Electronics Forum | Mon Dec 31 08:11:23 EST 2001 | hany_khoga
Dear all : We are suffering a severe curvature in our boards when coming out of the wave solder m/c. An Engineer suggested to enter them again for a second pass in the m/c expecting board were thermally mistreated just after the W.S. Can this real
Electronics Forum | Wed Jan 02 04:05:46 EST 2002 | ianchan
Well usually QA keeps the COC and x-section samples, for a designated minimum time period of 6 months, this time period is not set in stone and is defined by your ISO records retention period...each company bears varient importance to the retention o
Electronics Forum | Wed Nov 20 11:23:00 EST 2002 | Gris
Does any body know how many US or europe based component manufacturers have decided not to use Sn/Bi on lead plating. Most of far east manufacturers seem to have selected Sn/Bi on their component finish. Intresting articles on Samsung,Epson and OKI w
Electronics Forum | Thu Jan 03 02:35:18 EST 2002 | ianccy
Hi, I am trying to write SOP about the baking requirement of some CSP and uBGA components, the label on the packing said its usable within 72 hours and follow the MSL 4 condition, what does the MSL means? is it Material Safety Level? Has anything to
Electronics Forum | Thu Jan 03 02:36:04 EST 2002 | ianccy
Hi, I am trying to write SOP about the baking requirement of some CSP and uBGA components, the label on the packing said its usable within 72 hours and follow the MSL 4 condition, what does the MSL means? is it Material Safety Level? Has anything to
Electronics Forum | Thu Jan 03 08:01:23 EST 2002 | davef
In addition to a previous poster's comments, you many want to understand moisture sensitive components better. Start with: * J-STD-020 and J-STD-033. Download them here: http://www.jedec.org/download/default.cfm * �Moisture Sensitive Components� R
Electronics Forum | Thu Jan 03 22:39:37 EST 2002 | davef
For us, it depends on product volume: * Low volume: Tailor's scissors sharpened for the job. * Mid volume: Custom die used in a press. * High volume: We don't do this, but we'd have buy a singulation machine, er something like that. [Search the SMTne
Electronics Forum | Thu Jan 03 20:40:23 EST 2002 | Eliud Rivera
The actual water soluble process is killing us. We sent the cloose loop tanks for regenaration each two weeks. We spent too much money sending the tank overseas. Is there a company in PR that recycles this tanks. Maybe in Florida? What is the low
Electronics Forum | Fri Jan 04 15:06:07 EST 2002 | davef
Been rootin' through my card file. Other sources I'm aware of, but can not substantially comment on are: * DI water generators: Unit design 714.282.8100 fax8188 * Remco Engineering: modular ion exchange systems * Advanced Separation Technologies: co
Electronics Forum | Fri Jan 04 09:42:58 EST 2002 | gdstanton
First let's hear from those fellow SMTNets use MyData Placement equipment. Sencond, anyone interested in sharing MyData based package type data? We just bought a MY-15 and have very little package data available. It would be cool if we could get
