Electronics Forum | Mon Mar 01 22:37:01 EST 1999 | Dave F
| Hello! SMT professionals, | | I do not know if anyone posted this question before. | Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the hee
Electronics Forum | Mon Feb 22 19:22:40 EST 1999 | Steve Gregory
| 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
Electronics Forum | Tue Feb 23 14:21:17 EST 1999 | Mike McMonagle
| 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
Electronics Forum | Fri Feb 19 09:14:52 EST 1999 | Justin Medernach
| During inspection and test we find leads which do not get soldered. Some are because of insufficient paste, but with others everything looks right. This will only happen on 1 to 2 pins, and it is not isolated to a specific type of ic or location o
Electronics Forum | Mon Feb 08 17:11:04 EST 1999 | chris arnold
| I realize it's been discussed many times before. I need to know your opinions, experience, and knowledge concerning "today's"/latest and best pallet designs, suppliers, and methods for using them more effectively. Earl, Pallets can be extremely u
Electronics Forum | Thu Feb 04 10:00:26 EST 1999 | Terry Burnette
| I'd like to find some technical papers on the reliability of reworked BGAs. If you know of any, please let me know. | | I have a concern about this because our current rework process does not apply solder paste to the pads prior to placing the pa
Electronics Forum | Sun Jan 31 23:03:57 EST 1999 | Dennis O.
| | hi, | | i am working towards developing a no-clean process for a customer at contract manufacturing facility. the assemblies have gold fingers on them. these are masked to prevent from any damage to them during reflow soldering. the earlier pr
Electronics Forum | Wed Jan 20 10:03:10 EST 1999 | Earl Moon
| I need some opinions (And I know everybody has one). | I am mounting a board into a case, after mounting the board | I am loading it with stress in the middle causing it to bend around .030 inch. The board is 4" X 6" and is Bending in the 4" dire
Electronics Forum | Fri Jan 15 11:33:46 EST 1999 | Bob Willis
| Hello, | | We are qualifying new sources of PWB vendors. We've got the first lot of "produciton" boards in and we want to put them through the paces before turing the vendors on. | | So far, the tests I can think of performing, and that we have
Electronics Forum | Fri Jan 15 09:36:20 EST 1999 | Earl Moon
| Folk's, | | I'm looking for information of how long you cna store a gold finish PCB before building it. I know there are problems with the gold disappearing into the underlying nickle over time / temperature etc but exactly how long do you have be
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