- Patent Title: Magnetoresistive memory device with different write pulse patterns
-
Application No.: US16400048Application Date: 2019-05-01
-
Publication No.: US10910032B2Publication Date: 2021-02-02
- Inventor: Tatsuya Kishi , Tsuneo Inaba , Daisuke Watanabe , Masahiko Nakayama , Nobuyuki Ogata , Masaru Toko , Hisanori Aikawa , Jyunichi Ozeki , Toshihiko Nagase , Young Min Eeh , Kazuya Sawada
- Applicant: TOSHIBA MEMORY CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz & Volek PC
- Main IPC: G11C11/16
- IPC: G11C11/16 ; G11C7/10

Abstract:
A memory device includes a magnetoresistive element including first and second magnetic layers and a non-magnetic layer provided between the first and second magnetic layers. The memory device also includes a write circuit which controls a first writing setting magnetization of the first and second magnetic layers in a parallel state and a second writing setting the magnetization of the first and second magnetic layers in an antiparallel state, and applies a write current to the magnetoresistive element. A first write current in the first writing includes a first pulse and a second pulse added to the first pulse. A width of the second pulse is smaller than a width of the first pulse, and a current level of the second pulse is different from a current level of the first pulse.
Public/Granted literature
- US20190259438A1 MAGNETORESISTIVE MEMORY DEVICE WITH DIFFERENT WRITE PULSE PATTERNS Public/Granted day:2019-08-22
Information query