Electronics Forum | Fri Aug 26 21:23:38 EDT 2005 | Jes�s Salinas
Hello , In our case we take the results from the repair station. Each test station has its own repair station so from there we count the process defects : placement and printing. The formula used to calculate PPM = DEFECTS / (PARTS PER BOARD x UNITS
Electronics Forum | Tue Aug 16 08:01:20 EDT 2005 | davef
Peter: Questions are: * From your pictures, the white residue appears to be only on the solder mask. Is that correct? If not, what is the location [eg, solder, nonsolder/nonmask areas] of the residue that doesn't show well in the pictures? Further,
Electronics Forum | Tue Aug 16 11:27:14 EDT 2005 | saragorcos
Hi Peter, I posted these links to Technet as well, but figured I would add them here as well in case any of the smtnet readers would like to see them. Here are some links to some articles about white residue sources, and whether or not white residue
Electronics Forum | Wed Aug 17 07:55:28 EDT 2005 | cyber_wolf
I had a camera go bad on my SPM machine. Of course MPM has discontinued this camera, and the upgrade to fix it cost 10K. Does anyone have any suggestion where I may be able to locate a replacement, or get it fixed ? The camera I have conveniently h
Electronics Forum | Wed Aug 17 10:46:48 EDT 2005 | pjc
MPM did not discontinue the camera, the camera manufacturer did. It�s not a custom made camera for MPM. Try searching used or second-source cameras. There are three types of vision systems offered on the SPM: manual cross-hair, semi-auto and high-res
Electronics Forum | Wed Aug 17 16:09:08 EDT 2005 | pjc
A skilled hand-soldering operator can easily do the rework. Applying liquid flux and raking the iron tip across the leads removes bridges. Removal and replacement of QFP-64 can be done manually. This is of course for very low volume of this type QFP-
Electronics Forum | Thu Aug 25 08:54:24 EDT 2005 | stepheniii
Could it be cold solder? Are there parts nearby that might be soaking up lots of heat, or maybe lots of internal grounding near that corner? Once I saw something similar except it was on two different assemblies. Each time it was on the side of the
Electronics Forum | Thu Aug 18 23:08:03 EDT 2005 | donb
G'day all, Does anyone have a SonoFlux 2000F fixed head spray fluxer? If so, can you please give me feedback on the quality of flux coverage and topside fillets as compared to a reciprocating head system. We are in a position where we need to spen
Electronics Forum | Mon Aug 22 11:49:59 EDT 2005 | pjc
Fixed spray head performance depends on board width. If you are looking for complete top-side hole fill, the flux penetration into the lead-hole will be more in the center and less on the ends because of the fan pattern spray. For board widths over 6
Electronics Forum | Mon Aug 22 09:57:46 EDT 2005 | gavinscott
Hi All, The method that I use when training operators is.. a visual aid that shows the operators what way the trays are placed into the machine and the polarity of the component and also the component change logs. The matrix trays that I have delt w
