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:
Nov. 07, 2017

Filed:

Aug. 04, 2015
Applicant:

Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;

Inventors:

Tomoaki Atsumi, Kanagawa, JP;

Masayuki Sakakura, Kanagawa, JP;

Yoshitaka Yamamoto, Nara, JP;

Jun Koyama, Kanagawa, JP;

Tetsuhiro Tanaka, Kanagawa, JP;

Kazuki Tanemura, Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/12 (2006.01); H01L 29/786 (2006.01);
U.S. Cl.
CPC ...
H01L 27/1225 (2013.01); H01L 29/78648 (2013.01);
Abstract

A highly reliable semiconductor device that is suitable for high-speed operation is provided. A semiconductor device includes a first circuit, a second circuit, and a third circuit. The first circuit has an arithmetic processing function. The second circuit includes a memory circuit. The memory circuit includes a transistor which includes a first conductor, a second conductor, a first insulator, a second insulator, and a semiconductor. The first conductor includes a region overlapping the semiconductor with the first insulator positioned between the first conductor and the semiconductor. The second conductor includes a region overlapping the semiconductor with the second insulator positioned between the second conductor and the semiconductor. The first conductor is capable of selecting on or off of the transistor. The third circuit is electrically connected to the second conductor, and is capable of changing the potential of the second conductor in synchronization with an operation of the transistor.


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