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Fin field-effect transistors

  • US 7,667,271 B2
  • Filed: 04/27/2007
  • Issued: 02/23/2010
  • Est. Priority Date: 04/27/2007
  • Status: Expired due to Fees
First Claim
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1. A fin field-effect transistor (finFET) comprising:

  • a substrate;

    a fin having a first region, a second region, and a third region, the second region being interposed between the first region and the third region, the first region and the third region comprising a first material and the second region comprising a second material, the first material being different than the second material, the fin in the first region and the third region being completely formed of metal;

    a gate dielectric overlying the substrate and the fin, the gate dielectric overlying the fin in the second region; and

    a gate electrode overlying the gate dielectric.

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