Invention Grant
- Patent Title: Multiple (multi-) level cell (MLC) non-volatile (NV) memory (NVM) matrix circuits for performing matrix computations with multi-bit input vectors
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Application No.: US15817474Application Date: 2017-11-20
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Publication No.: US10460817B2Publication Date: 2019-10-29
- Inventor: Xia Li , Seung Hyuk Kang , Wei-Chuan Chen
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: W&T/Qualcomm
- Main IPC: G11C7/00
- IPC: G11C7/00 ; G11C16/34 ; G11C11/56 ; G11C14/00 ; G11C16/04 ; H01L27/108 ; H01L29/792 ; H01L45/00 ; G06N3/063 ; G11C5/02 ; G11C5/06 ; G11C7/10 ; G11C11/54 ; G06N3/04 ; G06N3/08 ; G11C7/18 ; G11C8/14 ; H03K19/177

Abstract:
Multiple (multi-) level cell (MLC) non-volatile (NV) memory (NVM) matrix circuits for performing matrix computations with multi-bit input vectors are disclosed. An MLC NVM matrix circuit includes a plurality of NVM storage string circuits that each include a plurality of MLC NVM storage circuits each containing a plurality of NVM bit cell circuits each configured to store 1-bit memory state. Thus, each MLC NVM storage circuit stores a multi-bit memory state according to memory states of its respective NVM bit cell circuits. Each NVM bit cell circuit includes a transistor whose gate node is coupled to a word line among a plurality of word lines configured to receive an input vector. Activation of the gate node of a given NVM bit cell circuit in an MLC NVM storage circuit controls whether its resistance is contributed to total resistance of an MLC NVM storage circuit coupled to a respective source line.
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