Invention Grant
- Patent Title: Partial voltage read of memory
- Patent Title (中): 内存的部分电压读数
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Application No.: US14168219Application Date: 2014-01-30
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Publication No.: US09202573B2Publication Date: 2015-12-01
- Inventor: Michael J. Cornwell , Christopher P. Dudte
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G11C16/06 ; G06F11/10 ; G11C16/26 ; G11C29/04

Abstract:
A partial voltage level read is made on memory cells of a solid state memory device during a voltage settling time after the memory cells are charged (e.g., by a pulse from a charge pump). Digital values representing partial voltage levels are checked for errors (e.g., by an error correction code (ECC) engine). If the values can be corrected, then the values are released for host access. If the values cannot be corrected, then a full voltage read is performed on the memory cells after the voltage levels have substantially settled. Digital values corresponding to the full voltage reads can be released for host access. The use of partial voltage reads results in faster read of solid state memory devices.
Public/Granted literature
- US20140146604A1 Partial Voltage Read of Memory Public/Granted day:2014-05-29
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