Invention Grant
- Patent Title: Timed multiplex sensing
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Application No.: US14887547Application Date: 2015-10-20
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Publication No.: US09245599B1Publication Date: 2016-01-26
- Inventor: Anurag Nigam , Gopinath Balakrishnan
- Applicant: SANDISK 3D LLC
- Applicant Address: US CA Milpitas
- Assignee: SANDISK 3D LLC
- Current Assignee: SANDISK 3D LLC
- Current Assignee Address: US CA Milpitas
- Agency: Vierra Magen Marcus LLP
- Main IPC: G11C13/00
- IPC: G11C13/00 ; G11C7/08 ; G11C16/26 ; G11C16/04

Abstract:
Methods for determining memory cell states during a read operation using a detection scheme that reduces the area of detection circuitry for detecting the states of the memory cells by time multiplexing the use of portions of the detection circuitry are described. The read operation may include a precharge phase, a sensing phase, and a detection phase. In some embodiments, a first bit line and a second bit line may be precharged to a read voltage in parallel, and then sensing and/or detection of selected memory cells corresponding with the first bit line and the second bit line may be performed serially using the same detection circuitry by time multiplexing the use of the detection circuitry. In some cases, the time multiplexed detection circuitry may be used for detecting two or more states corresponding with two or more memory cells being sensed during a read operation.
Public/Granted literature
- US20160042771A1 TIMED MULTIPLEX SENSING Public/Granted day:2016-02-11
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