 
| Subject: | |
| From: | |
| Reply To: | TechNet E-Mail Forum. |
| Date: | Mon, 17 Jun 2002 08:07:55 -0500 |
| Content-Type: | multipart/mixed |
| Parts/Attachments: |
|
|
Yes, It is probably the water wash. I had a similar problem with an opto device with a spray over spray but not spray over immersion wash styles. The cracking is occurring when the part is prepped. There will be more cracking if the device is prepped wide. To solve this we had to go to a spray over immersion wash process only. We were unable to change the PCB layout to think about a prep change.
Kat
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2715.400" name=GENERATOR></HEAD>
<BODY style="MARGIN-TOP: 2px; FONT: 8pt MS Sans Serif; MARGIN-LEFT: 2px">
<DIV><FONT size=1>Yes, It is probably the water wash. I had a similar
problem with an opto device with a spray over spray but not spray over
immersion wash styles. The cracking is occurring when the part is
prepped. There will be more cracking if the device is prepped wide.
To solve this we had to go to a spray over immersion wash process only. We
were unable to change the PCB layout to think about a prep change.
</FONT></DIV>
<DIV><FONT size=1></FONT> </DIV>
<DIV><FONT size=1>Kat</FONT></DIV></BODY></HTML>
|
|
|
