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Subject:
DES: Punched via
From:
es500yap@pts7 ( YAP CHOW LAN)
Date:
Thu, 31 Oct 1996 19:16:06 +0800
Content-Type:
text/plain
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text/plain (27 lines) 
Hi,
I read an article today and came across "Punched Vias"......
Has anyone come across the Punched vias technology?  Where is this technology
commonly used?  What are the design guidelines, I mean the annular ring and
the
small achievable mass-production holesize?  And what are they limitations?

Appreciate any information.

Stella Yap

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