Electronics Forum | Mon Apr 09 14:53:19 EDT 2007 | flipit
Hi, We were running with few defects with lead solder paste. The lead solder paste with stencil 0.010" X 0.020" and 0.004" thick stencil produced near defect free PCB assys. 0.010" X 0.020" (0.004" thick) lead = defect free 0.010" X 0.020" (0.005"
Electronics Forum | Thu Jun 16 18:23:52 EDT 2005 | Jason Fullerton
Check your pick height/depth. Check your feeder alignment. We run 0402s at 0.10 tact. We run 0201s at 0.20 tact, but only because I don't require any more throughput - I have placed them at 0.10 during testing, and there are companies that place th
Electronics Forum | Mon Nov 13 16:24:49 EST 2000 | Darby
Depending on the designers pad size, I generally go for 0.010" aperture with 0.010" spacing - stencil thickness 0.005". This combo with metal squeegees and the "usual suspects" of printer set up and placement details should you you hassle free.
Electronics Forum | Mon Apr 03 07:46:21 EDT 2006 | cyber_wolf
I have a pad layout that has .010" dia. with .010" spacing. Going to use a .004" foil. I know I need to over print them, but how much without causing bridging issues ? Thanks, Sr.
Electronics Forum | Wed Feb 03 17:39:41 EST 1999 | Rich Croteau
Name of equipment that automatically does the solderballing. Pads are .010" on .050" pitch
Electronics Forum | Tue Jun 07 19:24:44 EDT 2005 | russ
We use a .010" - .012" gap with .020" square pads.
Electronics Forum | Tue Jul 18 09:36:05 EDT 2006 | dave
Guys, what about hole to lead size? is it lead size + 0.010' + tolerance
Electronics Forum | Fri Apr 06 10:43:57 EDT 2007 | flipit
Hi, Anyone seeing difficulty is soldering MLFs or QFN with lead free solder? I have an MLF with 3 rows of pads on each of the 4 sides of the part and then the large center ground plane in the middle. The part is 20 mil pitch. Had good luck with l
Electronics Forum | schurch |
Tue Jan 08 13:46:13 EST 2008
Electronics Forum | Fri Jul 17 07:33:45 EDT 2009 | mmjm_1099
http://www.laserstentech.com/010~HOME/ VERY COMPETITIVE WITH PRICING !!!!
