December 2011 Print E-mail
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Monday, 09 May 2011 00:00

December 2011 cover


FEATURES

    Retrospective
    In Memoriam
    2011 will likely be recalled as a transitive year, one in which we took stock of the pros and cons of various geographies and business models as we tried to come to grips with very uncertain economic times. It will also be recalled as the year we lost some of the industry’s biggest names from all ends of the design and manufacturing spectrum, from Steve Jobs to Werner Engelmaier. This month we reflect on their impact on our industry and our lives.

    Stencils
    SMT Stencils from a Production Perspective
    The SMT stencil market is burgeoning with new materials, coatings and cutting technologies, all of which promise to improve the solder paste printing process. Which of these options really help assemblers keep yields up and costs down, and which are nothing more than techno-snake oil borne of marketing genius? An investigation took a comprehensive look at SMT stencils under volume manufacturing conditions.
    by Chrys Shea

    Automated Inspection
    Implementing Good Test Coverage and Eliminating Escapes
    Recent experiments on AOI, AXI and ICT in a production setting revealed multiple test coverages are ideal to ensure no escapes. The researchers found there is room to reduce testing coverage by studying detectable defects and testing yield, and a DPMO prediction can be made for a new assembly program.
    by Gaosen Li, An Qi Zhao, Andrew Ho, Wei Wen, Zhen (Jane) Feng, Ph. D., Murad Kurwa, Haolee Yang and Liang Chen

     

 

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Last Updated on Wednesday, 14 December 2011 13:28
 

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

KIC Debuts K2 Thermal Profiler
K2 thermal profiler has plug-and-play hardware and a graphical user interface said to make profiling both quick and easy. Enables each thermocouple to use its own unique process window, while...