Invention Grant
- Patent Title: Location dependent impedance mitigation in non-volatile memory
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Application No.: US16400280Application Date: 2019-05-01
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Publication No.: US10910064B2Publication Date: 2021-02-02
- Inventor: Peter Rabkin , Kwang-Ho Kim , Masaaki Higashitani
- Applicant: SanDisk Technologies LLC
- Applicant Address: US TX Addison
- Assignee: SanDisk Technologies LLC
- Current Assignee: SanDisk Technologies LLC
- Current Assignee Address: US TX Addison
- Agency: Vierra Magen Marcus LLP
- Main IPC: G11C16/24
- IPC: G11C16/24 ; G11C16/04 ; G11C16/32 ; G11C16/34 ; G11C16/08 ; G11C16/14 ; H01L27/11582 ; H01L27/11556

Abstract:
An apparatus comprising strings of non-volatile memory cells, a first set of pathways connected to the strings, and a second set of pathways connected to the strings. The first set of pathways have first impedances that depend on location of respective strings. The second set of pathways having second impedances. The apparatus also includes one or more control circuits configured to compensate for location dependent impedance mismatch between the first set of pathways and the second set of pathways during memory operations on the non-volatile memory cells.
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