Patent ID: 6303969
Filing Date: 2001-10-16
Classification: H01L

Abstract:
A rectifier comprising:a first semiconductor layer of a first conductivity type having a first surface and an opposite surface;a Schottky barrier contact on said first surface defining an active area;a first electrode layer in conductive contact with said Schottky barrier contact;a second semiconductor layer of said first conductivity type having a lower resistivity than said first semiconductor layer and with one surface disposed adjacent said opposite surface of said first layer along said active area and having another opposite surface;a second electrode layer in conductive contact with said another opposite surface of said second semiconductor layer;trench means, formed in said first surface within an edge of and surrounding said active area beneath said first electrode layer, for receiving an insulating material to limit current leakage from the edge of said active area; andoxide layers formed on said first surface at the edge of said active area with said trench means disposed between said edge and said oxide layers.