Invention Grant
US07826267B2 Method and apparatus for reading and programming a non-volatile memory cell in a virtual ground array
有权
用于读取和编程虚拟地阵列中的非易失性存储单元的方法和装置
- Patent Title: Method and apparatus for reading and programming a non-volatile memory cell in a virtual ground array
- Patent Title (中): 用于读取和编程虚拟地阵列中的非易失性存储单元的方法和装置
-
Application No.: US12126853Application Date: 2008-05-23
-
Publication No.: US07826267B2Publication Date: 2010-11-02
- Inventor: Jack Frayer , Ya-Fen Lin , Gianfranco Pellegrini , William Saiki , Changyuan Chen , Xiuhong Chen
- Applicant: Jack Frayer , Ya-Fen Lin , Gianfranco Pellegrini , William Saiki , Changyuan Chen , Xiuhong Chen
- Applicant Address: US CA Sunnyvale
- Assignee: Silicon Storage Technology, Inc.
- Current Assignee: Silicon Storage Technology, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: DLA Piper LLP ( US)
- Main IPC: G11C16/06
- IPC: G11C16/06

Abstract:
A method and apparatus for dynamic programming and dynamic reading of a select non-volatile memory cell in a virtual grounds array is disclosed. In the dynamic read operation the global bit lines and the associated local bit lines are connected to a precharged voltage. One of the first or second global bit lines is connected to a low voltage such as ground, wherein the one global bit line connected to ground also connects to the local bit line for sensing the select non-volatile memory cell. The state of the select non-volatile memory cell is detected by detecting the sense amplifier connected to the global bit line, other than the one global bit line. In a dynamic programming operation, the first and second global bit lines and their associated local bit lines are precharged to a first voltage. One of the first or second global bit line and its associated local bit lines is connected to a second voltage.
Public/Granted literature
- US20090290430A1 Method And Apparatus For Reading And Programming A Non-Volatile Memory Cell In A Virtual Ground Array Public/Granted day:2009-11-26
Information query