Electronics Forum | Fri Feb 18 13:26:49 EST 2005 | GS
Thanks Dan. Q. to all : any EMS experience like when your Customer audits your facility for manufacturing readiness and when they ask you: what about control of component vintage ? or how do you handle the component shelf life on your facility? etc
Electronics Forum | Wed Feb 16 09:37:58 EST 2005 | beta
Hi Guys, I have a customer who requires 95 paper 8*4 CP6 feeders on the setup. We dont have the required quantity but we do have embossed feeders that we could use. Just looking for some onfo. on performance using paper in embossed feeders as I migh
Electronics Forum | Fri Feb 18 15:27:38 EST 2005 | jluckenbaugh
Frank R, I believe the Dymax #984-LVUF is a POLYURETHANE RESIN. I have used Humiseal 1A27 and 1A33 for several years with great success. Both of these materials are High VOC materials. If your customer does not require these materials to be aproved
Electronics Forum | Tue Feb 22 07:58:16 EST 2005 | davef
We hear you. If it's not broken, why fix it? Right? Well intentioned, but not very educated customers seems to be part of the bane of existance of process engineers at contractors. First, as a previous poster said, paste height is an improper mea
Electronics Forum | Mon Feb 21 10:05:33 EST 2005 | Dougs
Our machines can place components down to 16mil, I've never seen any finer pitch components in use, what pitch are they going down to now? 12mil??? What pitches have you been using? We are a contract manufacturer so customers sometimes supply free
Electronics Forum | Tue Feb 22 10:44:12 EST 2005 | Dougs
when you talk about stencil design, what would you recommend for aperture size on fine pitch if the customer insists on hasl finish on fine pitch devices? i usually use a 10% reduction on everything we have been using ( 16mil pitch and upwards and 0
Electronics Forum | Fri Feb 25 10:52:59 EST 2005 | russ
Would these be the parts that have just pads located on the bottom of the part? If so, we place these every day in decent volumes and have never had any manufacturing problems with them. I cannot comment on the reliability since we are a contract M
Electronics Forum | Wed Apr 20 18:13:32 EDT 2005 | greg york
With twenty five machines working with the LFB227/S on our little island it does seem to work well. Wetting is good compared to Tin/Copper and flow is comparable to 63/37. Biggest problem sticking 3 - 4 % Ag in a solder ignoring the patents and royal
Electronics Forum | Thu Mar 10 15:10:07 EST 2005 | bandjwet
In reviewing the myriad of BGA reliability tech papers there seems to be little commonality in the type of test protocols. There are tests that are industry specific, device vendor specific and customer specific. What guidance in terms of minimum me
Electronics Forum | Wed Mar 16 06:17:34 EST 2005 | Grant
Hi, We have this model wave, and spent a few days trying to eliminate residue. We also tried various no clean fluxes, and because we sell PCI cards they need to be clean, and we don't want to deal with a cleaning process. But in the end we gave up
