Invention Grant
- Patent Title: Analog sensing of memory cells in a solid state memory device
- Patent Title (中): 模拟感测固态存储器件中的存储单元
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Application No.: US11879907Application Date: 2007-07-19
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Publication No.: US07898885B2Publication Date: 2011-03-01
- Inventor: Vishal Sarin , Jung-Sheng Hoei , Frankie F. Roohparvar
- Applicant: Vishal Sarin , Jung-Sheng Hoei , Frankie F. Roohparvar
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Leffert Jay & Polglaze, P.A.
- Main IPC: G11C7/02
- IPC: G11C7/02

Abstract:
A memory device that includes a sample and hold circuit coupled to a bit line. The sample and hold circuit stores a target threshold voltage for a selected memory cell. The memory cell is programmed and then verified with a ramped read voltage. The read voltage that turns on the memory cell is stored in the sample and hold circuit. The target threshold voltage is compared with the read voltage by a comparator circuit. When the read voltage is at least substantially equal to (i.e., is substantially equal to and/or starts to exceed) the target threshold voltage, the comparator circuit generates an inhibit signal.
Public/Granted literature
- US20090021987A1 Analog sensing of memory cells in a solid state memory device Public/Granted day:2009-01-22
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