What is custom design?

Discussion in 'Cadence' started by Kuan Zhou, Apr 28, 2004.

  1. Kuan Zhou

    Kuan Zhou Guest

    Hi,
    Does full custom design mean you design everything by yourself, like
    ASIC? FPGA is only semi-customed design?

    This question may sound stupid. Please correct me if I am wrong.

    sincerely
     
    Kuan Zhou, Apr 28, 2004
    #1
  2. Kuan Zhou

    kal Guest

    Full-custom generally means that a significant portion of the
    transistors in the chip are individually specified. Non full-custom
    ASIC designs are usually done using standard cell libraries where all
    the cells are already designed and characterized. Both full-custom and
    standard cell designs are ASIC methodologies. FGPAs are not in the
    ASIC category as they can be adapted to almost any design
    requirements; it can also be argued that FPGAs are standard products
    as opposed to ASICs or even ASSPs.
     
    kal, Apr 28, 2004
    #2
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