Electronics Forum | Tue Sep 18 11:34:36 EDT 2001 | jschake
The tightest spacing between neighboring 0201 components assembled was 8-mils. Please refer to the response for the query entitled �Minimizing Tombstoning Defects� posted by martys, as the response provided there is also relevant to address this que
Electronics Forum | Thu May 28 10:57:10 EDT 1998 | John
Our company is currently looking to implement a SMT production line. What I am looking for is feedback on people's experiences with various machines. Here's what we are in the market for: Low/Mid volume 3,000+cph machine that can handle high job fle
Electronics Forum | Fri Aug 23 16:02:37 EDT 2002 | davef
Low Cost Flip Chip Technologies for DCA, WLCSP, and PBGA Assemblies; John Lau; McGraw-Hill Professional; ISBN: 0071351418; 2000 * Chapter 6. Flip Chip on Board with Conventional Underfills. * Chapter 7. Flip Chip on Board with No-Flow Underfills. * C
Electronics Forum | Wed Jun 06 09:28:35 EDT 2007 | larryp
Thanks for the help but I do have another question. First I guess that just the touching of the smock to the skin is anough to give the charge on the person a path to the smock. OK I can accept that if button up at the breast and sleeves. Now I kno
Electronics Forum | Wed May 20 17:56:51 EDT 2009 | dyoungquist
I have attached a pdf showing the dimensions for the QFN we placed. First, The pins on the part are not only on the bottom side but also wrap around to come up each of the 4 sides of the part as shown in the side view in the attached pdf. This i
Electronics Forum | Sun May 23 21:33:42 EDT 2010 | ashley
"The part is picked up and head goes to it's xy location" Hello mickd, I believe VP had passed but machine is confused how to compensate & place. OS error normally associate with a faulty VME card. Please check the following :- VM1152 VM1730 VM193
Electronics Forum | Thu Apr 07 20:42:19 EDT 2022 | stephendo
The boards were just a little larger than a SOT8. IIRC we had a pizza slicer type depanelizer and it wasn't too bad. We just did enough to populate the bare PCBs we had. Where I am now a customer has us put a QFP and a few other parts on a SOW28 f
Electronics Forum | Thu May 10 02:57:03 EDT 2001 | kjellman
Hi, Why not have a look at Philips/Assembl�on, their ACM machine is quite nice. It may also bring you down to Flip Chip, 0201 some through hole and odd form placement. Nice options like bulk feeding, coplanarity tests, fluxing for FC, prom feeders (
Electronics Forum | Fri Jul 28 14:34:13 EDT 2000 | Gary Simbulan
Belive it or not, these boards were run through a Centech batch mode Vapor Phase machine. Single stage top side IR preheat. Vapor temp 218 C. Solder paste is an SN62 RMA.The boards were FR4 8 layer w/ solder mask, fairly conventional as might be e
Electronics Forum | Tue Jun 27 16:29:28 EDT 2006 | Board House
There was a good artical on this in Assembly Magazine October 5, 2005 by Donald P. Cullen, Director of OEM and Assembly Applications, MacDermid Inc., Waterbury, CT Heres the Link http://www.assemblymag.com/CDA/Archives/56840a86f06c9010VgnVCM10000
