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. 24, 2019
Filed:
Jul. 27, 2016
Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;
Shunpei Yamazaki, Tokyo, JP;
Kiyoshi Kato, Kanagawa, JP;
Hidekazu Miyairi, Kanagawa, JP;
Akihisa Shimomura, Kanagawa, JP;
Atsushi Hirose, Kanagawa, JP;
Abstract
A novel semiconductor device or memory device is provided. Alternatively, a semiconductor device or memory device in which storage capacity per unit area is large is provided. The semiconductor device includes a sense amplifier provided to a semiconductor substrate and a memory cell provided over the sense amplifier. The sense amplifier includes a first transistor. The memory cell includes a capacitor over the semiconductor substrate, a second transistor provided over the capacitor, a conductor, and a groove portion. The capacitor includes a first electrode and a second electrode. The first electrode is formed along the groove portion. The second electrode has a region facing the first electrode in the groove portion. The second transistor includes an oxide semiconductor. One of a source and a drain of the second transistor is electrically connected to the second electrode through the conductor.