Electronics Forum | Tue Feb 15 06:12:20 EST 2000 | Dane Stokes
Also in some instances a 10% decrease on glue size would be needed for the smaller S.O.T. sizes out there. If you are dealing with a good company to make your screen they should send you back a preliminary art work file on the Screen to be made so yo
Electronics Forum | Wed Feb 16 21:05:06 EST 2000 | sin
Why don't you have stencil house make a selective wave fixture for your product so that you can avoid the glue problem. If it's a must for your process to have glue, you just add extra work and glue tended to contaminate. Just a suggestion..if you
Electronics Forum | Fri Feb 11 16:34:01 EST 2000 | Chris McDonald
Does anybody have a source for jigs/tanks for a manual dip operation? We are stuck conformally coating PCBs manualy and the volumes do not justify us buying a 100k automated machine. there for we have to manually dip the pcb in a silicon based coatin
Electronics Forum | Mon Feb 14 12:28:04 EST 2000 | Dave F
Chris: I can't a semi-auto dip tank being any faster than manually dipping. Better control - yes. Less messy - yes. Other stuff Graham mentioned - yes. Have you discussed your goals with some of the used equipment folks listed in the archives?
Electronics Forum | Fri Feb 11 16:15:05 EST 2000 | Chris McDonald
You can get a better Kapton tape (you must be using the cheap stuff) that leaves no residue. If that fails then you can get edge maskers that slide overtop of the finger and they are reusable. Or you could get a solder pallet made for the assemblies
Electronics Forum | Fri Feb 11 12:32:53 EST 2000 | Dennis _F
We are currently reviewing two machines MPM ultraprint 1500 and the DEK 265 Infinity We have been to the MPM plant and saw the 1500 but all of the DEK units localy are 5 to 10 year old units. If anyone has had any experence using these machines I w
Electronics Forum | Fri Feb 11 14:42:27 EST 2000 | Dean
I currently use MPM 500, Ultraprint 2000 and Ultraprint 3050 and SPM-AV (10 or so total MPM printers). I have several DEKs but I am just not compelled to associate my name with... I would stake my reputation on my MPM class printers. They have se
Electronics Forum | Fri Feb 11 08:51:45 EST 2000 | HMAL
Dear Masdi, Perhaps you should check again your screen print process. Small amounts of solder paste under stencil can cause your problems. This paste is from previous printed pcb. When printing next pcb this paste attachs to places that it doesn't
Electronics Forum | Thu Feb 10 00:08:46 EST 2000 | Hon Choi
Dear all, We haven't been using CPH (chips per hour) as an index of our production capability, but it seems more and more attractive as a basis by which we can compare the capability of different plants producing different products. Are there any o
Electronics Forum | Fri Feb 11 05:44:08 EST 2000 | Dean
Sounds like black pad to me. I just suffered this last week. Track your fab lot codes. Just in case. I processed 1000 fabs of 2 lot codes through 1 line (also WS609). 1 lot code failed with black pad the other did not. With one common mfg. proc
