Invention Grant
US09053819B2 Programming method to tighten threshold voltage width with avoiding program disturb
有权
编程方法可以避免程序干扰来收紧阈值电压宽度
- Patent Title: Programming method to tighten threshold voltage width with avoiding program disturb
- Patent Title (中): 编程方法可以避免程序干扰来收紧阈值电压宽度
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Application No.: US13546553Application Date: 2012-07-11
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Publication No.: US09053819B2Publication Date: 2015-06-09
- Inventor: Teruhiko Kamei , Cuong Trinh , Atsushi Inoue , Toshiyuki Takahashi
- Applicant: Teruhiko Kamei , Cuong Trinh , Atsushi Inoue , Toshiyuki Takahashi
- Applicant Address: US TX Plano
- Assignee: SANDISK TECHNOLOGIES INC.
- Current Assignee: SANDISK TECHNOLOGIES INC.
- Current Assignee Address: US TX Plano
- Agency: Vierra Magen Marcus LLP
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G11C11/56 ; G11C16/34

Abstract:
A non-volatile storage system that performs a multi-stage programming process to program non-volatile storage to a set of data threshold voltage distributions. The multi-stage programming process includes performing a first stage of the multi-stage programming process to change threshold voltages of at least a subset of the non-volatile storage elements from an erased distribution to one or more intermediate distributions, performing an intermediate stage of the multi-stage programming process to change threshold voltages of at least some of the non-volatile storage elements to appropriate distributions of the data threshold voltage distributions, and performing a later stage of the multi-stage programming process, after performing the intermediate stage of the multi-stage programming process, to tighten only a subset of the data threshold voltage distributions.
Public/Granted literature
- US20140016415A1 PROGRAMMING METHOD TO TIGHTEN THRESHOLD VOLTAGE WIDTH WITH AVOIDING PROGRAM DISTURB Public/Granted day:2014-01-16
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