Invention Grant
- Patent Title: Coarse and fine programming in a solid state memory
- Patent Title (中): 粗体和精细编程在固态存储器中
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Application No.: US13094409Application Date: 2011-04-26
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Publication No.: US08259491B2Publication Date: 2012-09-04
- Inventor: Frankie F. Roohparvar , Vishal Sarin , Jung S. Hoei
- Applicant: Frankie F. Roohparvar , Vishal Sarin , Jung S. Hoei
- 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: G11C16/04
- IPC: G11C16/04

Abstract:
Memory devices adapted to receive and transmit analog data signals representative of bit patterns of two or more bits facilitate increases in data transfer rates relative to devices communicating data signals indicative of individual bits. Programming of such memory devices includes initially programming a cell with a coarse programming pulse to move its threshold voltage in a large step close to the programmed state. The neighboring cells are then programmed using coarse programming. The algorithm then returns to the initially programmed cells that are then programmed with one or more fine pulses that slowly move the threshold voltage in smaller steps to the final programmed state threshold voltage.
Public/Granted literature
- US20110199831A1 COARSE AND FINE PROGRAMMING IN A SOLID STATE MEMORY Public/Granted day:2011-08-18
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