Received: |
by ipc.org (Smail3.1.28.1 #2)
id m0ulEq7-00001wC; Tue, 30 Jul 96 08:27 CDT |
Old-Return-Path: |
|
Date: |
Tue, 30 Jul 1996 09:37:40 -0400 |
Precedence: |
list |
X-Loop: |
|
Message-ID: |
|
X-Status: |
|
Status: |
O |
X-Mailing-List: |
|
TO: |
|
Return-Path: |
<TechNet-request> |
From [log in to unmask] Tue Jul 30 12: |
10:20 1996 |
Resent-Message-ID: |
<"GBHhC1.0.wOI.QtW_n"@ipc> |
Subject: |
|
From: |
|
Resent-From: |
|
Resent-Sender: |
|
Parts/Attachments: |
|
|
Atotech has the capability of running TOC - total organic content on the
copper plating baths - also running footpaths on a cvs unit helps track the
mode of the solution itself - many years ago when working with a major
supplier - we had our customers run on an amphr/gallon basis - along with
hull cell - cross sections - surface to hole distribution - but found that
this was only a good guideline and not a reliable process to put in place -
with the introduction of organics thru the copper sulfate solutions - the
organics coming in from drag -in - cleaner - quality of ur sulfuric pre-dip -
organics from dry-film - TOC is a much more reliable method than setting a
number based on amperhrs/gallon.
Atotech Canada Ltd
richard fudalewski
[log in to unmask]
***************************************************************************
* TechNet 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. *
***************************************************************************
|
|
|