Electronics Forum | Mon Aug 30 02:41:22 EDT 1999 | Dreamsniper
Planning to evaluate the above process... Can anyone can give me some tips/infos on the above.... e.g. stencil aperture design, aperture ratio, common problems and solutions they encountered on the above process, is the profile different from an ordi
Electronics Forum | Thu Aug 05 11:51:44 EDT 1999 | Wolfgang Busko
| | | | | | | | | | | | Hello, | | | If you are using no-clean and they are entrapped in the flux it is also IPC accepted but i havent found a customer yet who agrees with that. Im sure you have checked your profile. I had the same problem with chi
Electronics Forum | Mon Jun 21 10:49:23 EDT 1999 | Cunli Jia
| exactly how do you access posted library articles? Are you refering to the newest posting by Chrys Shea on wave soldering? Looks like she did not successfully post the article. We have emailed her on this, so hopefully you will be able to access
Electronics Forum | Tue Jun 01 12:57:52 EDT 1999 | John Sims
I need to perform shear tests on components that have been glued prior to wave soldering. Can any one recommend a shear tester and some standardized info on testing? We have had problems with poor glue bonds and would like to implement a test metho
Electronics Forum | Thu Apr 01 10:49:14 EST 1999 | AF Ng
| Has anyone heard of a problem with catastrophic failure of | large value (200uF) solid tantulum capacitors that have been | exsposed to high humdity. | I suppose that with water moisture seep in the capacitor, the risk is very high that abrupt o
Electronics Forum | Thu Apr 01 14:00:17 EST 1999 | Ron Beasley
| | Has anyone heard of a problem with catastrophic failure of | | large value (200uF) solid tantulum capacitors that have been | | exsposed to high humdity. | | | I suppose that with water moisture seep in the capacitor, the risk is very high tha
Electronics Forum | Mon Feb 22 16:49:38 EST 1999 | C.K.
A rash of new products here at my company have designs with multi-pin connectors 90 out-of-phase (orientation)wiht respect to wave direction, which has lead to massive bridging (shorts) problems.... Does anyone still use the 45 Degree Pallet (a pal
Electronics Forum | Mon Mar 01 16:11:24 EST 1999 | Innovative Concepts
For as much as you can minimize bridging in these condition by changing board orientation, the only way to eliminate them may be to add debridging airknife tech to your system, or purchase a system that is fitted with this technology. We have been t
Electronics Forum | Thu Nov 19 09:52:34 EST 1998 | Hamilton Correa Junior
We have some PCB�s in our warehouse in Manaus - Brazil. They are stored for more than 2 years , in a condition of 25 degrees centigrades and a humidity ranging from 60% to 90%. Do these conditions cause the PCB�s to deteriorate over time? If so , wha
Electronics Forum | Thu Oct 15 10:26:13 EDT 1998 | Dave Celestian
I have a problem with measling on our PCB's. We saw it on our FR4 PCB's at final assembly yesterday. Is this a defect from the board vendor or something we did in our assembly process when building the PCA's (thru hole). Could the wave solder mach
