hi,

i think you should believe your fabricator.  your thickness tolerance sounds way to tight to me.  unless, of course, you want to pay an exhorbitant amount for your board.

phil

-----Original Message-----
From: d. terstegge [mailto:[log in to unmask]]
Sent: Wednesday, July 05, 2000 8:56 AM
To: [log in to unmask]
Subject: [TN] Tolerance on board thickness


Hi Technet,

It's quiet on Technet. Or is it just me ? Problems with the server again ? Compensation for all the double messages from a few weeks ago ?
Anyway, I've got a small question :
We've ordered a 4 layer FR4 board with a thickness specification of 1.6 +/- 0.05 mm. The supplier says he can't build it with such narrow tolarances. The customer won't accept anything worse than this.
What do you think, should the average fabhouse be able to build a board like this or is it completely unrealistic ?
Hope to hear from you.

Kind Regards,

Daan Terstegge
SMT Centre
Signaal Communications
Unclassified mail
Personal Website: http://surf.to/smtinfo

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