Electronics Forum | Tue Jun 25 12:10:10 EDT 2019 | slthomas
The profile (temperature curve) is absolutely a function of both top and bottom zone settings as well as conveyor speed, blower speed, etc.. Certainly when you perform profiling you have to consider both top and bottom heaters when you make adjust
Electronics Forum | Wed Dec 04 07:35:08 EST 2019 | proceng1
We also have a few customers that seem to buy the cheapest LEDs available and provide them for the build. We've had complete reels that had obviously been exposed and oxidized. You can try a solder with a more aggressive flux. How long is your pro
Electronics Forum | Thu Jul 23 13:23:45 EDT 2020 | bmalhi
Small components blown issue could be due to one of the below. - Process issue; Make sure solder paste is fresh, if flux is drying out it will not hold parts properly. Check downward pressure of Pick Place. SOT may have to be pushed a little harder i
Electronics Forum | Thu Jun 01 10:31:05 EDT 2023 | spoiltforchoice
In the market for a new printer; plenty of choices but what are peoples thoughts? We're talking low volume high(ish) mix, it will get an easy life, it needs no "speed" features or other high throughput support. Experiences on ease of use, issues, une
Electronics Forum | Fri Oct 20 08:31:18 EDT 2023 | laurence11
When comparing F1 AOI machines, the key differences lie in their specific models and features. The "YTV" you mentioned may refer to a specific F1 model, but without more information, I can't provide specific details on it. However, here are
Electronics Forum | Fri Aug 13 13:47:52 EDT 1999 | Brian Wycoff
| | | | | Hello | | | | | | | | | | Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening | | | | | 100 durometer
Electronics Forum | Fri Aug 13 13:50:53 EDT 1999 | Brian Wycoff
| | | | | | Hello | | | | | | | | | | | | Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening | | | | | | 100 du
Electronics Forum | Fri Jun 25 16:54:25 EDT 1999 | C.K.
| | | Dear John/Earl | | | | | | Thanks for your clarifications. To me also the problem does not seem to be linked with the PCB. The Pre heater temp. is set at | | | 450 degree C. We are using Alpha Aq. cleanable flux. Can you elaborate on the
Electronics Forum | Wed Jun 16 12:43:10 EDT 1999 | Brian
Cliff, I'm sending you by e-mail (don't think I can attach a graphics file here) the doc proof that the problem lies between Atlanta and Ft Lauderdale. This was an attempt to trace your routing. From Cyprus, it crossed the Atlantic by West Orange. U
Electronics Forum | Sat Jun 12 16:33:52 EDT 1999 | JohnW
| | Our company is experiencing cracked caps at our pick and place operations. The caps are being placed onto epoxy dots for subsequent wave solder operations. At present, be have set the pressure of the head at 2 in/lbs. This being down from manuf