Electronics Forum: double and sided and vs and single and sided (Page 1 of 2)

Pick and Place vs CAD File

Electronics Forum | Mon Sep 25 08:24:25 EDT 2017 | directx995

At the moment we do it like this: We get .csv or .txt pick and place file and .csv or excel bom file. Then I verify every single placement manualy with BOM and delete placements that are not listed on BOM. (Yes, you are right, I do it for 30 placeme

Immersion gold and BGAs

Electronics Forum | Fri Aug 26 09:57:21 EDT 2005 | russ

The Immersion gold is not a problem with BGAs specifically but "black pad" which can be present anywhere. The unfortunate thing with BGAs is you cannot see it. Personally I hate white tin. It is okay for single sided boards running no-clean, but c

Re: SMT Pick and Place

Electronics Forum | Mon Jun 01 19:04:45 EDT 1998 | Chris

I run about forty different boards ranging from single to double sided & from 0603 to 324 PBGA. 2> The placement rate is around your spec. 3> And depending on the table arrangement you can get up to & above your feeder needs including several soic vi

Pick and Place Operation-Support Costs

Electronics Forum | Thu Jun 10 10:48:49 EDT 2004 | Jon W.

Dr. Lou, Your first question is influenced by many variables. New equipment will have the first year free parts, labor and service. You may discuss a long term at time of purchase. Older equipment may (depending on maintenance) have a higher chance

Re: BGAs and vapor phase

Electronics Forum | Mon Jul 19 11:11:18 EDT 1999 | Wolfgang Busko

| Perhaps a little hard to find but is there anyone who uses a vapor phase process to solder populated card with BGAs. I am interested in the success rate of such a process. It is obvious that the throughput is reduce vs a convection oven but still t

MPM Accuflex questions and issues

Electronics Forum | Thu Feb 15 13:46:16 EST 2018 | aemery

Griinder, Maybe it's me, but I think what you might be saying here is that you see a reflected image of the PCB or Stencil when you and teaching the fiducials and it is interfering with the teaching routine, is that correct? If this is true it is c

Cracking Capacitors and Solder Balls

Electronics Forum | Mon Jun 08 14:19:30 EDT 1998 | Gary Simbulan

Earl, et al, Boy things get old and cold around here fast. I promised more detail on my capactior problem and I thought I could drop something completely different in the same message and tell a tale of solder balls. First the caps. We still have

Selective soldering pallets and solder balls

Electronics Forum | Fri Dec 06 18:13:15 EST 2002 | slthomas

We only have solder balling problems in the interface of the pcb with the selective soldering pallet. All other boards (single, and double sided glue and waved alike) are fine, so I'm not thinking this is going to follow the normal path for resoluti

Foam fluxer maintenance, storage and cleaning

Electronics Forum | Mon Nov 09 09:44:22 EST 2015 | davef

Purpose. This describes setting-up a wave soldering system set-up for a new assembly design or checking a wave solder machine operation with a test board. Applicability. To be used for new design printed circuit assembles and during machine accept

Re: Cracking Capacitors and Solder Balls

Electronics Forum | Tue Jun 16 15:01:58 EDT 1998 | Gary Simbulan

There are some common reason for capacitor cracking on my web page if you want to have a look. The document can be downloaded for your reference. | Earl, et al, | Boy things get old and cold around here fast. I promised more detail on my capactior

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