Electronics Forum | Mon Mar 23 16:12:34 EST 1998 | Stuart Adams
Do I need to specify any type of special finishing to my PCB manufacturer when having boards fabbed that contain BGA footprints ??? Thanks, Stuart
Electronics Forum | Fri Feb 27 14:33:45 EST 1998 | David Spilker
We are reviewing our CIM tool. Any comments on who has the best software, support, value.
Electronics Forum | Tue Mar 10 16:53:15 EST 1998 | Scott Penin, SMT Manager
We have 2 sites using CircuitCAM. It is very inexpensive (compared to balance). Uses straight gerber data (simple) and has excellent visual aids.
Electronics Forum | Thu Dec 13 15:14:07 EST 2001 | cc
Does anybody know what is the nominal thickness for via masking and is there a set max.? I recently have some bridging on some fine pitch components and my suspicion is that the new fab with new via masking is the culprit. Thanks CC
Electronics Forum | Fri Jun 14 02:13:11 EDT 2002 | john_wsme
Ross, Thanks for your advice. I will take a look at FAB warp and check the pad size. If you also have any suggestions on rework BGA profile, please share some information which is a great help for us. The best regards, John Need help from everybod
Electronics Forum | Mon Aug 12 18:44:50 EDT 2002 | dragonslayr
sounds like a couple of goofballs held an impromptu frisbee contest in your receiving inspection area. As likely a cause as any, given the limited information you supplied. Plus, you have already decided that it is not your fab house, so what can con
Electronics Forum | Tue Aug 20 19:15:39 EDT 2002 | stownsend
On a gold plated PCB, when in the PCB fab process is the gold plating applied? How about OSP, when in the process is OSP applied?
Electronics Forum | Wed Sep 18 19:43:12 EDT 2002 | dragonslayr
One more variable I've remembered - pad height with respect to solder mask height. Pads being too low can cause stencil "gasketing" problems that in turn allow more paste to be deposited than needed. Are your fabs HASL or some other media?
Electronics Forum | Wed Oct 09 12:29:14 EDT 2002 | ppcbs
We have been encountering black pad contamination on gold plated boards mainly affecting BGA components during assembly. This problem has been noticed with many of our customers that are using an array of fab vendors. Does anyone have a solution fo
Electronics Forum | Thu Nov 14 08:28:11 EST 2002 | dphilbrick
Rogers is a PWB materials manufacturer based in CT. they make a lot of unique materials for PWB fab such as a 1 time bendable PWB.
