Sunstone Circuits, has released the newest version of their design software, PCB123. Bottom line, the design process just got easier. Sunstone Circuits
Acceptable Level of Exposed Copper?
Is there an acceptable level of exposed copper on gold plated circuit boards where all the conductors are gold plated?
Phil Zarrow, ITM Consulting With over 35 years experience in PCB assembly, Phil is one of the leading experts in SMT process failure analysis. He has vast experience in SMT equipment, materials and processes.
Jim Hall, ITM Consulting A Lean Six-Sigma Master Blackbelt, Jim has a wealth of knowledge in soldering, thermal technology, equipment and process basics. He is a pioneer in the science of reflow.
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I have some questions: What is the correct vacuum pressure to seal a bag of a moisture sensible component? Is the level of vacuum related to the level of sensitivity of the components? Where I can find some specification on the matter?
Norberto Barrera, EPIC Technologies
There were some talks few years back about gold directly over bare copper surface finish. Where soldering will be done directly to copper and the gold is acting as a corrosion resistance. I believe Macdermid was involved with such process. What happened to this finish? Is anyone in the industry using it?
Sherif Refaat, TRCI, Canada
SnCu is being proposed as an alternate to SAC materials because they are cheaper and supposedly process better. Why shouldn't I convert all my SAC PCBA to SnCu if it's so good. There have to be negatives.
Timothy Holder, GE Consumer & Industrial
Did I miss the answer to the question? Is there an acceptable level of exposed copper on flex and rigid boards?
Sunstone Circuits, has released the newest version of their design software, PCB123. Bottom line, the design process just got easier. Sunstone Circuits
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SMD & through-hole types; others will tally 01005s. A must for inventory control, parts order checking or JIT production. From $389. MOTORIZED or MANUAL. Manncorp
Components encapsulated in plastic or organic compounds are susceptible to moisture damage. So are PCBs, all can cause early field failures. Control MSDs per IPC J-Std-033b.1 and 1601. Super Dry®
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Norberto Barrera, EPIC Technologies
Sherif Refaat, TRCI, Canada
Timothy Holder, GE Consumer & Industrial
Michael Schulz