Invention Grant
- Patent Title: SiC devices with high blocking voltage terminated by a negative bevel
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Application No.: US13108366Application Date: 2011-05-16
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Publication No.: US09306004B2Publication Date: 2016-04-05
- Inventor: Qingchun Zhang , Craig Capell , Anant Agarwal , Sei-Hyung Ryu
- Applicant: Qingchun Zhang , Craig Capell , Anant Agarwal , Sei-Hyung Ryu
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agent Anthony J. Josephson
- Main IPC: H01L29/06
- IPC: H01L29/06 ; H01L29/10 ; H01L29/36 ; H01L29/732 ; H01L29/739 ; H01L29/74 ; H01L29/78 ; H01L29/861 ; H01L29/16

Abstract:
A negative bevel edge termination for a Silicon Carbide (SiC) semiconductor device is disclosed. In one embodiment, the negative bevel edge termination includes multiple steps that approximate a smooth negative bevel edge termination at a desired slope. More specifically, in one embodiment, the negative bevel edge termination includes at least five steps, at least ten steps, or at least 15 steps. The desired slope is, in one embodiment, less than or equal to fifteen degrees. In one embodiment, the negative bevel edge termination results in a blocking voltage for the semiconductor device of at least 10 kilovolts (kV) or at least 12 kV. The semiconductor device is preferably, but not necessarily, a thyristor such as a power thyristor, a Bipolar Junction Transistor (BJT), an Insulated Gate Bipolar Transistor (IGBT), a U-channel Metal-Oxide-Semiconductor Field Effect Transistor (UMOSFET), or a PIN diode.
Public/Granted literature
- US09337268B2 SiC devices with high blocking voltage terminated by a negative bevel Public/Granted day:2016-05-10
Information query
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