Electronics Forum | Fri May 11 14:54:38 EDT 2012 | stentech
I am not aware of the Nano protek flaking off. However I do believe it can wear off through abrasion. Unforunately there is no red light goes off when it has worn unless you have good paste inspection. Even when it wears it will not take you to a neg
Electronics Forum | Tue Jan 08 09:23:18 EST 2013 | lock_2002
This is a question regarding soldermask between pins of fine pitch devices. The majority of our production designs end up with at least 2-3 mils of copper thickness on the external layers due to blind vias, wrap plating requirements, etc. Our curre
Electronics Forum | Wed Mar 30 14:02:25 EDT 2016 | blnorman
The program I'm working on is having endcap metallization/resistive element failures. These are on MELFs manufactured by IRC/TTE (MCHP). A sister program is having the same issues. They pulled a couple of date codes and did visual examination and
Electronics Forum | Tue May 16 20:59:46 EDT 2000 | Dave F
Ashok: Haven't unloaded that ESD Coordinator job yet have you? Smocks: Don't work, they're hot, and no one likes them, but they put up with them (sort of). Now if they knew they didn't work, all the customer PR in the world wouldn't help. The bi
Electronics Forum | Thu Oct 15 16:41:28 EDT 1998 | Dave F
| | All Y'll | | | | How do you clean components that must be added to an assembled board after water wash? | | | | BACKGROUND | | | | Our basic process goes like this: | | | | 1 Print paste with OA flux, place, reflow, wash | | 2 Repeat 1 | |
Electronics Forum | Sat Oct 17 10:50:11 EDT 1998 | mike
| | | All Y'll | | | | | | How do you clean components that must be added to an assembled board after water wash? | | | | | | BACKGROUND | | | | | | Our basic process goes like this: | | | | | | 1 Print paste with OA flux, place, reflow, wash |
Electronics Forum | Sat Apr 21 08:26:57 EDT 2007 | Cmiller
Has anyone experienced a problem with conformal coating adhesion to IS-410 boards? We are having problems with one suppliers boards. IS-410 boards from other suppliers are fine and all FR-4 boards that I have looked at are fine. We are using Conap
Electronics Forum | Thu Jan 22 11:12:06 EST 2009 | davef
Conformal coating masking: Electronic equipment manufacturer's use conformal coating processes to protect printed circuit modules from moisture, fumes, rapid temperature changes and other environmental conditions. Typically, pressure sensitive tapes
Electronics Forum | Mon May 14 17:12:20 EDT 2001 | davef
Continuing along the path that Brian took ... IPC-7525 gives design guideline for stepped stencils. It goes something like: * Stepped area SB GT 25 thou from pads located on the greatest thickness of the stencil * Pads in stepped area SB GT 35 tho
Electronics Forum | Thu Sep 30 12:29:01 EDT 1999 | Dave F
| Hi everyone, | | Greetings! | | I�ve got a 2-layered through-hole PCB�s having the following problems: | | Solder Mask peels after wave soldering at random locations and only at the bootom side of the PCB | Insufficient Solder and some solder ne
