• Virtual Manufacturing
    A Supply-Chain Engineering Solution
    Most EMS companies have seen limited success providing design-related services to OEMs. A new method known as "Virtual Cluster" proposes to bring together best-in-class companies for design project engineering and supply-chain functions, to reduce cost and time-to-market.
    Bill Coker

  • Cover Story
    Pb-Free Reflow and Rework
    While long-term reliability evals are ongoing, NEMI has found that when using optimized tools and processes carried out by experienced personnel, SnAgCu reflow forces a big hike in melt temperature. A list of findings and recommended changes for lead-free reflow and rework.
    Matt Kelly, Quyen Chu and Jasbir Bath

  • Large Format Rework
    Large Format Rework for Eutectic and Lead-Free Applications
    Meeting specific rework needs of disparate boards requires a move away from one-size-fits-all equipment. The combination of full-bottom-panel, low-mass IR heating, stationary board fixturing and gantry-type reflow can eliminate many warping problems faced when reworking large BGA boards.
    Stan Kench

  • Optical Inspection
    Lead-Free First-Article Inspection
    Smaller process windows of lead-free alloys put greater demands on soldering equipment and inspection equipment and procedures. What are the typical process concerns associated with LF alloys for first-article OI and line qualification?
    Mark Cannon

  • Data Reliability
    Manufacturing Effects on Data Retention of Nonvolatile Memory Devices
    There is negligible effect on data retention by soldering NVM devices after they have been programmed.
    Kelly Hirsch


  • Caveat Lector
    Mr. President, your time is at hand.
    Mike Buetow

  • On the Forefront
    SiP gets dialed in.
    E. Jan Vardaman

  • Talking Heads
    Hisco's Bill Baird.
    Mike Buetow

  • Emerging Technology
    Battlebots: fighting tomorrow's wars.
    Ken Gilleo

  • Focus on Business
    Marketing programs that work.
    Susan Mucha

  • Process Doctor
    Inadequate reflow profiles cause weak joints and flex residues.
    Terry Munson


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On the cover: An intensive collaborative investigation reveals certain parameters for lead-free rework.

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