Title:
OVERVOLTAGE PROTECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/024577
Kind Code:
A1
Abstract:
An overvoltage protection device (100) may include a metal oxide varistor (MOV) (102) having a first surface (114) and a second surface (116); a semiconductor substrate (202) having a first outer surface (126) and a second outer surface (128) and comprising a semiconductor crowbar device (104) comprising a plurality of semiconductor layers arranged in electrical series to one another, the semiconductor substrate (202) being disposed on a first side of the metal oxide varistor (102), a conductive region (124) disposed between the second surface (116) of the MOV (102) and the first outer surface (126) of the semiconductor substrate (202); a first electrical contact (120) disposed on the first surface (114) of the MOV (102); and a second electrical contact (122) disposed on the second outer surface (128) of the semiconductor substrate (202).
Inventors:
TO TEDDY C T (CN)
CHIN CHUANFANG (CN)
DU YAOSHENG (CN)
CHIN CHUANFANG (CN)
DU YAOSHENG (CN)
Application Number:
PCT/CN2015/086834
Publication Date:
February 16, 2017
Filing Date:
August 13, 2015
Export Citation:
Assignee:
LITTELFUSE SEMICONDUCTOR (WUXI) CO LTD (CN)
International Classes:
H02H9/04; H01C7/12
Foreign References:
| CA963167A | 1975-02-18 | |||
| CN101233585A | 2008-07-30 | |||
| CN102403704A | 2012-04-04 | |||
| CN101079341A | 2007-11-28 | |||
| US5982597A | 1999-11-09 | |||
| US20090027153A1 | 2009-01-29 |
Other References:
See also references of EP 3335290A4
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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