Electronics Forum | Wed Aug 19 05:00:56 EDT 1998 | Tom Blum
Hi there, I'm actually facing a lot of trouble with PCB's presenting up to 3mm of bow /twist at reception i.e. before assembly. The PCB size is 220 by 230mm. The boards are to be assembeled SMD double sides with 05.mm pitch on both sides. In order to
Electronics Forum | Tue Aug 18 10:18:22 EDT 1998 | Dave Hulbert
I have a question on tenting of vias on PWB's. I have designed a 6 >layer, military, mixed components (all on top side), LPI soldermask >board which will be run over the wave. I was planning on tenting vias >but did not specifically specify that on f
Electronics Forum | Mon Aug 31 14:03:41 EDT 1998 | Bill Childs
I have a question on tenting of vias on PWB's. I have designed a 6 | >layer, military, mixed components (all on top side), LPI soldermask | >board which will be run over the wave. I was planning on tenting vias | >but did not specifically specify tha
Electronics Forum | Mon Aug 17 21:22:55 EDT 1998 | Brian S. Bentzen
I don't know a lot about the WEB, my company's interface, or the differences between various browsers and versions. I do know that since your change over my response has gotten so slow that I no longer can spare the time to read the forum. Only occ
Electronics Forum | Tue Aug 18 06:56:02 EDT 1998 | Wayne Bracy
| Does anyone have any recommendations for SMT Adhesive and Solder Paste Cleaning Systems? We are looking for a complete system of Chemical, Equipment, etc... Val: You may want to take a look at Austin American Technologies. AAT has several syste
Electronics Forum | Mon Aug 17 19:43:43 EDT 1998 | Bill Schreiber
Smart Sonic has a new Model 2003 Stencil Cleaner that is designed to clean SMD adhesives, solder paste and post solder flux residue from wave solder pallets, oven air amplifiers, etc. all in the same system at the same time with the same chemistry. C
Electronics Forum | Thu Aug 20 09:32:28 EDT 1998 | JUSTIN MEDERNACH
| Steve: | Take a look at the attached url. As with all testing systems, tooling / fixturing is costly. But, not as bad as a bunch of "Bed of Nails" test fixtures. | Glad you had one of those great weekends, had to spend mine fishing,, again ,, Ca
Electronics Forum | Fri Aug 14 14:09:51 EDT 1998 | Manny Negron
You guys have made a wonderful improvement to the SMTNet. Things I like: 1 Speed speed speed 2 Faster response time when posting a response. In the past I kept "pounding" the post button, trying to get a window for it to take. 3 Search of archived me
Electronics Forum | Sat Aug 15 13:26:05 EDT 1998 | Bob Willis
| Electrical Eng. is looking for 5 micrograms per sq centimeter. After the board has been cleaned. Is this possible on a fully assembled bd? The European standard often quoted is 1.5 mg/cm which ia achievable on a board assembly please remember one
Electronics Forum | Fri Aug 14 09:37:36 EDT 1998 | Earl Moon
| Where can I find a spec to put on my fab drawing, to call out the cleanliness of the board, before I recieve it. These boards will require a tight spec after they are assembled, so I want to know that they are clean when I get them. Any suggestions
