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February 2000

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Subject:
From:
Bob Caprio <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 1 Mar 2000 03:33:08 -0500
Content-Type:
text/plain
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text/plain (61 lines)
Depending on the mesh used and how the mask is being applied,.015 dia holes
should plug no problem.
Our average is about 5 tenths after final cure and we are having no problems
plugging via's and may have
done so on some of your companies boards.

-----Original Message-----
From:   TechNet [mailto:[log in to unmask]] On Behalf Of Wolfe, Robert
Sent:   Tuesday, February 29, 2000 11:59 AM
To:     [log in to unmask]
Subject:        [TN] LPI Solder Mask Thickness

Technet,
What is the general range of thickness that can be held with LPI mask.?
Is it in the .0006 inch range or is it up around .001-.002 inch?
If it is really in the .0006 area it could not possibly cover a .015 dia
hole and another
via plug or fill prior to solder mask would need to be done to fill these
holes?
We may have inadvertanly noted LPI to be .001-.002 thick and should have
stated .002 MAX.
TIA
Bob Wolfe
Executone Inter-Tel Business Information Systems
Robert M. Wolfe
Lead PCB Designer
478 Wheelers Farms Road
Milford, CT 06460
Phone: 203-882-6405
Fax:   203-882-2727
Email: [log in to unmask]

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