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:
Mar. 30, 2021
Filed:
Nov. 14, 2019
Toshiba Memory Corporation, Minato-ku, JP;
Takehiko Amaki, Yokohama, JP;
Yoshihisa Kojima, Kawasaki, JP;
Toshikatsu Hida, Yokohama, JP;
Marie Grace Izabelle Angeles Sia, Yokohama, JP;
Riki Suzuki, Yokohama, JP;
Shohei Asami, Fujisawa, JP;
Toshiba Memory Corporation, Minato-ku, JP;
Abstract
According to one embodiment, a memory system includes a semiconductor memory and a controller. The semiconductor memory includes blocks each containing memory cells. The controller is configured to instruct the semiconductor memory to execute a first operation and a second operation. In the first operation and the second operation, the semiconductor memory selects at least one of the blocks, and applies at least one voltage to all memory cells contained in said selected blocks. A number of blocks to which said voltage is applied per unit time in the second operation is larger than that in the first operation.