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Schottky diode

  • US 20040012066A1
  • Filed: 07/11/2003
  • Published: 01/22/2004
  • Est. Priority Date: 01/11/2001
  • Status: Active Grant
First Claim
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1. A Schottky diode, comprising:

  • a semiconductor body having a top side;

    a weakly-conductive doped well formed in said semiconductor body;

    a metallic layer on said well for forming a Schottky junction with lateral edges, said lateral edges being at least one of longer than a straight edge, curved, ramified, and rimose;

    said metallic layer being at least one layer selected from the group of thin layers consisting of;

    a liner of a contact hole filling extending in a dielectric layer covering said top side, a metal silicide layer, and a liner on said metal silicide layer; and

    a contact region being highly doped for a low-impedance contact connection and having a lateral boundary in said doped well and one of a lattice-shaped structure, a finger-shaped structure, a comb-shaped structure, an irregularly curved edge, a ramified edge, and a rimose edge.

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