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:
Apr. 03, 2018
Filed:
Mar. 08, 2017
Toshiba Memory Corporation, Minato-ku, JP;
Takashi Ishida, Yokkaichi, JP;
TOSHIBA MEMORY CORPORATION, Minato-ku, JP;
Abstract
A semiconductor memory device includes first to fourth electrodes; first and second semiconductor members; a first charge storage member provided between the first semiconductor member and the first electrode; a first interconnect connected to the second electrode side of the first semiconductor member and to the fourth electrode side of the second semiconductor member; and a control circuit. The control circuit sets the first interconnect to a floating state, causes a potential of the third electrode side of the second semiconductor member to increase to a first potential, causes the potential of the third electrode to increase to a second potential lower than the first potential, causes the potential of the second electrode to increase to a third potential lower than the first potential, applies a fourth potential lower than the second and the third potentials to the first electrode, and sets the fourth electrode to a floating state.