 
| Received: |
by ipc.org (Smail3.1.28.1 #2)
id m0vssJJ-0000YiC; Fri, 7 Feb 97 09:33 CST |
| Sender: |
|
| Old-Return-Path: |
|
| date: |
Fri, 07 Feb 97 7:54 |
| Precedence: |
list |
| Resent-From: |
|
| Resent-Sender: |
|
| MIME-Version: |
1.0 |
| Status: |
O |
| X-Mailing-List: |
|
| Content-description: |
Message Body |
| TO: |
|
| Content-transfer-encoding: |
7BIT |
| X-Status: |
|
| X-Loop: |
|
| From [log in to unmask] Mon Feb 10 12: |
50:42 1997 |
| Content-type: |
text/plain; charset=US-ASCII |
| Subject: |
|
| From: |
|
| Resent-Message-ID: |
<"BjN7G1.0.tjI.Zjq-o"@ipc> |
| Return-Path: |
<TechNet-request> |
| message-id: |
|
| Date: |
Wednesday, February 05, 1997 10:13AM |
| Parts/Attachments: |
|
|
I have performed studies to show that brushing leads is a real static
generator. This generation is greatly compounded if the bristles are made
of any synthetic material that tend to hold a charge. Natural bristle
brushes such as horse hair, (The horse does not have to die!) tend to not
develop or hold near the charges synthetic brushes do. Since any "brushing"
action is so conducive to developing a triboelectric effect, it might be
worth your while to use a low pressure ionized air system to blow the leads
away. Keep the air pressure low as not to turn the clipped leads in to
"missiles" when being blown.
Darrell Bonzo
EDO Corp./Acoustic Division
----------
From: Hollandsworth, Ron
To: dabonz; jasatt; mimall; 'mail@ih <[log in to unmask]>'
Subject: SUBJ: Q-Corp Lead Trimming & ESD
What information can anyone provide concerning brushing loose leads
and flags from circuit card assemblies and the preventative measures
to prevent electrostatic discharge (ESD) when using the brush provided
to clean off leads? We have had several ESD failures related to the
brushing action to clean off leads after the Q-Corp has cut the leads.
1. Has anyone any experience you could share?
2. What preventative measures have been taken to prevent ESD
failures?
***************************************************************************
* 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. *
***************************************************************************
* If you are having a problem with the IPC TechNet forum please contact *
* Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [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. *
***************************************************************************
* If you are having a problem with the IPC TechNet forum please contact *
* Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] *
***************************************************************************
|
|
|
