Electronics Forum: middle (Page 26 of 49)

Re: Choosing a spray fluxer.

Electronics Forum | Thu Apr 08 13:24:36 EDT 1999 | ADRIANO FERNANDES

| | I am getting ready to purchase a spray fluxing system for a no-clean process. I have narrowed it down to the Nordson or Dover system. Does anyone have any experience with either. If so can you relate with me. I am a little leary of the Nordso

Making a BGA stand up

Electronics Forum | Thu Jan 16 03:43:42 EST 2003 | johnw

1st off for the forum folk, I don't like the fact that the new system only let's you see the posting your replying too, I'd rather be able to see the thread..... Anyhoo, why this alloy?, it's because it's the device manufacturers preferred and the c

Wave Soldering Upflow

Electronics Forum | Tue Aug 05 18:02:05 EDT 2003 | MikeF

Check the areas that are getting solder on the top side. If you have internal ground planes, and the ground plane pth's are not getting solder on top, and signal pth's are, it's a heat problem. If the ground planes are in the middle of the board yo

wave solder bean bags

Electronics Forum | Wed Aug 09 09:25:57 EDT 2006 | Mike F

Am I missing something here? I usually put some type of stiffener or support on the leading edge to make sure the PWB doesn't sag in the middle from the preheat. If I had to add a bean bag with shotgun pellets or BB's I would have boards falling out

estimate solder thickness

Electronics Forum | Tue Jun 07 08:31:57 EDT 2011 | bootstrap

I am building a rugged digital video camera product that essentially is just a sandwitch of 3 parts: #1: front piece is machined aluminum with C-mount thread #2: middle piece is 1/16" printed circuit board #3: back piece is machined aluminum The

Delta T

Electronics Forum | Tue May 21 09:06:03 EDT 2013 | hussman

Delta-T in reflow generally means 2 things - difference in temperature on a product or difference in temperature of your oven. Delta-T on a product is what are your hottest and coolest areas on the board. Larger parts toward the middle of the boar

Re: AT Expo Rosemont

Electronics Forum | Tue Oct 17 10:53:10 EDT 2000 | Rick James

Regarding your comments about the EASi Line - a robotic workcell was planned but the company determined they were spread too thin to support the effort about 8 weeks before the show. It was too late for a replacement. The manual assembly operation

Re: OnBoard Forum

Electronics Forum | Tue Jun 13 14:14:40 EDT 2000 | Deon Nungaray

Dear Mr. Cunli, I think it would be useful to have the ability to access the archives easily. However, I do have a comment on your home page format. In the past the SMT Forum entries were viewed on the top middle upper section of your home page and

Quad Laurier Die Feeder?

Electronics Forum | Thu Feb 08 07:57:33 EST 2001 | CAL

DAVE F. Far be it for me to correct you, it is not my place. I just want to Calibrate your GPS a little. The short and sweet version- Quad was to sell Samsung machines under a private label. All was ok until Quad released a machine to compete with Sa

Insufficient Heel Fillets on plastic 240 pin QFPs

Electronics Forum | Tue Mar 27 09:06:10 EST 2001 | dblsixes

We have tried to adjust the upper and lower heaters. We have a dillema in this area however. The power supply portion of the assembly has thermal vias in the solder pads underneath larger pads. We have a problem with solder wicking through these h


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