Electronics Forum: much (Page 396 of 627)

bulk feeding chips

Electronics Forum | Mon Feb 03 16:56:41 EST 2003 | jonfox

We are currently NOT using bulk, even though we looked into as a means of reducing machine time and component cost. Unfortunately, since bulk cassettes did NOT take the industry by storm as it was predicted years ago, we were stuck with long lead ti

bulk feeding chips

Electronics Forum | Thu Feb 20 12:59:29 EST 2003 | gregp

Claude, I know alot of equipment manufacturers that would like to talk to you about replacing all of your chipshooters! Of course, this will never happen. There probably won't be any sold until all of the used chipshooters are absorbed from the use

Plated through via's in pads.

Electronics Forum | Thu Feb 06 14:47:50 EST 2003 | MA/NY DDave

Hi "some customers/designers want to have via holes to be present in the PCB pad, due to some belief that it helps in heat dissipation. " As I think about this I don't know exactly why they would be concerned. I can imagine in some exotic products

Nitrogen wave soldering

Electronics Forum | Sat Feb 15 15:39:53 EST 2003 | Joe

I have the identical machine and setup as you with the same issue(s). I looked at setting up for N2 but am choosing to retrofit to a standard lambda nozzle setup. If you are soldering bottom side SMT parts or other challenging assemblies, N2 may ma

What are decoupling capacitors?

Electronics Forum | Tue Mar 04 13:27:39 EST 2003 | MA/NY DDave

Hi Wow Genny, I don't think I could have given so much detail so fast. I have designed some high RF test designs for testing purposes to pass only the High Frequency, yet I didn't want to muddy the water with this other side. Now you did it well a

SMT

Electronics Forum | Wed Mar 05 05:29:49 EST 2003 | Matherat

Our company does not assemble boards but our customers do and 2 side smd with through hole is pretty common in our experiences.Our customers usually have already decided to glue the bottom side components and fuse them during the wave solder process.

Tact Time Estimates

Electronics Forum | Mon Mar 10 19:01:32 EST 2003 | Stephen

This touches on one of my pet peeves. Management types demand something, that is not feasible or practicle. So the manufacturers put something together to pass off as what was asked for. In this case a way to put hard numbers on what a machine can

TOMBSTONE DEFECTS

Electronics Forum | Fri Mar 14 09:23:52 EST 2003 | MA/NY DDave

Hire a Consultant to look at everything (Again lots to be looked at and worked... (Starting right at Board Design 2>Buy or borrow some of the Books on SMT and read about all the potential contributors. Yes Uneven or Goofed Up Oven Reflow as noted

Tantalum caps causing misaligned parts

Electronics Forum | Fri Mar 21 09:08:53 EST 2003 | mantis

Hi all, I have a strange problem,while building a large 15x15inch 3.5mm thick Pcb.During topside reflow i am experiencing some misaligned parts and even bridging on a bga that are sitting very close to a D size tantalum cap.The strange thing is that

BGA Rework

Electronics Forum | Thu Apr 10 10:12:33 EDT 2003 | Claude_Couture

Chrissie, You have my deepest sympathies! But I'm very curious about your business takling a space contract. The quantity of boards that you mentioned hints at a GPS satellite systems, am I correct? In any space quality manufacturing, every step of


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