Electronics Forum | Sat Oct 09 09:18:21 EDT 1999 | Dave F
| | | | Can anyone tell me the formula/method to determine | | | | the amount of weight that solder's surface tension can support. | | | | (ie: Maximum weight of components soldered onto a bottom side | | | | of a board during a top side reflow on a
Electronics Forum | Sun Oct 10 18:53:04 EDT 1999 | Dreamsniper
| | | | Is there an IPC Standard stating the max. number of times that a PCB can pass through a reflow or wavesolder machine without having solder mask breakdown. | | | | | | | | PCB is FR4 | | | | Solder Mask is LPI | | | | Reflow and W/S Profile =
Electronics Forum | Fri Aug 13 07:11:12 EDT 1999 | Earl Moon
Ladies and Gentlemen, As a newly appointed DFM/CE "guru" here, one of my responsibilities has become repair (of course). As I have some knowledge of BGA repair/rework using semi-automated equipment, it naturally follows I would hav tremendous insigh
Electronics Forum | Tue Jul 27 16:44:31 EDT 1999 | Earl Moon
| | | Presently protos of micro-bgas (80i/o) pitch .030/.031 | | | 12BGA per assembly | | | | | | The board is a (.062, 4 layers) FR-4 using Dry film | | | Pads .014inch | | | Vias within footprint .020inch | | | Vias to be filled by bottom side(sol
Electronics Forum | Tue Jul 27 17:23:45 EDT 1999 | M.L
| | | | Presently protos of micro-bgas (80i/o) pitch .030/.031 | | | | 12BGA per assembly | | | | | | | | The board is a (.062, 4 layers) FR-4 using Dry film | | | | Pads .014inch | | | | Vias within footprint .020inch | | | | Vias to be filled by b
Electronics Forum | Fri Jul 23 10:16:16 EDT 1999 | Boca
| | | Dear all | | | Please help me to know what kind of tests usually done after SMT Pick & place and reflow oven. | | | Our appliocation is Mainly fabrication of mother boards. | | | Thanks | | | | | In theory, ICT is the classical answer (In-Ci
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 | Thu Jun 24 19:14:44 EDT 1999 | Mike Konrad
Very good questions Bob� Given the fact that my company is a manufacturer of batch cleaning equipment, I will speak more in general terms rather than in specific terms. There are several criteria used in the evaluation of batch aqueous cleaning sys
