Electronics Forum | Wed Feb 07 23:30:13 EST 2007 | KEN
I have a customer who runs A-D applications with 5GHz analog and it is 100% no clean. The only answer that will be acceptable is what works for your circuit design.
Electronics Forum | Sat Feb 05 09:08:18 EST 2000 | Dave F
Casimir: Let me expand on something that I said in my response to your thread on ionic testing. Generally, no-clean people don�t use ROSE testing as part of their process control, because the ROSE test is essentially washing your board in DI/IPA �
Electronics Forum | Mon Feb 07 11:05:50 EST 2000 | Graham Naisbitt
Dave You are so right about that point. I still use some cost models we ran up some 5 years ago. I took one to a customer and showed them that they could make $400K more PROFIT PER YEAR running OA v No-Clean. Their response? Well, we don't believe
Electronics Forum | Tue Feb 01 09:53:37 EST 2005 | Howard Sommerfeld
I also have a spreadsheet tool for comparative analysis using criterion weighted scoring. It can be used to analyze any decision, and helps groups reach consensus on why a particular alternative is the way to go. As final steps you can also consider
Electronics Forum | Mon Feb 07 13:20:03 EST 2000 | Dave F
Graham STOP!!! You can not be totally serious. A five year old cost model counts bean, and beans are beans. I have to know more about the calculation. If this bores some of your gear-heads, click on "return." � Help me with the terms: - "Ops cos
Electronics Forum | Fri Jan 28 12:29:01 EST 2005 | Bob R.
We use the exact same method Chunks outlined for evaluating just about anything we're going to roll out worldwide, whether it's a material or a machine. List your factors (print speed, solder spread, etc), assign each a weight, evaluate each paste a
Electronics Forum | Tue Aug 30 15:05:23 EDT 2005 | Shean Dalton
Dear Ing, Have you analyzed why some RF device aren't operational after washing? An assumption is that failures are related to the ultrasonic energy applied. Other possibilities are for poor rinsing, poor drying, inadequate washing on those failed
Electronics Forum | Fri Jan 28 12:18:32 EST 2005 | Chunks
Your best bet is to do a decision making matrix. Each company has so many different criteria�s it's hard to pick out which one might be important to yours. Simply pick out your top 5 paste manufactures. Next decide what your "Eliminators" are - th
Electronics Forum | Thu Jul 07 04:34:19 EDT 2005 | Lloyd
This problem exists at a very low level but happens on all our discrete components, all our products and in two plants. Between the PCB land and the component termination there is a barrier of flux residue, this actually lifts the component slightly
Electronics Forum | Tue Nov 14 22:01:07 EST 2000 | Dave F
I'd love to get to the point that I could discuss the impact of flux on dross formation. Until then, I fight with proper solder pot temperature, maintaining enough pump speed, and solder contaminants.
