 
| Received: |
by ipc.org (Smail3.1.28.1 #2)
id m0vpeoU-0000UPC; Wed, 29 Jan 97 12:32 CST |
| Content-Type: |
text/plain; charset=us-ascii |
| Old-Return-Path: |
|
| Precedence: |
list |
| Resent-From: |
|
| From [log in to unmask] Wed Jan 29 14: |
32:24 1997 |
| Resent-Sender: |
|
| Content-Transfer-Encoding: |
7Bit |
| Priority: |
normal |
| Delivery-Date: |
29 Jan 97 13:42:22 -0500 |
| Original-Encoded-Information-Types: |
IA5-Text |
| X400-Recipients: |
|
| Resent-Message-ID: |
<"kGxfI3.0.wvB.HVvxo"@ipc> |
| Subject: |
|
| X400-Received: |
by /PRMD=scn/ADMD=mci/C=us; Relayed; 29 Jan 97 13:41:10 -0500 |
| Importance: |
normal |
| Message-Id: |
<0129183912-FAB - Defective units on panelized PWBs*/G=Jennifer/S=Gray/O=ssc/OU=boc4/PRMD=scn/ADMD=mci/C=us/@MHS> |
| X400-Content-Type: |
P2-1984 |
| Date: |
29 Jan 97 13:41:10 -0500 |
| X-Loop: |
|
| Conversion: |
Allowed |
| Status: |
O |
| X-Mailing-List: |
|
| Autoforwarded: |
FALSE |
| TO: |
|
| Return-Path: |
<TechNet-request> |
| X-Status: |
|
| Message-Type: |
Multiple Part |
| Content-Identifier: |
FAB - Defective |
| From: |
|
| Alternate-Recipient: |
Prohibited |
| Conversion-With-Loss: |
Allowed |
| X400-Originator: |
|
| X400-Mts-Identifier: |
[/PRMD=scn/ADMD=mci/C=us;XGW-970129133912-0500-30544] |
| Parts/Attachments: |
|
|
Is there an industry standard for allowable defects, or x-outs, for panelized
PWBs? For instance, if a panel is 8-up, and there are 625 panels in the lot
(5000 pcs. total in the lot), what is a reasonable defect rate? A PWB
manufacturer has suggested 1 PWB per panel, and a max. of 10% of the panels in
the lot. For this example, that allows 62 panels with an x-out, which seems
excessive. The problem with the x-out is that the automatic pick and place
equipment will stuff the bad PWB unless manually overridden, so there will be
scrap component costs. Comments, please.
***************************************************************************
* 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] *
***************************************************************************
|
|
|
