Title:
TVS DEVICE USING VERTICAL TRIODE TO TRIGGER SURFACE SILICON CONTROLLED RECTIFIER STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2021/068462
Kind Code:
A1
Abstract:
Disclosed in the present invention is a TVS device using a vertical triode to trigger a surface silicon controlled rectifier structure, comprising a semiconductor body, the semiconductor body comprising a surface junction silicon controlled rectifier structure and a vertical NPN structure, the pass-through isolation of an anode of the silicon controlled rectifier structure and the semiconductor body being connected by metal; when the vertical NPN structure breaks down, the surface junction silicon controlled rectifier structure is triggered; by means of the addition of the trigger structure, the present invention provides a voltage or current in order to reduce the trigger voltage and increase the maintenance voltage, such that the TVS performance of the silicon controlled rectifier structure is closer to ideal.
Inventors:
ZHAO DEYI (CN)
SU HAIWEI (CN)
LV HAIFENG (CN)
JIANG QIANYUAN (CN)
ZHANG XIAO (CN)
WANG YUN (CN)
ZHAO ZHIFANG (CN)
SU HAIWEI (CN)
LV HAIFENG (CN)
JIANG QIANYUAN (CN)
ZHANG XIAO (CN)
WANG YUN (CN)
ZHAO ZHIFANG (CN)
Application Number:
PCT/CN2020/081888
Publication Date:
April 15, 2021
Filing Date:
March 27, 2020
Export Citation:
Assignee:
SHANGHAI WAYON SEMICONDUCTOR CO LTD (CN)
International Classes:
H01L27/02
Foreign References:
| CN110600467A | 2019-12-20 | |||
| CN101617452A | 2009-12-30 | |||
| CN110010602A | 2019-07-12 | |||
| CN102290417A | 2011-12-21 | |||
| CN107919355A | 2018-04-17 | |||
| CN105633074A | 2016-06-01 | |||
| CN108807372A | 2018-11-13 | |||
| CN103390618A | 2013-11-13 | |||
| US9520389B1 | 2016-12-13 | |||
| US6844595B2 | 2005-01-18 |
Attorney, Agent or Firm:
SHANGHAI EAST ASIA PATENT & TRADEMARK AGENCY CO., LTD. (CN)
Download PDF: