Electronics Forum | Fri Jul 30 09:43:44 EDT 1999 | C.K.
| We are having a process related problem with pullup resistors on a controller card which has a I960 micro-processor. | The controller monitors signal inputs and it's own resources then blinks a LED to indicate its working. The problem is that after
Electronics Forum | Tue Sep 07 06:24:07 EDT 1999 | Steve Cheung
We are changing over to a No-Clean paste soon and l was wondering how other people tackle the issue of stencil and PCB cleaning in high-volume production. The paste we are using is Cobar 325RX and its pretty sticky stuff let me tell you! Our proble
Electronics Forum | Fri Aug 07 01:02:51 EDT 1998 | zeek - just wanna to get a word in here
| | I am looking for advice or information from anyone about the possible reliability problems associated with epoxy on solder pads of discrete devices. Will the epoxy expand and lift over time, Will there be adverse reaction between the solder and t
Electronics Forum | Mon Feb 12 02:17:32 EST 2007 | Wayne
Most of the semi-con is using SAC305 balls. Only the PCB assembly house feels the heat, but semi-con never feels any pressure.
Electronics Forum | Tue Sep 07 12:33:03 EDT 1999 | Mike Konrad
You are correct in your assessment that no-clean pastes are difficult to clean. I understand why you would need to clean lots of stencils, but why would you need to clean "high volumes" of PCB's? If you are planning on cleaning high volumes of PCB'
Electronics Forum | Tue Sep 07 20:21:31 EDT 1999 | armin
| | We are changing over to a No-Clean paste soon and l was wondering how other people tackle the issue of stencil and PCB cleaning in high-volume production. | | | | The paste we are using is Cobar 325RX and its pretty sticky stuff let me tell you!
Electronics Forum | Tue Sep 07 06:29:19 EDT 1999 | Earl Moon
| We are changing over to a No-Clean paste soon and l was wondering how other people tackle the issue of stencil and PCB cleaning in high-volume production. | | The paste we are using is Cobar 325RX and its pretty sticky stuff let me tell you! | |
Electronics Forum | Mon Sep 13 11:02:08 EDT 1999 | Bill Schreiber
Mike failed to list the company that introduced the first ultrasonic stencil cleaner in 1990. The company remains the leader in stencil cleaning worldwide: Smart Sonic Corporation Tel: 1(800)906-4407 Fax: 1(818) 909-6409 e-mail: smt@smatrsonic.com w
Electronics Forum | Wed Apr 29 02:57:05 EDT 2015 | jandon
Immersion tin is very sensitive for handling, scratches, storage condition and time, thermal influence and washing. You will get problems in second reflow if you have double sided PCB with immersion tin surface finish.
Electronics Forum | Thu Jun 04 14:30:13 EDT 1998 | Igmar
I would appreciate any information concerning the wash and bake of blank Printed Circuit Boards before assembly. + Is it necessary to wash and bake PCB�s before assembly? + If any, what is the reason for wash and bake of PCB�s? + If any, what type of
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