Electronics Forum | Wed Jan 16 14:46:41 EST 2002 | jdill
Is anybody out there using ScanPlace or any other type of Scanner cad package? Our current scanmount system went down and scancad no longer supports our scanner so we need to upgrade. I just want any kind of remarks from anyone about the scanplace s
Electronics Forum | Fri Jan 18 10:55:53 EST 2002 | cebukid
Okay here's what happened. We've got a "bonepile" of old obsolet profile boards with thermocouples attached. I asked the production Supervisor, could he have one of his people DE-SOLDER the T/C's, put them in a bag, and give them to me. So, what h
Electronics Forum | Sat Jan 19 09:30:45 EST 2002 | davef
Yes, you can rework your thermocouples, but consider using a method other than arc welding. Arc welding can join thermocouples, but it uses a filler. The filler adds a third material that affects the slope of the thermal profile. We rework our the
Electronics Forum | Fri Feb 01 03:03:08 EST 2002 | madreindeer
Hi, That is very common in WS pastes.It is white residue (Salt) Usually it�s not dangerous it only looking bad. I think best way would be contact your paste supplier and they should know what would take a stain off if not, change supplier. There i
Electronics Forum | Sun Jan 20 21:03:34 EST 2002 | peterson
Hello everyone! We just completed some 16-layer boards and noticed (after wave soldering) that there are some unique, white-ish discolorations. It looks as if someone layed their finger at weird angles on the groundplane areas. It is NOT finger prin
Electronics Forum | Mon Jan 21 09:27:02 EST 2002 | JohnW
Here's a question for you to mull over. I've got a PCB that is 4 millimeters thick, that's about 160thou of USA money if you like it that way. The question is IPC reg's for hole fill say it should be a min of 75% hole fill and 50% on ground planes. A
Electronics Forum | Mon Jan 28 00:48:21 EST 2002 | peterson
Being in the backplane biz, we too, encounter similar problems...especially when our customer reads the IPC as Biblical (you will achieve 75% fill or be turned into a pillar of salt). Anyway, recently, one of our process engineers suggested paste-hol
Electronics Forum | Wed Jan 23 17:14:33 EST 2002 | Shawn
We have seen solder joints that have an orange peel or textured appearance to them after running over our wave solder machine. We thought it may be disturbed solder joints but it does not have the lines or appearance that a disturbed joint usually sh
Electronics Forum | Tue Jan 22 18:53:37 EST 2002 | barry
Hi all, or anyone. We recently purchased some smd equip. to do our own inhouse assy. Though we did purchase a training package it was short and sweet. What I was wonderin is their any tips on oven profiling, we were told that 90% of our product would
Electronics Forum | Mon Jan 28 07:40:40 EST 2002 | cnotebaert
Yes and Yes, Your solder supplier should recomend a profile (standard profile) in most cases you can follow it. Of course you should be running a thermal profile of each board type to verify it is within the specified temp rang. You should also chec
.gif)
