Invention Grant
- Patent Title: Semiconductor memory device capable of adjusting a wordline voltage for a write operation
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Application No.: US16572275Application Date: 2019-09-16
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Publication No.: US10861546B2Publication Date: 2020-12-08
- Inventor: Hyunkyu Park , Suhwan Kim , Deog-Kyoon Jeong
- Applicant: SK hynix Inc. , Seoul National University R&DB Foundation
- Applicant Address: KR Icheon KR Seoul
- Assignee: SK hynix Inc.,Seoul National University R&DB Foundation
- Current Assignee: SK hynix Inc.,Seoul National University R&DB Foundation
- Current Assignee Address: KR Icheon KR Seoul
- Priority: KR10-2018-0162760 20181217; KR10-2019-0098561 20190813
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G11C13/00

Abstract:
A semiconductor memory device includes a memory cell array including a plurality of wordlines, a plurality of bitlines and a plurality of cells; a bitline decoder configured to couple a global bitline to one of the plurality of bitlines according to a bitline selection signal; a bitline driver configured to provide bitline current to the global bitline; a wordline decoder configured to couple a global wordline to one of the plurality of wordlines according to a wordline selection signal; a wordline driver configured to provide a wordline drive voltage to the global wordline during a write operation and to adjust the wordline drive voltage according to a write address; and a write control circuit configured to generate the wordline selection signal and the bitline selection signal, and to control the bitline decoder, the wordline decoder, and the bitline driver.
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