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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10096590 B1

PDFFull Text
Date of Patent:
Oct. 09, 2018

Filed:

Sep. 16, 2014

Sensor device including diode elements connected in series in opposite directions to each other

Applicant:

Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;

Inventors:

Masahiro Matsumoto, Tokyo, JP;

Hiroshi Nakano, Tokyo, JP;

Yoshimitsu Yanagawa, Tokyo, JP;

Akira Kotabe, Hitachinaka, JP;

Assignee:

HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Caleb Henry

Int. Cl.
CPC ...
H01L 23/552 (2006.01); H01L 27/02 (2006.01); H01L 29/72 (2006.01); H01L 29/861 (2006.01); H01L 21/822 (2006.01); H01L 27/04 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0255 (2013.01); H01L 21/822 (2013.01); H01L 23/552 (2013.01); H01L 27/0288 (2013.01); H01L 27/04 (2013.01); H01L 29/72 (2013.01); H01L 29/861 (2013.01);
Abstract

In conventional sensor devices, it has been difficult to achieve both EMC resistance and ESD resistance, which are required at the output terminals of an automobile sensor device. A sensor deviceof the present embodiment comprises: a power supply terminalthat supplies power; a ground terminal; a sensor element, the electrical characteristics of which change in accordance with a physical quantity; a signal processing integrated circuitthat processes an output signal output from the sensor element; and an output terminal that outputs the output signal processed by the signal processing integrated circuit. In addition, the signal processing integrated circuitcomprises: a signal processing circuitthat processes the output signal output from the sensor element; a resistance elementthat is connected between the output terminaland the signal processing circuit, and that is disposed on an insulating film; diode elementsthat are connected between the output terminaland the ground terminal, and that are serially connected with each other in opposite directions; and a capacitance elementthat is connected between the ground terminaland the signal processing circuitside of the resistance element

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