Invention Grant
- Patent Title: Resistance change memory cell circuits and methods
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Application No.: US17133007Application Date: 2020-12-23
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Publication No.: US11380396B2Publication Date: 2022-07-05
- Inventor: Brent Steven Haukness
- Applicant: HEFEI RELIANCE MEMORY LIMITED
- Applicant Address: CN Hefei
- Assignee: HEFEI RELIANCE MEMORY LIMITED
- Current Assignee: HEFEI RELIANCE MEMORY LIMITED
- Current Assignee Address: CN Hefei
- Agency: Sheppard Mullin Richter & Hampton LLP
- Main IPC: G11C13/00
- IPC: G11C13/00 ; G11C8/08

Abstract:
The gate of the access transistor of a 1 transistor 1 resistor (1T1R) type RRAM cell is biased relative to the source of the access transistor using a current mirror. Under the influence of a voltage applied across the 1T1R cell (e.g., via the bit line), the RRAM memory element switches from a higher resistance to a lower resistance. As the RRAM memory element switches from the higher resistance to the lower resistance, the current through the RRAM cell switches from being substantially determined by the higher resistance of the RRAM device (while the access transistor is operating in the linear region) to being substantially determined by the saturation region operating point of the access transistor.
Public/Granted literature
- US20210118504A1 RESISTANCE CHANGE MEMORY CELL CIRCUITS AND METHODS Public/Granted day:2021-04-22
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