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David Stringfellow

David Stringfellow, staff design consultant with Synopsys Professional Services, has led or contributed to the development of several SoCs in applications ranging from automotive engine controllers to x86 processors. He holds four U.S. patents, was named a General Motors Fellow in 1991, and is a Synopsys Distinguished Author. Stringfellow received a BS and MS in electrical and computer engineering from Purdue University.


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Author Articles

  • Practical Ways To Estimate, Implement, And Verify SoC Decoupling Capacitance

    By John Pedicone, October 25, 2007

    Deep-submicron systems-on-a-chip (SoCs) require a power-grid voltage drop of much less than 10% of VDD. Decoupling capacitors, or decaps, help achieve this goal by minimizing switching noise. Determining the amount of decap required for

  • Rail-Signoff Analysis Ensures SoC Power Integrity

    By David Stringfellow, January 19, 2006

    More than ever, power integrity is vital in the successful creation of today's system-on-a-chip (SoC) designs. That's because e xcessive rail voltage drop ( IR drop) and ground bounce can create timing problems. Also, excessive current can cause electromi