2012 Issues

March 2012 cover

FEATURES

Conformal Coatings
Protecting Silicon with Silicone
Silicone chemistry is a unique combination: neither purely organic (i.e., carbon-based) nor purely inorganic (i.e., silicon-based), but a molecular-level hybrid of both. The nature of the Si-O bond in the polymer backbone creates low rotation barriers and large bond energies. This inorganic polysiloxane backbone provides the foundation for building materials with superior thermal properties, environmental resistance and flexibility, even at temperatures below -70oC. New systems are more robust, faster curing and require less energy than conventional chemistry.
by Brian Chambers

Parts Qualification
Detection of Counterfeit Components
During an investigation, a finding that suggests a part is counterfeit must be verified beyond the testing itself. If a construction material is identified that is not the same as that on a verified genuine comparison part, the investigators must ensure that this is not accounted for by acceptable changes made by the manufacturer. This underscores that such investigations are often not as straightforward as they may seem. This discussion by a major US prime defense contractor points out alternate, less common methods for counterfeit detection. These are important, as often components that seemingly pass incoming inspections may still be counterfeit.
by W. John Wolfgong, Ph.D., James Izzo and Mark Depriest

 

FIRST PERSON

  • Caveat Lector
    Happy anniversary.
    Mike Buetow

  • Talking Heads
    MFLEX’s Jay Desai.
    Mike Buetow

 

MONEY MATTERS

    • ROI
      Secret to success.
      Peter Bigelow

 

TECH TALK

  • Materials World
    Electrically conductive adhesives.
    Jie Bai

  • Tech Tips
    Component whisker mitigation.
    ACI Technologies
  • Getting Lean
    What’s in it for the customer.
    Steve Fraser

  • Defects Database
    Blocked stencil apertures.
    Dr. Chris Hunt

  • Technical Abstracts
    In Case You Missed It.

February 2012 cover

FEATURES

Cover Story
Benchmarking and Qualifying PCB Fabricators for Semiconductor Device Test Boards
Standardized test panels provide a sound basis for engaging with suppliers and participating in continuous improvement plans. Over time, test panel results objectively demonstrate if suppliers are attaining agreed-upon goals.
by William J. Mack

PCB Inspection
Using Automated 3D X-Ray Inspection to Detect BTC Defects
Bottom-termination components such as QFNs are characterized by hidden solder joints, making inspection tricky. Defects such as insufficients often have enough solder present to pass ICT and functional test, but when subjected to shock or vibration, there is a good chance this solder connection will fracture, leading to an open connection.
by Barbara Koczera and An Qi Zhao

Environmental Management
Developing a Compliance System for RoHS2
With the latest directive, RoHS is becoming more focused on validation of process, rather than inspection of results. A look at the methodology of developing a compliance system to address the electronics manufacturer’s obligations.
by Scott Mazur

Stencil Technology
What Used to be Old is New Again?
Recent developments give laser-cut stainless stencils the nod over their electroformed counterparts.
by Chrys Shea

 

FIRST PERSON

    • Caveat Lector
      The DoD fights back.
      Mike Buetow

 

  • Talking Heads
    Asteelflash’s Gilles Benhamou.
    Mike Buetow

 

MONEY MATTERS

    • ROI
      Small talk.
      Peter Bigelow

    • Focus on Business
      Adapting to uncertainty.
      Susan Mucha

 

TECH TALK

  • Screen Printing
    Lights-out printing.
    Clive Ashmore

  • Vapor Phase Soldering
    Save your energy.
    Jochen Lipp

  • Test and Inspection
    ECU coverage.
    Cynthia Chuah

  • Defects Database
    Solder paste contamination.
    Dr. Chris Hunt

  • Technical Abstracts
    In Case You Missed It.

January 2012 cover

Digital Edition:
http://ourdigitalmags.com/publication/?i=95369

FEATURES

Productronica Recap
Evolving and Upbeat in Munich
The de facto prism through which the industry is observed suggests an industry in recovery – and in full faculty of its senses.
by Mike Buetow

PCB Inspection
Automating First-Article Inspection
Along with quality improvements that resulted from higher levels of automation in process manufacturing, emerging automated inspection technologies, now with decades of development behind them, are striving to eliminate the potential for human error.
by Paul Walsh

Component Procurement
The Great GAO Counterfeiting Sting
A US sting broke up a ring selling fake parts to the US Defense Department. But is there a better way to beat the black market?
by Dr. James A. Hayward

 

FIRST PERSON

 

  • Talking Heads
    Avnet’s Alex Iuorio.
    Mike Buetow

 

MONEY MATTERS

    • ROI
      Where Procurement is failing.
      Peter Bigelow
    • Focus on Business
      Mentoring networks.
      Susan Mucha

 

TECH TALK

  • On the Forefront
    Will 2012 bring a reprieve?
    E. Jan Vardaman

  • Selective Soldering
    Retinning new components.
    Alan Cable

  • Tech Tips
    Which selective soldering type is best?
    ACI Technologies Inc.

  • Defects Database
    Paste slump remedies.
    Dr. Chris Hunt

  • Solar Technologies
    Passing markers on the road.
    Tom Falcon

  • Process Doctor
    When not to clean.
    Mike Bixenman

  • Getting Lean
    The design driver.
    Carlos Rodriguez and Hilario Apodaca

  • Technical Abstracts
    In Case You Missed It.

Page 4 of 4