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:
Jul. 01, 2025
Filed:
Jul. 22, 2020
Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;
Shunpei Yamazaki, Setagaya, JP;
Hajime Kimura, Atsugi, JP;
Takanori Matsuzaki, Atsugi, JP;
Tatsuya Onuki, Atsugi, JP;
Yuki Okamoto, Isehara, JP;
Hideki Uochi, Atsugi, JP;
Satoru Okamoto, Isehara, JP;
Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;
Abstract
A highly reliable memory device is provided. On a side surface of a first conductor extending in a first direction, a first insulator, a first semiconductor, a second insulator, a second semiconductor, and a third insulator are provided in this order when seen from the first conductor side. The first conductor is provided with a first region overlapping with a second conductor with the first insulator, the first semiconductor, the second insulator, the second semiconductor, and the third insulator provided therebetween, and a second region overlapping with a third conductor with the first insulator, the first semiconductor, the second insulator, the second semiconductor, and the third insulator provided therebetween. In the second region, a fourth conductor is provided between the first insulator and the first semiconductor.