Electronics Forum | Wed Apr 17 21:13:53 EDT 2002 | ianchan
Pondering over general perception that SMT technicians are amongst the lowest grade job levels within the company (next to operators?), you have all been warned by the experiences of Mr Guy Kawasaki. During Mr.Guy's career days with the initial (Ap
Electronics Forum | Thu Apr 15 01:29:35 EDT 2004 | pyro747
Hello Everyone, I am having a pin chain speed problem. The speed of the chain will slow down after start up of the oven. Example if you set the conveyer to run at 41 in/min, as the oven warms up of conveyer will slow down phycally but won't chan
Electronics Forum | Fri Apr 30 10:56:27 EDT 2004 | Bryan She
We tested J6 open on .5mm pitch CSP(In fact,only resistance much lower than normal).J6 is one of the corner ball of the CSP.Defect rate is about 3%. Stencil:4 mil thickness,10 mil square aperture, solder mask openning:10 mil diameter circle. Board fi
Electronics Forum | Mon Jun 28 22:44:13 EDT 2004 | davef
Q1: What is the most popular PCB finish for lead-free soldering ? A1: We'd guess ENIG Q2: Who drives the selection of the finish, assembler or designer ? A2: A tight circle of recrimination, blame letting, and other human ills that is primarily driv
Electronics Forum | Wed Dec 15 16:20:48 EST 2004 | darby
I read with interest in September Circuits Assembly magazine an article entitled "Reducing Variation Through 'Intelligent' Stencils. In this the authors propose that by REDUCING stencil thickness from 0.005" to 0.004", the paste deposit volume will I
Electronics Forum | Tue Apr 26 17:28:29 EDT 2005 | davef
Not sure. Try: * ScanCAD International; P.O. Box 598, 19181 Highway 8, Morrison, CO 80465-0598; 303-697-8888 F 303-697-8580 info@scancad.com http://www.scancad.com * Artwork Conversion Software; 417 Ingalls St., Santa Cruz, CA 95060; 831-426-6163 F
Electronics Forum | Wed Jul 12 23:29:23 EDT 2006 | KEN
Ah yes Mechanical Engineers. My previous company hired one Fresh out of College. Ink was still wet on his B.S. degree when he entered the shop. I passed by his desk. He had a CAD drawing on the monitor which he was feverously working on. It showe
Electronics Forum | Sun Apr 29 09:12:15 EDT 2007 | davef
co2 and laser * Laser Marking ** Promation ELM-700A YL [CO2][10411 Corporate Dr, Suite 104, Pleasant Prairie, WI 53158; 262-857-3100 F262-857-9847 pro-mation-inc.com/laser%20marking.htm] ** Nortek Automation SOL850 Laser Marking System [15632 Produ
Electronics Forum | Mon Aug 04 16:20:35 EDT 2008 | patrickbruneel
After analyzing the pictures I don't think the solder balls are caused by the solder mask. If the problem would be solder mask related the solder balls would only show up on the solder mask but there are also solder balls on the plastic tabs. To me i
Electronics Forum | Wed Feb 04 10:01:55 EST 2009 | dcell_1t
Hi there, We're developing a DOE where stencil design (aperture design) is going to be evaluated, currently we have regular reduction on sides, home base (triangular and semi-circle), "C" or "U" shape, and an idea for oval shape for pasives also cam
