Invention Grant
- Patent Title: Bidirectional phase controlled thyristor (BiPCT)—a new semiconductor device concept
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Application No.: US16969773Application Date: 2019-02-13
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Publication No.: US11056582B2Publication Date: 2021-07-06
- Inventor: Jan Vobecky , Umamaheswara Vemulapati , Munaf Rahimo
- Applicant: ABB Power Grids Switzerland AG
- Applicant Address: CH Baden
- Assignee: ABB Power Grids Switzerland AG
- Current Assignee: ABB Power Grids Switzerland AG
- Current Assignee Address: CH Baden
- Agency: Slater Matsil, LLP
- Priority: EP18156415 20180213
- International Application: PCT/EP2019/053560 WO 20190213
- International Announcement: WO2019/158594 WO 20190822
- Main IPC: H01L29/747
- IPC: H01L29/747 ; H01L29/06 ; H01L29/08 ; H01L29/423

Abstract:
A bidirectional thyristor device includes a semiconductor wafer with a number of layers forming pn junctions. A first main electrode and a first gate electrode are arranged on a first main side of the wafer. A second main electrode and a second gate electrode are arranged on a second main side of the wafer. First emitter shorts penetrate through a first semiconductor layer and second emitter shorts penetrate through a fifth semiconductor layer. In an orthogonal projection onto a plane parallel to the first main side, a first area occupied by the first semiconductor layer and the first emitter shorts overlaps in an overlapping area with a second area occupied by the fifth semiconductor layer and the second emitter shorts. The overlapping area, in which the first area overlaps with the second area, encompasses at least 50% of a total wafer area occupied by the semiconductor wafer.
Information query
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