Electronics Forum: used (Page 1159 of 2491)

Ways to control SMT gap to PCB

Electronics Forum | Thu Dec 07 13:51:59 EST 2006 | ganoi

I need advices as to how a gap between the bottom of an LED (1209-package) and the PCB can be controlled on a small rigid-flex PCBA? The problem that we experience is due to tight tolerance in the design of our molded housing in which this PCBA is as

Lead Free Usage

Electronics Forum | Mon Dec 11 08:49:03 EST 2006 | billyd

All: Good morning. I'm writing this morning trying to find out what, right now, is the most used solder alloy out there, industry wide, for lead free applications. I'm talking strictly for reflow, not wave. I have to assume SAC305 is by fa

Streaking at Screen Printing

Electronics Forum | Sun Dec 17 14:49:57 EST 2006 | kvanzill

Well, We have several lines some products run Kester 256 and others run the Timura. I have changed the product to print on another printer and it follows. We have several products that use the same paste and similiar board design that has a problem

Wave flux and profiling

Electronics Forum | Fri Dec 15 18:36:46 EST 2006 | Grant

Hi, I have noticed we are getting residue on our wave pcb's and it's worse with lead free, since we changed to the flux we are using. We are currently using Avantec VOC Free flux model Ecofree 303. It looks like it's made in Malaysia. Does anyone h

Tooling and Stencil Design

Electronics Forum | Sat Dec 16 13:18:47 EST 2006 | Ola

Why not? If You think it has a bussiness case so go for it. We are currently using a firm that has 24h delivery time if neccesary (we need to order before 9'clock in the morning)and we once in a while use this for some prototypes. Their regular shipm

Lead Free Squirt Bottles

Electronics Forum | Tue Dec 19 12:14:47 EST 2006 | realchunks

Hi Darby, No, I'm not cutting on the robot guys. I actually went thru their site and found it interesting. They truely use their knowledge and creativity, which is a rare thing to find these days. That, coupled with their common sense and resourc

glue dot size

Electronics Forum | Wed Dec 20 04:08:09 EST 2006 | ungun

Sorry for the late reply. I use glue dispenser machine juki kd-775. It have dispensing diameter confirmation unit, but dispensing test tape can be hold for 2 to 3 days a roll if the output 300 pcs pcb with average glue point 100 per peace. Beside, i

Marking on shrink tubing

Electronics Forum | Thu Dec 21 10:20:44 EST 2006 | Mike F

I realize this is not a board assembly question, but I'm hoping some of the people that read this forum can offer some suggestions for me to evaluate. I need a way to mark wire numbers on shrink sleeving that does not have the name Brady anywhere i

Marking on shrink tubing

Electronics Forum | Wed Jan 03 11:00:08 EST 2007 | mIKE f

We use the Brady parts, from the PS-094 up thru the PS-500 size, on a Brady 300MVP printer. We also use that printer for marking Brady polyimide labels. The problem is when we try to print on the smaller markers the printing keeps wandering off the

Yield on 0402 SMT Printed Circuit Board Assemblies

Electronics Forum | Thu Jan 04 20:31:21 EST 2007 | Ben_T

Have you thought about an AOI system? With the system we have where I work, I'm able to run queries that'll tell me DPMO, yield, and pass/fail rates on a board level, part level, and opportunity level. Furthermore, this data can be broken down to see


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