Electronics Forum | Thu Jul 27 10:43:24 EDT 2006 | slthomas
Identify the machine/program variables that can change the results on a standard sample, DOE to identify the range of each variable within which you still net the correct result, then verify before startup that each variable is within the allowable r
Electronics Forum | Mon Aug 14 21:57:53 EDT 2006 | davef
For background, look here: * http://www.merix.com/technology.php?section=papers&page=pdf/surface_finish_aug_2002.pdf * http://www.empf.org/empfasis/2006/mar06/lfconversion.html * http://www.omnigraph.com/index1.html?content=/subpages/articles/whit
Electronics Forum | Tue Aug 29 06:00:47 EDT 2006 | bwet
Ladies and Gents: There have been several studies including (http://www.solder.net/PDFs/LeadFree_BGATesting_InitialCycling_BEST.pdf) which have shown lower fast pass yields with solder paste. Based on internal projects of 1000+ of the same BGAs we a
Electronics Forum | Tue Nov 21 20:35:17 EST 2006 | billwestiet
Look USED, but be very very careful with dispensers. I would suggest getting one from a reputable used broker that is willing to do a demo on your baord with your material, and video it for you. there are only a few that will do this, most want you
Electronics Forum | Mon Oct 02 17:31:40 EDT 2006 | daxman
ARGGH! I've verified proper airflow, made sure everything is tight and secure, cleaned and lubricated the bearings and nothing seems to help. first few boards are nice...then the next few are really bad..then they kinda get good again. I have no ide
Electronics Forum | Wed Oct 11 22:23:39 EDT 2006 | billwestiet
I've installed a number of these machines here in the US, several of them with VOC free applications. I would need to get a bunch of questions answered before I could make any suggestions: What is the pcb width? length? conveyor speed? flow rate (mm
Electronics Forum | Mon Nov 27 17:23:44 EST 2006 | billwestiet
Russ, I felt the same way before I took the job doing this, and actually only took the job after taking a weeks vacation to look at the machine. There is certainly some truth to Chinese companies basing thier engineering on existing well known suppl
Electronics Forum | Thu Jan 04 10:27:47 EST 2007 | slthomas
1) determine the rate of cleaning frequency related defects your production can tolerate. 2) determine the frequency that nets you that defect rate, or lower, but also consider the cost of cleaning materials and throughput if you're cleaning very oft
Electronics Forum | Thu Jan 25 17:43:33 EST 2007 | Ola
...and it should also be easy for the SMTnet to set a max pixel size and format types for the allowed attached pictures or files, so it would not sink the servers. Otherwise rejection of the attachement(s). If people are concerned with hidden trojans
Electronics Forum | Tue Feb 27 18:26:21 EST 2007 | jmelson
The machine is 2000 miles away, and the eBay auction has not closed yet. I'm working from what pictures and spec sheets I can find on the net right now. If I do win the bidding, I will need to be sure there is an opening wide enough for the machine
