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 | 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 | 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 | Wed Feb 01 15:54:07 EST 2006 | Rick
I need to place one type of part (0.080x0.017x0.010 inches) on a flat wire with an accuracy of about +/-0.010 in any direction. Volumes to be about 500 to 1000 per day. Are there any relatively small pick and place machines available?
Electronics Forum | Wed Oct 25 13:42:32 EDT 2000 | Chris McDonald
I was wondering IF anybody has has success wave soldering a 50 (2 rows of 25) pin 0.050" pitch thru-hole connector. I seem to be getting alot of bridging no matter what I do. Is there a design spec for the size and shape of pads? The pads on the pcb
Electronics Forum | Tue Mar 01 03:25:33 EST 2005 | bing
We are using a GDM with a linear piston pump fitted to dispence adhesive on 0603's. Use Universal part number 43273801 needle with a 42346504 piston. The single needle dimentions are 0.010 ID, 0.028 OD, 0.005 stand off
Electronics Forum | Wed Jan 24 18:58:44 EST 2001 | davef
Permit me to recant ... The courtyard around a 0603 resistor should be: * 0.005" along the short edge of the component / pad * 0.010" along the long edge of the component / pad
Electronics Forum | Wed Jan 13 16:48:52 EST 1999 | Doug Sanders
Question about HSP 4796A (36,000 cph). What is the maximum XY table movement to maintain 0.10 cycle time.
