Electronics Forum | Thu Aug 14 14:01:03 EDT 2003 | Andrea
I was recently given a copy of the "Tin Whisker Agency Action Notice" I was then asked to recommend and implement a action to prevent the suseptible components from reaching our stockroom. Since I can not commit my personel to activly research which
Electronics Forum | Thu Aug 14 16:36:45 EDT 2003 | Hussman
Anyone using these 2010 resistors? We just tried them and they bow like crazy during reflow. Not very good looking. Profile meets manufacturers spec. The part solders and works fine, but I'm a little concerned about putting anything on a board th
Electronics Forum | Fri Aug 15 09:56:50 EDT 2003 | russ
A lot of this depends on the initial quality of the OSP. I have had boards that aren't any good being stored air tight for one day. While believe it or not, I recently used boards that were opened and sat for 1 1/2 years and we built them with no pr
Electronics Forum | Wed Aug 20 17:25:02 EDT 2003 | Dean
Coincidence? I just finished a glass calibration this morning on a P&P machine. Excellent tool for precision calibration. Takes the guess work out of the process. I would disagree with Cal's assessment. His calibration methods may work to suit h
Electronics Forum | Wed Aug 20 18:17:56 EDT 2003 | stefwitt
I guess we should differentiate between machine calibration, process reliability measurements and process capability study. For the machine calibration you use the machines own optical cameras, but for cpk or standard deviation you measure the place
Electronics Forum | Tue Aug 19 13:47:46 EDT 2003 | slthomas
What are you going to fill the chamber with when it needs to be opened? If you use air, will the evacuated components suck up any available moisture? I've never done anything like this with electronic components, but some of the more porous materi
Electronics Forum | Wed Aug 20 09:15:10 EDT 2003 | John S
My company is developing a product that will require solder paste to be printed on a piece of cast aluminum. The surface of the casting is not completely flat. It has been recommended that one way to work around this might be to use a screen instea
Electronics Forum | Wed Aug 20 11:21:30 EDT 2003 | Stan Stacy
Our old roof mounted air conditioners are currently not working. We are having some very humid weather right now which has been giving us some solder paste contamination problems. My Surface Mount line is in one room, (approx. 19,000 sq. ft.) along w
Electronics Forum | Thu Aug 21 08:47:34 EDT 2003 | caldon
Stan- One of our buildings (not our SMT line or components) Has Great Aircondition but can not regulate the humidity. The building is cool but Wet (No need to lick envelopes as they are already stuck together) from humidity. We went out and found th
Electronics Forum | Wed Aug 20 21:30:56 EDT 2003 | paulm
Our company if currently reviewing our BGA Screen Printing Process. The problem we are trying to eliminate has to do with BGA Ball Size Variance. Some of our vendors are allowing a +/- of 0.004" in ball size. This would allow for the possibility of a
