RE: [SI-LIST] : Solder resist coatings

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From: Mendelsohn, Joseph P (Joseph) ([email protected])
Date: Wed Mar 07 2001 - 06:57:31 PST

Charles A. Harper, Electronics Packaging & Interconnection Handbook, Second
Edition; McGraw Hill, New York, 1997
pages 8.46-8.47 Tables 8.27-8.28

-----Original Message-----
From: Ken Taylor [mailto:[email protected]]
Sent: Wednesday, March 07, 2001 1:26 AM
To: [email protected]
Subject: [SI-LIST] : Solder resist coatings

Can anyone tell me, or refer me to a source of data, about typical
dielectric constants, thickness, and lossiness of solder resist coatings.
I would also welcome input on the application methods of the coatings,
whether they result in a uniform coating thickness over the copper and
laminate surface, or does the application process result in a plane surface
(as if the coating was applied in a flood), or something inbetween. In fact,
any information at all, or a source of information, will all be most
gratefully received.
Thanks all.
Ken Taylor
Polar Instruments, Portland, OR.
503 356-9001

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