Invention Grant
- Patent Title: Variant operation sequences for multibit memory
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Application No.: US14857598Application Date: 2015-09-17
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Publication No.: US09627072B2Publication Date: 2017-04-18
- Inventor: Yu-Ming Chang , Yung-Chun Li , Hsiang-Pang Li , Yuan-Hao Chang , Tei-Wei Kuo
- Applicant: MACRONIX INTERNATIONAL CO., LTD.
- Applicant Address: TW Hsinchu
- Assignee: MACRONIX INTERNATIONAL CO., LTD.
- Current Assignee: MACRONIX INTERNATIONAL CO., LTD.
- Current Assignee Address: TW Hsinchu
- Agency: Haynes Beffel & Wolfeld LLP
- Main IPC: G11C16/10
- IPC: G11C16/10 ; G11C11/56 ; G11C16/08 ; G11C16/26 ; G11C16/34

Abstract:
A multiple-bit-per-cell, page mode memory comprises a plurality of physical pages, each physical page having N addressable pages p(n). Logic implements a plurality of selectable program operations to program an addressed page. Logic select one of the plurality of selectable program operations to program an addressed page in the particular physical page using a signal that indicates a logical status of another addressable page in the particular physical page. The logical status can indicate whether the other addressable page contains invalid data. The first program operation overwrites the other addressable page, and the second program operation preserves the other addressable page. The first program operation can execute more quickly than the second program operation. The logic can also be applied for programming multiple-bit-per-cell memory not configured in a page mode.
Public/Granted literature
- US20160148694A1 VARIANT OPERATION SEQUENCES FOR MULTIBIT MEMORY Public/Granted day:2016-05-26
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