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NEWSLETTER: April 6, 2017
Potted QFP Rework Challenge
Potted QFP Rework Challenge
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
Delamination Causing Scrap
Ask the Experts
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
Process Control and Reliability of Reworked BGA Solder Joint
Potted QFP Rework Challenge
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
Rework Option Eliminates Jumper Wires
Potted QFP Rework Challenge
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
The Fourth Industrial Revolution Gains Momentum
Potted QFP Rework Challenge
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
Published By
Circuit Technology Center
Andy Price, Bob LePage, Ronna LaBranche, Jose Irizarry, Ted Farnham, Bun Chhouy, Peter Vigneau, Jeff Ferry

For over 33 years Circuit Technology Center and CircuitMedic have been recognized as the world's most innovative and reliable specialists in circuit board rework and repair services and products.
Trivia Question
Which of these elements comprises the highest percentage of the earth's crust: Oxygen, Iron, Clacium
See the answer below.
Quote of the Day
"From now on, ending a sentence with a preposition is something up with which I will not put."
Sir Winston Churchill
"As my assistant, your job will be to follow me around humming the "Jaws" theme every time I enter a room."
Copyright © Randy Glasbergen
Trivia Answer