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SiGe

From Academic Kids

SiGe stands for Silicon-Germanium heterojunction bipolar transistor and is an integrated circuit (IC) manufacturing technology. This relatively new technology offers interesting opportunities in mixed-signal circuit and analog circuit IC design and manufacture. Some of the key points of SiGe include:

  • Heterojunction bipolar transistor have significantly higher forward gain and lower reverse gain which translates into far better low current and high frequency performance than typically available from homojunction or traditional bipolar transistors
  • Being a heterojunction technology, the opportunity for band-gap tuning exists which has normally been available only to so-called III-V semiconductors.

The major players in SiGe foundry services are IBM, TSMC, Freescale nee Motorola Semiconductor, Sony, Atmel, Chartered Semiconductor, Micrel and Conexant de:SiGe

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