Electronics Forum | Wed May 25 21:03:30 EDT 2011 | thanhnguyen22
Hi All, I am new the PCBA process fabrication. I have found many cracks in the PCB after we have cross sections analysis. The cracking has same kind of pattern. It happens betwen the solder and the PCB, or between the solder and the part, BUT not be
Electronics Forum | Tue Mar 25 08:13:10 EDT 2008 | davef
Turns out, SMTnet didn't want us to use the name of the town where the publisher of Reference 1 is located.
Electronics Forum | Mon Mar 24 12:11:11 EDT 2008 | jdumont
Thats the one I found while researching this AM also. Thanks for the assist. Any ideas if this can be process related? Im sure it can be but its odd that it only happens on one vendors board. I think because it is an 10 layer board that maybe they ha
Electronics Forum | Mon Mar 24 09:09:40 EDT 2008 | jdumont
Hello all, we have been seeing a lot of issues with broken or open vias on a couple of our bare boards. We have two vendors make these for us and the issue is only with one vendors boards. We have stopped using them until we can figure out what is go
Electronics Forum | Fri Nov 05 14:47:35 EST 1999 | Russ Cutler
We recently came to a cross roads... We have historically baked out ALL of our circuit cards, with a 2 fold purpose 1) to dry the part marking ink, and 2) to eliminate any moisture, which could result in measling further in the process of assembly.
Electronics Forum | Thu Jun 23 16:10:31 EDT 2022 | jdengler
Maybe try Essentra Components. We have some of out Bivars that are crossed to them.
Electronics Forum | Thu Mar 08 18:39:06 EST 2007 | elias67
Stencil Thickness should be .005" A reduction along with cross hatching is a must for the center pad to reduce paste volume as well as to assure even paste deposit while printing on a large pad. With out the cross hatch, the squeegie will most like
Electronics Forum | Mon Jun 16 14:40:21 EDT 2008 | fredc
Try Crest-ultasonics.com Their sales people can help you with the right model number for your application. We have a couple of smaller units with years of service. Ask and see if circuit boards are an appropriate application. Ultrasonic cleaning is
Electronics Forum | Tue Mar 14 17:00:35 EST 2006 | SJ
Thanks for the great feedback. Could you tell me whether you think it's a major handicap for Intuitive since they do not have a complete solution to address checking inventory and buying for cross-components? They sent me a doc for beta implementat
Electronics Forum | Fri Apr 18 07:50:10 EDT 2008 | scottp
I'm curious if anyone has figured out a clever way to errorproof this. We're exempt from RoHS so we have mostly SnPb products but some Pb free ones at customer request. Of course, we have methods to control moisture sensitive parts, but I worry tha
