Electronics Forum | Fri May 21 12:25:14 EDT 1999 | Dave F
| Has anyone had any experience or data using vibration during the reflow process. | We introduced a vibration device attached to the fixed rail on a Vitronics reflow oven. The reason was to prevent skewing on large PLCC devices. The process worked v
Electronics Forum | Tue May 25 09:19:00 EDT 1999 | Ricardo Lopes
| | Has anyone had any experience or data using vibration during the reflow process. | | We introduced a vibration device attached to the fixed rail on a Vitronics reflow oven. The reason was to prevent skewing on large PLCC devices. The process work
Electronics Forum | Fri Apr 23 16:19:17 EDT 1999 | Todd
We are just starting to manufacture a PCB with a .039" fine-line PBGA. We are currently seeing voids, mainly in the center, that are as much as 45%. We also intermittently see the corner balls of the PBGA smaller than the center balls. We are using a
Electronics Forum | Tue Mar 16 17:05:14 EST 1999 | Jeff Dahlin
We are having a small number (~2%) of our boards pass our manufacturing diagnostics, fail once they reach the customer, fail when they get back to us and then start working again after handling them for a short time. We have eliminated a lot of item
Electronics Forum | Wed Mar 17 09:32:35 EST 1999 | Dave F
| We are having a small number (~2%) of our boards pass our manufacturing diagnostics, fail once they reach the customer, fail when they get back to us and then start working again after handling them for a short time. We have eliminated a lot of it
Electronics Forum | Sat Mar 13 10:32:16 EST 1999 | Steve Gregory
Good morning fellow SMTnetters, Upon opening my email this morning, I had two emails from the following email address: evcons@ms3.hinet.net with "Evergreen PCB" in the subject box and it had a file attachment called Happy99.exe...I suppose whoe
Electronics Forum | Fri Feb 26 08:23:57 EST 1999 | Cunli
Dave, Thank you for pointing this out to all, including us at SMTnet. We have thought about using different phrases to label these three listing options. How to you like: list thread by beginning date; list message by date; list message by autho
Electronics Forum | Wed Feb 24 13:05:04 EST 1999 | Mike Larsen
| I am profiling a BGA for the first time and I am seeing temperature flucuations on the ramp and cool down from the thermocouple I have placed through the pcb and under the component. I am using a 5 zone convection oven.Any suggestions on the plobl
Electronics Forum | Thu Feb 25 10:17:44 EST 1999 | Joe Cameron
I second Dave's encouragement to use the archives. It's a wealth of info and the search engine usually get's me what I want the first time. By the way, Richard, are you soldering your thermocouple to a ball on the BGA with hi-temp solder? It'd hel
Electronics Forum | Mon Feb 22 20:52:22 EST 1999 | Dave F
| we are acompany under construction for producing assembled PCB for computer manufacturing .as we are one of the first in Egypt in the field. | | Hence if some body can tell us about what we might need in the manual insersion line ( production