Electronics Forum: help (Page 491 of 1174)

double sided reflow criteria

Electronics Forum | Mon Feb 03 18:37:28 EST 2003 | jonfox

Not to be off-topic, but push engineering for embedded passives and remove parts from the underside all together. Watch the material cost sky rocket, but watch the manufacturing cost sink and well as improve the production cycle by 50%. Sorry, I w

Plated through via's in pads.

Electronics Forum | Wed Feb 05 11:21:24 EST 2003 | pjc

First off, get them designed out. I had this problem once and filled them with SMD adhesive and cured prior to printing. We were careful to be sure the solder lands were clean of any adhesive prior to curing. It worked out very well and we did this p

Plated through via's in pads.

Electronics Forum | Mon Feb 10 15:39:20 EST 2003 | bpan

Thanks for all the info guys. Dont think that the problem is a thermal one and I believe the guys designing the board just need to design them out. I have directed the customers we get the boards from to read this posted question so that they could s

Settting up conveyors for a SMT line....

Electronics Forum | Wed Feb 12 14:33:09 EST 2003 | Ehess

We are in the process of settign up an SMT line with conveyors. When planning for a 4ft conveyor (or 2 or 3ft for that matter), how mush space should I set aside for this? My boss is telling me to leave 4'6" for a 4ft conveyor. I think this is too

Settting up conveyors for a SMT line....

Electronics Forum | Wed Feb 12 18:41:39 EST 2003 | russ

I'm with Mike G, We use a 1/4"(1/8" gap on both ends)! We process very short boards from time to time and any more space causes transfer errors. Also, the very short gap helps alot when lining them up. Russ

Hallo, Hallo!!! Is that my cell or is it yours?

Electronics Forum | Wed Feb 12 21:14:08 EST 2003 | davef

We allow people in our shop to take calls on their cell phones any time they get a call, thinking that in case of an emergency they should be able to respond to their family's need for help. We ask that people close their calls that do not require i

Best/Common Practice in Blank PCB QC

Electronics Forum | Fri Feb 21 10:00:38 EST 2003 | ghenning

I would appreciate any feedback that can be provided regarding best practices and common practices for control of incoming PCB blank quality. How common is sectioning and other sorts of analysis? Do these efforts result in real improvements in vendo

FDA Approval

Electronics Forum | Thu Feb 27 16:35:26 EST 2003 | MA/NY DDave

Hi Hey just found a guide to some of the members and companies in this field. If you haven't already found someone or two to call and ask for consultant prices to help you get FDA approval tell me where you live and I will pick two or three from thi

PCB Baking

Electronics Forum | Thu Feb 27 03:26:13 EST 2003 | damianlai

Hi, I would appreciate some advice / recomendations regarding conditioning of PCB's before use. Our standard PCB's are double sided and rigid multilayer FR4. We are currently baking everything over 3 months old for 2 hours at 125 degrees C. Is thi

smt counters

Electronics Forum | Thu Mar 06 07:40:42 EST 2003 | g hunter

hello, i wondering if anyone can help me with a problem we have. i'm looking to purchase a SMT counter. were looking for a moterised one with a empty pocket detection system, i have had one on load from a company already and it was a bit poor so any


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