Electronics Forum | Tue Nov 17 09:24:24 EST 1998 | Earl Moon
| | For some as yet unkown reason, we have started to have some boards sag and go under the wave. The boards are surface mount top side and conventional components wave soldered. We have checked the wave hight and both the profiles on the wave solder
Electronics Forum | Wed Nov 18 21:58:17 EST 1998 | Dave F
| | | For some as yet unkown reason, we have started to have some boards sag and go under the wave. The boards are surface mount top side and conventional components wave soldered. We have checked the wave hight and both the profiles on the wave sold
Electronics Forum | Mon Oct 19 12:03:09 EDT 1998 | Scott Cook
Out of interest, are you using an 84V? 84VZ? a 60V? 60VZ? With SBIP or the Yamaha vision system (VICS 1000)? Do you have the old tray sequencer? > WRONG!!!! Why do folks still live in this mindset? I'm not slamming you personally. But this is preva
Electronics Forum | Wed Oct 21 21:27:32 EDT 1998 | smd
| | WRONG!!!! | Why do folks still live in this mindset? I'm not slamming you personally. But this is prevalent in our industry. | More opinion: | Make REWORK a nasty, dirty word. Work for the ROOT cause of a process problem. DO NOT ACCEPT rework a
Electronics Forum | Wed Jun 03 11:17:17 EDT 1998 | Brian Stumm
If your board is single sided you should convey it on a mesh belt conveyor. Unfortunately most assemblies these days are double sided which makes it difficult to convey on the mesh belt. Plus with the increasing population on SM boards the weight is
Electronics Forum | Wed Jun 03 14:37:53 EDT 1998 | Anthony
I really appreciate everybody taking the time to help me out with this problem. I'm going to run your input by the design engineer, after that I may be taking you up on that offer to contact you Earl. Again; thank you! Anthony | If your board is si
Electronics Forum | Tue May 26 17:29:42 EDT 1998 | Earl Moon
| I know, I've read the "been there done that" stories about this subject, but I still profess ignorance on some aspects. | We are using NPO type dialectric caps in potted high voltage assemblies and continue to experience catastrophic vailures. U
Electronics Forum | Sun May 17 13:46:30 EDT 1998 | Steve Gregory
Hi All! I've been reading this conversation which prompted me to break out the IPC-SM-786A from the IPC manuals from our parent company in Maryland sent us (we're just starting up in California). It's the Procedures for Characterizing and Handling of
Electronics Forum | Fri Jan 11 17:14:13 EST 2002 | davef
We have one product with electroless nickel, immersion silver solderability protection. We do not purport to be experts, but like many things, have seemingly boundless opinions. Side note: There are a least three different [maybe five] imm silver
Electronics Forum | Fri Apr 12 17:22:47 EDT 2002 | davef
First, splitting hairs on parlance. * Conformal Coating. A thin electrically nonconductive protective coating that conforms to the configuration of the covered assembly to provide environmental and mechanical protection. * Solder Mask. Coating mate