Invention Grant
- Patent Title: Independent multi-plane read and low latency hybrid read
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Application No.: US15628417Application Date: 2017-06-20
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Publication No.: US10043558B2Publication Date: 2018-08-07
- Inventor: Grishma Shah , Yan Li , Jian Chen , Kenneth Louie , Nian Niles Yang
- 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: G11C7/10
- IPC: G11C7/10 ; G11C11/56 ; G11C16/04 ; G11C16/26

Abstract:
Read operations are performed in a multi-plane memory device. A state machine interfaces an external controller to each plane of memory cells to allow reading from selected word lines in the planes. In one approach, different types of read operations are performed in different planes, such as a multi-level cell read, e.g., a lower, middle or upper page read and a single-level cell (SLC) read. When the read operation in one plane uses fewer read voltages than another plane, the read data can be output early from the one plane while read operations continue on the other plane. The external controller can also command a cache release for one plane after outputting data from the caches of another plane. Read voltages can be set for each plane in a respective set of registers.
Public/Granted literature
- US20170309340A1 Independent Multi-Plane Read And Low Latency Hybrid Read Public/Granted day:2017-10-26
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