Invention Grant
- Patent Title: Systems and methods of determining degradation in analog compute-in-memory (ACIM) modules
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Application No.: US17347457Application Date: 2021-06-14
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Publication No.: US11782642B2Publication Date: 2023-10-10
- Inventor: Chao Sun , Tung Thanh Hoang , Dejan Vucinic
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: PATTERSON + SHERIDAN, LLP
- Agent Steven H. VerSteeg
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F11/10

Abstract:
Certain aspects of the present disclosure provide techniques for performing compute in memory (CIM) computations. A device comprises a CIM module configured to apply a plurality of analog weights to data using multiply-accumulate operations to generate an output. The device further comprises a digital weight storage unit configured to store digital weight references, wherein a digital weight reference corresponds to an analog weight of the plurality of analog weights. The device also comprises a device controller configured to program the plurality of analog weights to the CIM module based on the digital weight references and determine degradation of one or more analog weights. The digital weight references in the digital weight storage unit are populated with values from a host device. Degraded analog weights in the CIM module are replaced with corresponding digital weight references from the digital weight storage unit without reference to the host device.
Public/Granted literature
- US20220398036A1 SYSTEMS AND METHODS OF DETERMINING DEGRADATION IN ANALOG COMPUTE-IN-MEMORY (ACIM) MODULES Public/Granted day:2022-12-15
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