March 2006 Issue Print E-mail
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Tuesday, 28 February 2006 19:00

March 2006 cover

FEATURES

  • Cover Story
    Cleaning Up after Pb-Free
    Lacking field data for no-clean Pb-free solders and confidence in accelerated aging tests? An expected increase in contaminants means effective cleaning is the only way to guarantee an assembly won't fail due to residues.
    Leigh Jansen

  • Process Management
    Concurrent Manufacturing in an EMS Environment
    The changes and precautions to take down the line during implementation of Pb-free manufacturing. This review covers printing, placement, soldering, inspection, materials management, compatibility and marking.
    Amey Teredesai and Tony Batalha

  • Soldering Materials
    Pb-Free Solder Assembly for Mixed-Technology Boards
    While assemblers push for a single alloy throughout all soldering processes to avoid cross-contamination, tests show no joint degradation related to the mixing of SN100C and SAC alloys.
    Karl Seelig

  • Wire Bonding
    Increasing Process Reliability in Fine-Pitch Wire Bonding
    A two-year study involving millions of bonds on LQFPs and BGAs identifies close ties between the performance of the wire bonder capillary and subsequent failures.
    Yair Alcobi

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On the cover: Due to a lack of Pb-free aging data, cleaning may make a comeback. (Cover photo courtesy Humiseal/Chase Specialty Coatings.)

Last Updated on Tuesday, 07 February 2012 09:45
 

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

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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...