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:
Jun. 24, 2025
Filed:
Aug. 27, 2021
Kioxia Corporation, Tokyo, JP;
Yukihisa Futami, Yokohama Kanagawa, JP;
Yasuhiro Hegi, Kawasaki Kanagawa, JP;
Kenichi Kawabata, Chigasaki Kanagawa, JP;
Tsuyoshi Etou, Yokohama Kanagawa, JP;
Haruyuki Miyata, Ayase Kanagawa, JP;
Kenichi Sugawara, Yokohama Kanagawa, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A semiconductor storage device includes a memory cell array and a peripheral circuit disposed at least partially below the memory cell array. The peripheral circuit includes an RC circuit in which a resistive portion and a capacitive portion are electrically connected to each other in series. The resistive portion includes first and second lower conductors at a level that is below the memory cell array, an upper conductor at a level that is above the memory cell array, a first contact that connects the first lower conductor to the upper conductor, and a second contact that connects the upper conductor to the second lower conductor. The first lower conductor, the first contact, the upper conductor, the second contact, and the second lower conductor are electrically connected in series in this order and the first lower conductor is closest to the capacitive portion.