Invention Grant
- Patent Title: Sense circuit for RRAM
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Application No.: US14953866Application Date: 2015-11-30
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Publication No.: US09728253B2Publication Date: 2017-08-08
- Inventor: Koying Huang
- Applicant: Winbond Electronics Corp.
- Applicant Address: TW Taichung
- Assignee: WINDBOND ELECTRONICS CORP.
- Current Assignee: WINDBOND ELECTRONICS CORP.
- Current Assignee Address: TW Taichung
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Main IPC: G11C13/00
- IPC: G11C13/00

Abstract:
A resistive random-access memory device includes a RRAM array including a plurality of RRAM cells coupled to a source line, a controller, a bit-line decoder, and a sense circuit. Each of the RRAM cells storing a logic state and is selected by the corresponding bit line and word line. The controller selects a selected RRAM cell by a bit-line signal and a selected word line and determines the logic state according to a sense signal. The bit-line decoder couples a data bit line to the selected bit line according to a bit-line signal. The sense circuit is coupled to the data bit line and compares a memory current flowing through the selected RRAM with a reference current to generate the sense signal. The sense circuit sinks the memory current from the data bit line when operating in a reset operation and a reverse read operation.
Public/Granted literature
- US20170154674A1 SENSE CIRCUIT FOR RRAM Public/Granted day:2017-06-01
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