Invention Grant
US5977569A Bidirectional lateral insulated gate bipolar transistor having increased
voltage blocking capability
失效
具有增加的电压阻断能力的双向横向绝缘栅双极晶体管
- Patent Title: Bidirectional lateral insulated gate bipolar transistor having increased voltage blocking capability
- Patent Title (中): 具有增加的电压阻断能力的双向横向绝缘栅双极晶体管
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Application No.: US924106Application Date: 1997-09-05
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Publication No.: US5977569APublication Date: 1999-11-02
- Inventor: Hsin-Hua P. Li
- Applicant: Hsin-Hua P. Li
- Applicant Address: WI Milwaukee
- Assignee: Allen-Bradley Company, LLC
- Current Assignee: Allen-Bradley Company, LLC
- Current Assignee Address: WI Milwaukee
- Main IPC: H01L29/06
- IPC: H01L29/06 ; H01L29/739 ; H03K17/00 ; H03K17/567 ; H01L29/74
Abstract:
A bidirectional lateral insulated gate bipolar transistor (IGBT) includes two gate electrodes. The IGBT can conduct current in two directions. The IGBT relies on a double RESURF structure to provide high voltage blocking in both directions. The IGBT is symmetrical, having an N-type drift region in contact with an oxide layer. A P-type region is provided above the N-type drift region, having a portion more heavily doped with P-type dopants. The double RESURF structure can be provided by a buried oxide layer, a floating doped region, or a horizontal PN junction. The IGBT can be utilized in various power operations, including a matrix switch or a voltage source converter.
Public/Granted literature
- US4192607A Apparatus for selectively copying documents from two different document feeders Public/Granted day:1980-03-11
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