Electronics Forum | Thu Feb 16 09:37:11 EST 2006 | mgillespie
hi, > > we tried to introduce form-flex a few > years back and it caused more problems than it > fixed. > > Switched back to pins and no > problems. > > It might have improved since but I > would be reluctant to get them again unless I was >
Electronics Forum | Sun Mar 12 22:02:40 EST 2006 | Steveo
Personally I think Grid lok is inferior to the new Vacunest system, especially in screen printing. Vacunest is basically a bean bag that conforms to the shape of the PCB and then holds this shape indefinatley under vacuum, until the vacuum is releas
Electronics Forum | Fri Mar 03 16:05:42 EST 2006 | Chris
Hi, Anyone ever perform a DOE on prepreg glass bundle direction or glass bundle grain and how or if it affects PCB warpage and chip component cracking at V-score depanel? Since most FR4 and prepreg has has 1.4 times more fiber bundles in one direct
Electronics Forum | Mon Mar 13 04:49:59 EST 2006 | Fhail
Hi All, I'm new in PCBA process. Recently in my leadfree production we encountered a missing ring on some of the ring on the board after we ran hem through Wave soldering machine. The board has gone through double reflow prior to the Wave soldering.
Electronics Forum | Sat Apr 15 19:11:53 EDT 2006 | daxman
If I've been clear, the parts become offset as the XY table moves around, without fiducial correction. It's when it does a fiducial correction that the placement is alright. If the placement is excellent, and I just zip the table around...load posit
Electronics Forum | Tue Apr 18 12:34:15 EDT 2006 | Chunks
Outside the box: Can you retro your oven with a belt chain combo? I always order my ovens this way just in case. No pallet or carrier needed then. Can justify retro against the cost of the pallet or carrier. Two part epoxy instead of heat cure?
Electronics Forum | Wed May 10 13:03:50 EDT 2006 | PWH
It sounds like your depaneling method is good. The only thing left to look at is to see if the depaneler is hitting the part somehow from the cutter or the bottom plates. I've seen time and time again where an operator has a part in contact with th
Electronics Forum | Tue Jun 13 04:20:21 EDT 2006 | Grant
Hi, ok, I have a bit more info after playing further with the profiling. We are getting close, but we don't have enough top side heat I think. The IR lamps just don't give enough, but we can get better connector that should help. But we have anoth
Electronics Forum | Thu Jul 27 12:20:33 EDT 2006 | David
Hello all, We have customer who wants to produce boards 0.4 mm thick. But they have not allowed to put into the panel. Board has not regular shape so without pallet it is not possible to produce. I made pallet where is pocket the same shape as boar
Electronics Forum | Wed Aug 09 08:46:48 EDT 2006 | pavel_murtishev
Good afternoon, Take my word, bent THT leads will surely cause problems with manual/automatic component insertion, and surely will create voids in solder joints. As a rule, PIH components are placed by hand and good PIH THT manual component placemen
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