Electronics Forum: after (Page 221 of 656)

Flux residue effects on circuit performance?

Electronics Forum | Mon Apr 29 04:33:05 EDT 2002 | ianchan

You can try using the brand-solvent "Genesolv 2004" in conjunction with a degreaser machine(source for own machine type?). this all helps to clean off the NC flux. we used it all integrated together, to clean a satellite modular card. reason we ha

Quad Machines? Good Points / Bad Points

Electronics Forum | Mon Jan 27 13:59:13 EST 2003 | ztech

The previous entry is a very good point. After dealing with quad/tyco I have such a horrible taste in my mouth from thier lack of professionalism and dishonesty, that I wouldn't buy a tyco product if they paid me to take it. If I were a betting man,

Agilis Feeders

Electronics Forum | Mon Apr 29 17:19:34 EDT 2002 | Jimmy

The Agilis feeders perform as advertised after having them in use for several months. They significantly reduce the time it takes to load and unload feeders and don't require maintenance and calibration (unlike traditional feeders and the older Mydat

double side reflow soldering

Electronics Forum | Tue May 07 22:25:15 EDT 2002 | L_ch

Hello, As you know for the double side assembly PCBs, we normally first place the bottom side, then place top side after reflow soldering of bottom side. are there any other considerations for the sequence of reflow soldering ( bottoms side first, to

Micro Leadless Frame - solder wetting control

Electronics Forum | Thu May 09 18:06:42 EDT 2002 | bcceng

janchan, don't know how many LGA's/LCC/BCC's you are placing but a short term solution that I can recommend is the application of solder bumps to the component and than place it after board has gone through reflow or even at the same time. Our compa

Inventory control of SMT parts

Electronics Forum | Thu May 09 11:12:00 EDT 2002 | pjc

Mydata has a software system that tracks component batch codes to production batch codes and even to serialized PCBs for military applications. This is done via bar-coding or manual data entry. The system also tracks component usage and can back-flus

Calculating PCB surface area

Electronics Forum | Tue May 14 13:19:23 EDT 2002 | stefwitt

Claude is right, however, this may work: Dip the empty board in paint and let the access paint drip off. Measure the volume of the paint before and after. Dip a populated board and measure how much more paint was required in percent. Measure the surf

Machine Utilization

Electronics Forum | Sat Jun 15 08:28:51 EDT 2002 | Daan Terstegge

I'm sure that Ken has commercial goals, but after reading his whitepaper I'm sure that many manufacturers could benefit from it. It's just to easy for a management to save costs on feeders, without really having an idea of how it affects the amount

Solder Balls in Vias

Electronics Forum | Tue Jun 04 12:26:40 EDT 2002 | Hussman69

If you have solder balls in vias on the "component side" it probably is your wave solder process. Most waves have an option that is designed to make sure your surface mount parts solder - but if turned up too high, can actually push solder up throug

pasteprinting D.O.E.

Electronics Forum | Tue Jun 04 18:30:49 EDT 2002 | arzu

We want to perform a "design of experiments" session to determine the optimum settings for our pasteprinter.We will design a stencil with decreasing aperture-sizes to make it measurable where the printing stops. The result should be a measureable pri


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