Invention Grant
- Patent Title: High density FET with integrated Schottky
- Patent Title (中): 集成肖特基的高密度FET
-
Application No.: US12242633Application Date: 2008-09-30
-
Publication No.: US08686493B2Publication Date: 2014-04-01
- Inventor: Paul Thorup , Christopher Lawrence Rexer
- Applicant: Paul Thorup , Christopher Lawrence Rexer
- Applicant Address: US ME South Portland
- Assignee: Fairchild Semiconductor Corporation
- Current Assignee: Fairchild Semiconductor Corporation
- Current Assignee Address: US ME South Portland
- Main IPC: H01L29/66
- IPC: H01L29/66

Abstract:
A semiconductor structure includes a monolithically integrated trench FET and Schottky diode. The semiconductor structure further includes a plurality of trenches extending into a semiconductor region. A stack of gate and shield electrodes are disposed in each trench. Body regions extend over the semiconductor region between adjacent trenches, with a source region extending over each body region. A recess having tapered edges extends between every two adjacent trenches from upper corners of the two adjacent trenches through the body region and terminating in the semiconductor region below the body region. An interconnect layer extends into each recess to electrically contact tapered sidewalls of the source regions and the body regions, and to contact the semiconductor region along a bottom of each recess to form a Schottky contact therebetween.
Public/Granted literature
- US20090090966A1 HIGH DENSITY FET WITH INTEGRATED SCHOTTKY Public/Granted day:2009-04-09
Information query
IPC分类: