Electronics Forum | Wed Feb 01 13:46:05 EST 2006 | Chunks
Sounds like a epididymis! It depends on your paste chemistry. You can't just slap any old saponifier in there. Most water based cleaners evaporate the water and you have to remove the dried paste. It's a bit messy, maybe that's why your's is over
Electronics Forum | Wed Feb 01 12:20:16 EST 2006 | cvoyles
Hi Bruno, I am an equipment reseller in business since 1994. I have a Smart Sonic MG3000 ultra sonic stencil cleaner in inventory. It is a stainless steel model with Delta Sonics brand ultra sonic generator. It is the guillotine type that raises a
Electronics Forum | Mon Jun 08 14:19:30 EDT 1998 | Gary Simbulan
Earl, et al, Boy things get old and cold around here fast. I promised more detail on my capactior problem and I thought I could drop something completely different in the same message and tell a tale of solder balls. First the caps. We still have
Electronics Forum | Wed Mar 24 23:12:48 EDT 2021 | grahamcooper22
0.66 area aspect ratio...so for example...if the device is 0.5mm pitch QFP, the pcb pad may be 12 thou wide..make the aperture 9 to 10 thou wide...and reduce it's length by 10 % overall compared to the pcb pad.... Depending on device pitch, select ap
Electronics Forum | Tue Nov 09 17:12:38 EST 1999 | Dave F
Steve: Addressing your points: 1 FINE PITCH APERTURES Electropolishing Laser Cut Stencils: Laser cut should not requiring polishing. Geesh, how much money do you have for stencils? ;-) Oval Shaped Apertures: Pass. What do you expect to gain f
Electronics Forum | Wed Aug 27 13:11:19 EDT 2008 | dwelch123
We roll ours up, fingers and all, and soak them for about an hour in a solution of water and DOMINATE (heavy duty degreaser) you can order from Grainger. They come out looking brand new every time!
Electronics Forum | Tue Jan 08 20:46:09 EST 2013 | davef
Look here: http://www.ipc.org/html/IPC-7526.pdf BR, davef
Electronics Forum | Mon Aug 14 05:45:16 EDT 2023 | dimamalin
First, this is the result of bad printer setup. Adjust knife pressure, PCB gap, separation speed, tooling, and stencil cleaning. Pay attention to the coating of contacts pad and height of solder mask of PCB.
Electronics Forum | Mon Aug 14 12:06:18 EDT 2023 | calebcsmt
Please elaborate, as I have already tried to rule out printer setup. 0 contact of course, ive tried a multitude of pressures, separation speeds, cleaning frequency. Moreover, i use these settings for similar stencils and have absolutely no issue
Electronics Forum | Wed Aug 21 13:28:20 EDT 2019 | ameenullakhan
And what is the solder paste selection recommendation for the same. 1. Water soluble ( organic based flux solder based ) 2. No clean ( rosin or resin based solder paste ) customer is suggesting water soluble chemistry , which is having lot hot an
