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A manufacturer of outdoor electronic billboards had hundreds of circuit board assemblies that were returned from the field. They all required the removal and replacement of a faulty 44 pin fine pitch QFP device. These 15" x 10" circuit board assemblies were populated with over 1500 surface mount LEDs, along with hundreds of other surface mount devices. Ordinarily, the removal and replacement of a QFP would be a relatively straightforward rework project. In this case ...
Feature Story
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We have been experiencing delamination on our printed board assemblies causing scrap. Is there a way to definitively determine that the delamination is being caused by moisture vs. some other type of defect? Is it possible to repair delamination in printed board assemblies ...
Ask the Experts
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This paper discusses the work done in identifying the key features for the right BGA rework equipment and the aspects important for a reliable and repeatable rework process for BGAs and bottom termination components. The work includes ...
Technical Library
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A customer identified a design error involving two component patterns on the secondary side of a circuit board. Two circuits were incorrectly routed. Although many of the boards were completely assembled, a large percentage of circuit boards were partially assembled leaving the effected site ...
Feature Story
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Mankind will look back on the Industry 4.0, or the Fourth Industrial Revolution, as the most important development so far in human history. What is it? Where does it stand? What are the implications for workers, investors and society ...
Technology Briefing
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"As my assistant, your job will be to follow me around humming the "Jaws" theme every time I enter a room."
Copyright © Randy Glasbergen
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Trivia
Which of these elements comprises the highest percentage of the earth's crust: Oxygen, Iron, Clacium
See the answer below.
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Quote of the Week
"From now on, ending a sentence with a preposition is something up with which I will not put."
Sir Winston Churchill
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