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Fri, 16 Jul 2004 12:05:51 -0400 |
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7628 is the lowest resin content (%) prepreg generally available (which is
why it's cheaper), and filling 2 oz copper takes a lot of resin. 7628 is
about 40-44% RC, while 2113/2313/2116 are 54-56%, 1080 is 62-65% and 106 is
72-75%.
It's better to do something like:
-----2 oz Cu----
2113
7628
2113
-----2 oz Cu----
than:
-----2 oz Cu----
7628
7628
-----2 oz Cu----
Tim Reeves
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Parial Swati
Sent: Thursday, July 15, 2004 8:41 PM
Subject: Re: 7628 prepreg?
Why is it that laminate voids are likely with such a combination ?
Regards,
Swati...
****************************************************************************
***
7628 aginst 2 oz copper is not recommended. Possible lamination issues are
likely, i.e. lam voids.
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