Electronics Forum | Sun May 30 09:35:27 EDT 2004 | davef
Sure, I'd expect your PCB fab has given you a information sheet on handling, storage, and whatnot, including recommended temporary solder masks. The cats & kitties in the stockroom are the first people to start your search. It's probably squirreled
Electronics Forum | Wed Apr 21 17:27:27 EDT 2004 | russ
We always use the regular production reflow profile when we use this method. Since you don't want to do that, All that is required is to ramp the part up to temp to get the balls to melt. If you don't exceed 2C per sec. in a ramp you will be fine.
Electronics Forum | Wed Apr 21 15:28:02 EDT 2004 | markhoch
I have a new customer who is recommending a Sulfamate Nickel Finish for his boards. I'm not really familiar with this process. Is anybody else? How does it differ from electroless nickel? Can a standard NC solder paste cut the mustard with this stuff
Electronics Forum | Fri Apr 23 07:50:50 EDT 2004 | smtpro
We have switched over form Indium's nc-smq92 to nc-smq92j and are experiencing a ton of solder balls. Even if the print is dead on we still seem to be getting them. We never seemed to have this problem with old paste unless the print was way off. Is
Electronics Forum | Wed May 12 08:35:20 EDT 2004 | solderpro
yes this paste is a pain in the paste.... there are very few reasons for solderballs, component to pad ratio and placement.... solder paste control, using a mixer, not hand mixing, checking viscosity and temp..... or simply and bad profile and your
Electronics Forum | Mon Apr 26 08:15:37 EDT 2004 | pjc
MPM uses a one-print-Mylar system, as do other printer mfrs. In this system there is a Mylar sheet attached to a frame that is secured over the printer table with the board on it. You print onto the Mylar. The table X-Y-theta manual adjustments are u
Electronics Forum | Fri Apr 30 13:32:42 EDT 2004 | Mike
If you had a blank check, what would the ideal/dream SMT line look like? I would like to get an idea of what are the best equipment models out there. I have not been able to go to APEX and I am not sure what new stuff is out there. Basic configur
Electronics Forum | Wed May 12 12:22:38 EDT 2004 | solderpro
I agree with the guy about cars, boats, ect... ok, I like as some have said without a doubt, DEK top of the line.... pick and place, love siemens but software is not user friendly, myself, JUKI all the way, great equipment, great software, that mean
Electronics Forum | Wed Jun 02 05:40:35 EDT 2004 | johnwnz
Is there not an issue with reflowign the SAC ball's in term's of drivign up the lead contect in a lead free joint that increases the risk of failure in them? certainly dramatically increases voiding... have some pictures of soem that a customer tried
Electronics Forum | Tue May 11 15:52:03 EDT 2004 | Erhan
It's been 10 years since I started to use this editing method but never knew that it was called wendy-house style. :-) This is most probably the answer you're looking for if you're only having problems around the 1206 types. For QFPs, I used to redu
