Invention Grant
- Patent Title: Multi-level operation in nitride storage memory cell
- Patent Title (中): 氮化物存储单元中的多级操作
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Application No.: US11489475Application Date: 2006-07-20
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Publication No.: US07656704B2Publication Date: 2010-02-02
- Inventor: Po-An Chen , Yu-Kuo Yang , Tzu-Ching Chuang , Hsiu-Han Liao
- Applicant: Po-An Chen , Yu-Kuo Yang , Tzu-Ching Chuang , Hsiu-Han Liao
- Applicant Address: TW Hsinchu
- Assignee: Winbond Electronics Corp.
- Current Assignee: Winbond Electronics Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Finnegan, Henderson, Farabow, Garrett, Dunner, LLP
- Main IPC: G11C11/34
- IPC: G11C11/34

Abstract:
A method for programming a multi-level nitride storage memory cell capable of storing different programming states corresponding to multiple different threshold voltage levels includes providing a variable resistance capable of providing a plurality of different resistance values; connecting a drain side of the nitride storage memory cell to a selected one of the plurality of resistance values that corresponds to one of the multiple threshold voltage levels; and programming the nitride storage memory cell to store one of the program states corresponding to the one of the threshold voltage levels by applying a programming voltage to the drain side through the selected resistance.
Public/Granted literature
- US20080019181A1 Multi-level operation in nitride storage memory cell Public/Granted day:2008-01-24
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