TECHNET Archives

January 1998

TechNet@IPC.ORG
Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
Re: PWB Coupons
From:
Sharon Polmanteer <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Sat, 31 Jan 1998 11:02:02 -0800
Content-Type:
text/plain
Parts/Attachments:
text/plain (53 lines) 
Hi,

Seems like a drag to toss boards because of this.  Even if you had to use a
percentage of the boards for destructive testing, as in providing
validation boards, it would be better than scrapping them.

Have a good day.
Sharon

At 10:17 PM 1/30/98 EST, you wrote:
>IPC Community
>      We at the University of Dayton RI have been evaluating PWBs for a local
>company.  They want to reject a lot of PWBs because the coupons on the outer
>edge of the board were greater than 0.5 inch from the active area of the
board
>as specified by IPC 275.  The coupons look good in xsection.  Cross sections
>in the active area appear to have a random etchback problem.  Comments
please.
>
>Dale Hart
>Group Leader Failure Analysis
>Univ of Dayton Research Institute
>
>################################################################
>TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
>################################################################
>To subscribe/unsubscribe, send a message to [log in to unmask] with
following text in the body:
>To subscribe:   SUBSCRIBE TechNet <your full name>
>To unsubscribe:   SIGNOFF TechNet
>################################################################
>Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional
information.
>For the technical support contact Dmitriy Sklyar at [log in to unmask] or
847-509-9700 ext.311
>################################################################
>
>
>
>

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
################################################################

ATOM RSS1 RSS2