Patent ID: 8742533
Filing Date: 2014-06-03
Classification: H01L

Abstract:
1. A constant current semiconductor device having a Schottky Barrier, comprising an N type or a P type semiconductor epitaxial layer of a semi-insulating substrate, a first metallic electrode terminal and a second metallic electrode terminal that are both disposed over a top surface of the epitaxial layer, wherein a first Ohmic contact section and a Schottky contact section are disposed between said first metallic electrode terminal and said epitaxial layer, the first metallic electrode directly contacting a first portion of the first Ohmic contact section and directly contacting at least a portion of the Schottky contact section, a second portion of the first Ohmic contact section disposed under and directly contacting the Schottky contact section, a second Ohmic contact section is disposed between said second metallic electrode terminal and said epitaxial layer, and an area of the Schottky contact section between said first Ohmic contact section and said second Ohmic contact section is separated from said second Ohmic contact section.