IPC-600-6012 Archives

December 2009

IPC-600-6012@IPC.ORG
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Subject:
Re: double-layer copper wrap
From:
Chris Mahanna <[log in to unmask]>
Reply To:
(Combined Forum of D-33a and 7-31a Subcommittees)
Date:
Thu, 31 Dec 2009 10:27:07 -0500
Content-Type:
text/plain
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text/plain (33 lines) 
Roberto,
Two or more layers of plating (that are not separated) are the same as one.  Happy New Year!
Chris


Chris Mahanna
Technical Manager
Robisan Laboratory Inc.
6502 E. 21st Street
Indianapolis, Indiana 46219
317-353-6249



-----Original Message-----
From: IPC-600-6012 [mailto:[log in to unmask]] On Behalf Of Roberto Tulman
Sent: Thursday, December 31, 2009 1:40 AM
To: [log in to unmask]
Subject: [IPC-600-6012] double-layer copper wrap

Hello all!

The copper wrap requirement for filled holes asks for a continous copper from 
the hole to the pad. This wrap should be at least of a certain thickness.
I would like to have your oppinions about the acceptability of this wrap if it is 
built of two layers.
For example if 12 microns thickness is required, we built two 6 micron layers.
Happy New Year !

Roberto Tulman, CTO
Eltek Ltd.
tel. +972-3-9395004

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