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.:
Date of Patent:
Sep. 12, 2017
Filed:
Jul. 01, 2016
Fuji Electric Co., Ltd., Kawasaki-shi, Kanagawa, JP;
Johnny Kin On Sin, Kowloon, HK;
Lulu Peng, Kowloon, HK;
Rongxiang Wu, Kowloon, HK;
Hitoshi Sumida, Kawasaki, JP;
Yoshiaki Toyoda, Kawasaki, JP;
Masashi Akahane, Kawasaki, JP;
FUJI ELECTRIC CO., LTD., Kawasaki-Shi, Kanagawa, JP;
Abstract
An isolator is configured by a transmission circuit, a transformer, and a reception circuit. A first coil of the transformer is disposed on a back surface of a first semiconductor substrate; a transmission circuit and a second coil of the transformer are disposed on a front surface. The first coil is embedded within a coil trench, is led out through an embedded via-metal-film to a substrate front surface, and is electrically connected to the transmission circuit. The second coil is disposed on an insulating layer of the substrate front surface. The reception circuit is disposed on a front surface of a second semiconductor substrate. The second coil and the reception circuit are electrically connected to each other by connecting first and third electrode pads disposed respectively on the front surfaces of the first and second semiconductor substrates through wires.