Electronics Forum | Tue Oct 26 17:25:11 EDT 2004 | davef
In every part of the dive, assume the proper position, keep toes pointed always, relax hands but keep pointed, stretch arms, make sure legs are together during takeoff and the dive, hands have to touch the top of the toes in a pike position, moving t
Electronics Forum | Sun Jan 09 19:37:15 EST 2005 | Bob R.
I'm just thinking out loud here with no experience to back it up, but I could see where you're trapping air or solvent filled voids inside the via by tenting from both sides. When you go through a heat cycle like reflow or wave solder you could be e
Electronics Forum | Mon Dec 27 16:55:52 EST 2004 | jdengler
HOSS, Most spray fluxers won't help. If you get a spray fluxer that uses a high velocity spray gun, it might. That being said I had less problems with top side wetting from a foam fluxer myself. Make sure the foam height is good. Also had some pr
Electronics Forum | Wed Jan 12 10:05:20 EST 2005 | Dreamsniper
we are using polyimide boards 6 inches x 7 inches, 2.5mm thick, 12 to 14 layers, for aerospace industries. I am using a long bake of 12 hours at 70'C prior to manufacturing or exposure to elevated reflow and wave soldering temperature. If schedule i
Electronics Forum | Wed Jan 26 09:51:51 EST 2005 | jbrower
Sure, to be a true lead free enviroment all components need to be lead free or fall within the specifications of lead free as defined by the RoHS Directive. What I am doing is starting stage 1 of our journey. Layed out it looks some thing like this.
Electronics Forum | Tue Feb 01 12:52:19 EST 2005 | jbrower
Hi Tom, I did talk to Bob Gilbert about the sn100c. His comment is that it is a nickle stabalized alloy. Simplisticly, the tin and copper molecules would rather bond with the nickle. He also mentioned that with the SAC alloys, the manufactuers were
Electronics Forum | Wed Mar 16 06:17:34 EST 2005 | Grant
Hi, We have this model wave, and spent a few days trying to eliminate residue. We also tried various no clean fluxes, and because we sell PCI cards they need to be clean, and we don't want to deal with a cleaning process. But in the end we gave up
Electronics Forum | Tue Mar 29 14:03:25 EST 2005 | Ed Popielarski
Hi, Steve Gregory brought your post to my attention although I'm not a regular participant in SMTNET. I am an independent service provider and still work on the Treiber systems as well as many other process equipment types and brands. I probably hav
Electronics Forum | Wed Aug 24 11:48:37 EDT 2005 | Anthony
Hello, we are currently designing our first PCB with surface mount components on both sides of the board. I understand about solder thieves in order to help short circuits. Are there any good white papers or books which identify the best practices w
Electronics Forum | Wed Dec 14 08:06:07 EST 2005 | tk380514
Also we have just made a prototype for Wave soldered SMT components D-packs + 0603 + TSSOP�s on the bottom side with THT comp. on the top, the stencil manufacturer gave his personal library of glue stencil openings and adviced on stencil thickness wh
