Electronics Forum | Mon Feb 09 20:06:15 EST 2009 | davef
Pallet fabricators are: * AGI; 177 Nick Fitcheard Rd NW, Huntsville, AL 35806; 256-858-3300 http://www.agicorp.com/ * Pentagon EMS; 10950 SW 5TH St, Suite 230, Beaverton, OR 97005; 503-924-2747 F503-924-2744 http://www.pentagon-ems.com * M&O Precis
Electronics Forum | Wed Oct 11 21:55:27 EDT 2017 | action_101
I've used plenty of weights in the wave solder process, but not in the SMT reflow process. Ask yourself some why's.... such as why is the part lifting at one end? (board bowing possibly), why? Not the correct tg material or issue with oven profile? W
Electronics Forum | Wed Apr 29 04:08:55 EDT 2020 | tomzhao2
PCB Electronics Ltd, a leading corporation focusing on one-stop service for PCB&PCBA ,has a management team of 15-year experience in EMS industry. Productivity: 2 layers to 32 layers, including HDI, flex-rigid boards etc. Application fields: C
Electronics Forum | Mon Dec 13 00:48:33 EST 1999 | armin
Hi All I have a 0.7 mm diameter hole for vias, what�s the minimum annular ring for this hole diameter? What�s the term unsupported and supported holes refer to in IPC-2221 9.1.2 Annular Ring Requirements? I have a proto-type PCB (designed by our R&
Electronics Forum | Tue Mar 16 14:05:04 EST 1999 | Steve Skinner
| Does anyone have any recommendations on spray fluxers? Are there major differences between the high priced ultrasonic machines to the low priced flux/air spraying machines? We are going to be spraying an OA flux with 11% solids content. Are there a
Electronics Forum | Mon Oct 15 13:13:17 EDT 2001 | MikeF
Adding to Dave's comments, suppliers of selective soldering machines include Air Vac and Wenesco. I've used both, to solder and de-solder larger thru hole parts, such as connectors and large IC's. They are best suited to lower volume applications, an
Electronics Forum | Mon Oct 15 13:13:43 EDT 2001 | MikeF
Adding to Dave's comments, suppliers of selective soldering machines include Air Vac and Wenesco. I've used both, to solder and de-solder larger thru hole parts, such as connectors and large IC's. They are best suited to lower volume applications, an
Electronics Forum | Fri Nov 10 17:44:48 EST 2000 | Dave F
In response to your questions: Is the embrittlement from excess gold in lead / tin solder connections bad? It can be vereeee bad. Does it affect all plating processes the same? Give us a break and read the SMTnet Archives, for instance: BGA prob
Electronics Forum | Tue Apr 04 07:46:03 EDT 2000 | Donnie
Neil, We currently use only visual inspection with a magnified lamp and actually brush the board after the wave process to help knock off any solder balls. You wanna use an ESD sensitive brush material. Camel hair is what we use. It works real wel
Electronics Forum | Fri Jun 09 15:46:34 EDT 2006 | samir
I say: �Wave flux needs to be heated to certain activation temps which won't be repeatedly achieved with a manual soldering process. Plus, you won't burn off any residual activator as you would if the board were immersed in a solder bath.� Muse say
