DESIGNERCOUNCIL Archives

1996

DesignerCouncil@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: Paper based pcb laminates ie CEM
From:
[log in to unmask]
Date:
Fri, 24 Jan 1997 06:17:48 -0500 (EST)
Content-Type:
text/plain
Parts/Attachments:
text/plain (32 lines) 
Pat
 
     We use quite a bit of CEM1 for our high volume single sided through hole
boards.  The only problem we have with it is warp and twist.  So I would be
not want to use it for SM if I had any discrete parts larger then 1206 due to
a greater CTE.

     We have also used the V notch on the break-a-ways.  Do to the extrem
bending of the board to break these apart I would not use them with SM
either.

     The V notches work well on our through hole boards but we had to spend
some time with our assembly people to teach them the proper way to break them
apart.


Pete Holden 
Coin Acceptors
ST Louis MO

***************************************************************************
*   The mail list is provided as a service by IPC using SmartList v3.05   *
***************************************************************************
* To unsubscribe from this list at any time, send a message to:           *
* [log in to unmask] with <subject: unsubscribe> and no text.*
***************************************************************************
* If you are having a problem with the DesignerCouncil, please contact    *
* Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask]      *
***************************************************************************

ATOM RSS1 RSS2