- Patent Title: Two-bit magnetoresistive random-access memory device architecture
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Application No.: US17168891Application Date: 2021-02-05
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Publication No.: US11437083B2Publication Date: 2022-09-06
- Inventor: Ashim Dutta , Eric Raymond Evarts
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Kelli D. Morin
- Main IPC: G11C11/16
- IPC: G11C11/16 ; H01L27/22 ; H01L43/12 ; H01L43/02

Abstract:
A magnetoresistive random-access memory (MRAM) device includes a first cell selectively connected to a first bit line and a second cell selectively connected to a second bit line. The MRAM device further includes a shared transistor connected to the first cell and connected to the second cell. The MRAM device further includes a first selector device and a second selector device. The first selector device is configured to permit current to flow through the first cell to the shared transistor when a voltage applied to the first selector device is larger than a threshold activation voltage. The second selector device is configured to permit current to flow through the second cell to the shared transistor when a voltage applied to the second selector device is larger than a threshold activation voltage. The MRAM cell further includes a word line connected to a gate of the shared transistor.
Public/Granted literature
- US20220254396A1 TWO-BIT MAGNETORESISTIVE RANDOM-ACCESS MEMORY DEVICE ARCHITECTURE Public/Granted day:2022-08-11
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