Invention Grant
- Patent Title: Bipolar transistor device with an emitter having two types of emitter regions
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Application No.: US15635464Application Date: 2017-06-28
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Publication No.: US10224206B2Publication Date: 2019-03-05
- Inventor: Roman Baburske , Christian Jaeger , Franz Josef Niedernostheide , Hans-Joachim Schulze , Antonio Vellei
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: INFINEON TECHNOLOGIES AG
- Current Assignee: INFINEON TECHNOLOGIES AG
- Current Assignee Address: DE Neubiberg
- Agency: Slater Matsil, LLP
- Priority: DE102015104723 20150327
- Main IPC: H01L21/26
- IPC: H01L21/26 ; H01L21/268 ; H01L21/04 ; H01L29/36 ; H01L29/66 ; H01L29/739 ; H01L29/08 ; H01L29/861

Abstract:
Disclosed is a bipolar semiconductor device, comprising a semiconductor body having a first surface; and a base region of a first doping type and a first emitter region in the semiconductor body, wherein the first emitter region adjoins the first surface and comprises a plurality of first type emitter regions of a second doping type complementary to the first doping type, a plurality of second type emitter regions of the second doping type, a plurality of third type emitter regions of the first doping type, and a recombination region comprising recombination centers, wherein the first type emitter regions and the second type emitter regions extend from the first surface into the semiconductor body, wherein the first type emitter regions have a higher doping concentration and extend deeper into the semiconductor body from the first surface than the second type emitter regions, wherein the third type emitter regions adjoin the first type emitter regions and the second type emitter regions, and wherein the recombination region is located at least in the first type emitter regions and the third type emitter regions.
Public/Granted literature
- US20180012764A1 Bipolar Transistor Device With an Emitter Having Two Types of Emitter Regions Public/Granted day:2018-01-11
Information query
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