Electronics Forum | Wed Jan 03 10:34:18 EST 2007 | dphilbrick
Your failure rate should be as good or better than any other leaded part on your board. Have you done a reflow profile on this board. We typically sacrifice a board and drill a hole from the bottom and then imbed a probe under the part to get the tem
Electronics Forum | Thu Jan 04 10:27:47 EST 2007 | slthomas
1) determine the rate of cleaning frequency related defects your production can tolerate. 2) determine the frequency that nets you that defect rate, or lower, but also consider the cost of cleaning materials and throughput if you're cleaning very oft
Electronics Forum | Wed Feb 07 16:16:10 EST 2007 | mr
I have seen this before. Check: --Vibration of belt --Interference (part getting "brushed off" while reflowing bottom-side components --Some glues' cross-linking mechanism is impaired by the flux during migration in reflow, redering the glue useless
Electronics Forum | Tue Jan 09 21:21:22 EST 2007 | behrsam
I am soldering a Germanium Window with a metalized rim to a Ni-Au plated kovar lid. The solder joint needs to be hermetic. I am using 80In solder washer shape preform, but am experiencing lots of voiding when x-rayed, although the joint is sealing.
Electronics Forum | Wed Jan 10 17:08:12 EST 2007 | mscalzo3
Brian, There are a couple of ideas that you can use for this. Slowing the ramp is the first one that comes to mind. I would try soaking at about 10 degrees "C" below the solidus of the alloy for about 45-60 seconds. Slowing the ramp to remove the
Electronics Forum | Thu Jan 11 05:58:35 EST 2007 | Peter
Hi All, We again have problem with Zevatech FS-730 This machine shows error E202162: "System error: T axis of center head: Parameter error when T axis performs PTP action.(Kind of unit)" and it stop running. It does not pick up components. At low spe
Electronics Forum | Thu Jan 11 18:16:40 EST 2007 | slthomas
I won't even guess, but I would suggest that if you don't get much help here (pretty tough question), you might try dogging somebody at IPC. They seem to have a pretty good handle on that kind of stuff. All I know for sure is that we shipped a worki
Electronics Forum | Sat Jan 13 19:34:16 EST 2007 | geb
(Its a flex head) I have made a trial program to determine at what point it stops. This is how it goes: I load the program, push the start button it will zero and pick components with head 1. As soon as it finishes placing head 1 parts it halts wher
Electronics Forum | Tue Jan 16 16:46:25 EST 2007 | realchunks
Well, I do know that different solder pastes have different lives. Sh@t, some solder pastes change characteristics from lot to lot. That's why we always restest solder pastes from different lots when doing an evaluation. Some of it has to do with
Electronics Forum | Mon Jan 15 13:12:18 EST 2007 | realchunks
So others can solder the same board and part but you can't. Dipping the legs in flux doesn't help. Then it's either your pre-heat or wave. Measure your pre-heat and compare to others or flux mfger. Do you have chip wave or something like an Omega
