Electronics Forum | Wed Aug 27 14:41:49 EDT 2003 | Stephen
Have you checked the temperature profile at the balls? Just because a recipe works "fine most of the time" does not mean it is optimum. Do you have a machine that can measure co-planarity? If I get time I plan on using the MPA to look at co-plana
Electronics Forum | Fri May 28 12:51:05 EDT 2021 | cbart
1. If a populated PCB is put on a ESD safe Rack, is it able to be placed on a Plastic Shelf? = I would say no, here is why: if there is an esd event on the rack/tray where will it go with no path to ground? being the rack is a generator you are going
Electronics Forum | Tue Jul 06 12:42:38 EDT 1999 | JohnW
| | We are looking for some subcontractors to do surface mount | | technology boards for us. Is there anything I should pay specific | | attention when I visit the subcontractor's site? | | Thank you for any advice | | | Wolfgang has a good poi
Electronics Forum | Tue Jul 06 14:28:26 EDT 1999 | Earl Moon
| | | We are looking for some subcontractors to do surface mount | | | technology boards for us. Is there anything I should pay specific | | | attention when I visit the subcontractor's site? | | | Thank you for any advice | | | | | Wolfgang ha
Electronics Forum | Wed Jul 07 22:12:26 EDT 1999 | Dreamsniper
| | | | We are looking for some subcontractors to do surface mount | | | | technology boards for us. Is there anything I should pay specific | | | | attention when I visit the subcontractor's site? | | | | Thank you for any advice | | | | | | |
Electronics Forum | Fri May 15 18:09:00 EDT 1998 | Earl Moon
| | | We understand that testing for ionic contamination and surface insulation resistance measure different properties. We assemble printed circuit boards for other companies. We will not get combs on 90% of the boards that we assemble. | | | We h
Electronics Forum | Sun May 23 15:12:59 EDT 1999 | JohnW
| We are running a number of boards with 8-10 25 mil PQFPs on board. Our process is mature with at least 3 years experiance and statistically few opens on the QFPs. Our beloved purchasing department has chased the almighty $ and changed FAB vendor
Electronics Forum | Wed May 27 08:46:25 EDT 1998 | Dave F
| | | | We understand that testing for ionic contamination and surface insulation resistance measure different properties. We assemble printed circuit boards for other companies. We will not get combs on 90% of the boards that we assemble. | | | |
Electronics Forum | Wed May 27 12:32:15 EDT 1998 | Earl Moon
| | | | | We understand that testing for ionic contamination and surface insulation resistance measure different properties. We assemble printed circuit boards for other companies. We will not get combs on 90% of the boards that we assemble. | | |
