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.

Date of Patent:
Apr. 02, 2019

Filed:

Aug. 29, 2014
Applicant:

Asahi Kasei Microdevices Corporation, Tokyo, JP;

Inventors:

Kenji Suzuki, Tokyo, JP;

Hideto Imajo, Tokyo, JP;

Hidenori Hasegawa, Tokyo, JP;

Kenji Kai, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); G01R 15/20 (2006.01); G01R 1/00 (2006.01);
U.S. Cl.
CPC ...
G01R 15/20 (2013.01); G01R 1/00 (2013.01); H01L 21/00 (2013.01); H01L 2221/00 (2013.01);
Abstract

A current sensor includes a first current pathway, a first magnetic sensor arranged near the first current pathway, a second magnetic sensor arranged opposite the first magnetic sensor with the first current pathway in between, a second current pathway, a third magnetic sensor arranged near the second current pathway, a fourth magnetic sensor arranged opposite the third magnetic sensor with the second current pathway in between, and a signal processor that generates a signal based on a quantity of the first measured current from output of the first magnetic sensor and output of the second magnetic sensor, and also generates a signal based on a quantity of the second measured current from output of the third magnetic sensor and output of the fourth magnetic sensor.


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