July 2010 Print E-mail
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Written by Rebekah Just   
Monday, 07 June 2010 00:00

July 2010 cover

FEATURES

    DfF
    Are Your PCB Data Unprepared?
    It is great to have a fabricator that can provide its “secret sauce” to make the design work, but be ready to get locked into that supplier, because another fabricator’s recipe will be different. As a designer, is that a risk you want to take?
    by Jeff Champa

    ESD
    Why it is Necessary to Change the IC ESD Target Specification Levels
    Since the mid 1980s, it has been industry practice to supply ICs with ESD protection, where possible, to meet 2kV HBM ESD. While IC suppliers make every effort to meet these established levels, customers tend to expect these same levels without exception for product qualification. However, numerous products have been shipped with ESD protection on some pins at lower levels to achieve desired performance. Despite this, field returns have not been observed to be different from the products shipped at, or exceeding, the normal target ESD levels. These observations clearly indicate the target ESD levels must be considerably higher than necessary. After 20 “static” years, more realistic measures are needed.
    by Dr. Charvaka Duvvury, Dr. Harald Gossner and Dr. Jeremy Smallwood

    Component Placement
    High Accuracy 01005 Placement

    To place 01005 components, the pick process must be very stable. As component spacing will be very narrow, the pickup point of the nozzle must be in the center of the component. Using laser alignment and novel placement force control, accuracy of 50 µm at 4-Sigma is achievable.
    by Satoshi Kataoka and Eric Klaver

 

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Last Updated on Monday, 12 July 2010 16:21
 

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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Products

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...