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January 2000

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Subject:
From:
Bob Dube <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 18 Jan 2000 11:05:51 -0500
Content-Type:
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text/plain (58 lines)
That's a Dexter product. Don't have the phone number handy but their
corporate headquaters are located in Londonderry NH. They can get you a data
sheet. The proper test method is similar to what you describe except that
masking tape is not what's specified. Details on testing can be found in the
IPC test methods manual. However, from the sound of things there definiely
appears to be a problem. Most probable root cause (he said knowing long
distance diagnosis is frequently bogus) is surface prep/cleanliness prior to
mask application.

Bob Dube

-----Original Message-----
From: Tom Burek <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: Tuesday, January 18, 2000 9:02 AM
Subject: [TN] Solder Resist


Can any one tell me where I can get a hold of a data sheet for Hysol SR1010W
solder resist?
How about a test method for Solder Resist.
On a recent trip North I have seen some circuit boards that are using this
Solder resist and with a tape method of testing (meaning they put a piece of
masking tape on the board and pull it up) they are pulling up the solder
resist in some places.  The copper is becoming exposed.  Not good.  If
anyone has some information about why this is happening or where I can get a
spec/data sheet on this material I would appreciate it.
Tom Burek

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