August 2010 Print E-mail
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Written by Rebekah Just   
Tuesday, 10 August 2010 00:00

August 2010 cover

FEATURES

    Electrical Test
    Capacitor Testing Challenges and Solutions
    Capacitors are widely used for bypassing, coupling, filtering and tunneling electronic circuits. However, to be useful, their capacitance value, voltage rating, temperature coefficient and leakage resistance must be characterized. Although capacitor manufacturers perform these tests, many electronics assemblers also perform some of these tests as quality checks. A look at the challenges associated with capacitor testing, and some of the test techniques used.
    by Dale Cigoy

    Cover Story
    Under-Component Cleaning: How Low Can You Go?
    Preventing field failures due to electrochemical migration used to be relatively easy: Use a water-soluble flux and clean the board after soldering. This solution no longer holds true, and sometimes causes more problems than it prevents.
    by Harald Wack, Ph.D., Umut Tosun, Joachim Becht, Ph.D., Helmut Schweigart, Ph.D., and Chrys Shea

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Last Updated on Tuesday, 24 August 2010 13:58
 

Columns

Eastern-US: China’s New Competitor?

Parity emerges among EMS Factories from Asia, Mexico and the US.

For the first time in years we see parity in the Eastern US among EMS factories from Asia, Mexico and the US. This EMS market condition will permit American OEMs (the EMS industry refers to OEMs as customers) to have more EMS pathways to choose from. Now more than ever, such EMS assignments will require deeper investigation relating to the OEMs’ evaluation of manufacturing strategies.

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The Human Touch

For those who count on the electronics industry for big feats, it’s been a remarkable couple of years.

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Features

Advances in Concentration Monitoring and Closed-Loop Control

Contaminated bath water skews refractive index results. New technology can accurately measure aqueous cleaning agent concentration.

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Circuits Disassembly: Materials Characterization and Failure Analysis

A systematic approach to nonconventional methods of encapsulant removal.

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Panasonic Debuts PanaCIM Maintenance with Augmented Reality
PanaCIM Maintenance with Augmented Reality software provides instant communication and information to factory technicians -- when and where it is needed -- so they can respond to factory needs more...