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July 2004

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Subject:
1oz Copper vs. .5 oz Copper
From:
Cal Driscoll <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 28 Jul 2004 08:19:42 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (29 lines) 
Hi All-

One of our PCB designers came to us with a recommendation from our Bare
Board fab house-
We typically use 1 oz copper and the fab house is asking us to use .5 oz
copper and build it up to 1 oz.

Since I am not a designer, so I would like some input from TechNet on this
type of practice.

Facts:
99% of our boards are used in Telecommunications products
Most of our boards have QFP's in the 12 mil range
Typically most of our boards have Gold pads/finish


Thanks,
cal

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