Electronics Forum | Fri Jul 28 08:44:43 EDT 2006 | russ
I might suggest a few books first roger, then a tour through a few Fab shops. Very aggressive and admirable goal to go from nothing to 16 layer Mfg. Many old established shops still can't even do that!!!!! Russ
Electronics Forum | Tue Nov 03 18:09:17 EST 2009 | gregoryyork
I think most have summed up the first pictures also is the drillng looking like it is misregistered as well. Better to do a solvent test to determine resist cure not the old stuff the newer chemicals show under cure problem much better. Try your st
Electronics Forum | Tue May 15 21:57:06 EDT 2001 | davef
Welcome!!! Where the hay ya been??? Sorry bud, were lining-up with your fab [it hurts me to say that, but when yer ] We used to dry pack with desiccants, also. Its probably an old MIL-STD-2073-1C requirement [er something like that]. We qui
Electronics Forum | Thu Jul 05 06:36:14 EDT 2001 | nifhail
Thanx Dave, I agree with you on the planning part...yapp!! the same guy who've thrown an old datecode components to me..now they did it again on the PCB. Well Dave, could you explain a little bit more about the "hi-test flux" that you mentioned ab
Electronics Forum | Thu Jul 05 06:38:35 EDT 2001 | Danial
Thanx Dave, I agree with you on the planning part...yapp!! the same guy who've thrown an old datecode components to me..now they did it again on the PCB. Well Dave, could you explain a little bit more about the "hi-test flux" that you mentioned ab
Electronics Forum | Mon Feb 24 13:17:59 EST 2003 | Stephen
Air is non-conductive, and it is moving. Not only is it moving, it is moving against something else i.e. the hose. Anytime you have movement (friction) between two dissimilar non-conductive "things" you have the possibility of static build-up. This
Electronics Forum | Thu Jul 05 11:14:04 EDT 2001 | caldon
We can offer two ways. We have a process control tool for OSP boards to validate the finish......but the dates yer talking may be best to take Daves F suggestion. NOW as far as the HASL finish goes...We may have your answer. We can Chemically revers
Electronics Forum | Sun Apr 24 09:12:00 EDT 2005 | davef
We're not sure what your customer is talking about either. Gold and tin form an intermetallic compound [IMC] that can cause poor solder connections. To minimize the potential of a problem, keep gold to less than 3 percent of the metal. [Search the
Electronics Forum | Wed Jul 04 10:40:51 EDT 2001 | nifhail
I have thousands of old datecode PCBs which has an Entek and HASL finished. Entek PCBs are about 6 � 1.5 years old and HASL boards are at 1 - 2 years old. To make it worse, some of them came in the loose form, no vacuum seal� nothin�. As for the HA
Electronics Forum | Thu Jul 05 19:39:19 EDT 2001 | davef
I had forgotten that it was you that was on the Sipad adventure. [But then again, who can keep track of yer aliases? ;-)] You just go from one adventure to the next. Expanding On Dave�s Hi-Test Flux Method Theory � PASTE: Yes, contact your favorit
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