask thickness on some finished assembly to expose the ENIG
plated external pads.   The solder mask appear to be thicker than the
copper features,  Is it practical?

Victor,

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