Invention Grant
US07751231B2 Method and integrated circuit for determining the state of a resistivity changing memory cell
失效
用于确定电阻率变化的存储单元的状态的方法和集成电路
- Patent Title: Method and integrated circuit for determining the state of a resistivity changing memory cell
- Patent Title (中): 用于确定电阻率变化的存储单元的状态的方法和集成电路
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Application No.: US12115433Application Date: 2008-05-05
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Publication No.: US07751231B2Publication Date: 2010-07-06
- Inventor: Peter Schrogmeier , Ulrich Klostermann
- Applicant: Peter Schrogmeier , Ulrich Klostermann
- Applicant Address: DE Munich
- Assignee: Qimonda AG
- Current Assignee: Qimonda AG
- Current Assignee Address: DE Munich
- Agency: Dicke, Billig & Czaja, PLLC
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
A method and an integrated circuit for determining the state of a resistivity changing memory cell. In one embodiment the method includes detecting a first resistance of the resistivity changing memory cell, determining whether the first resistance value is smaller than a predetermined threshold value thereby determining a first result value, initializing the resistivity changing memory cell into one of at least four resistivity changing memory states, detecting a second resistance value of the resistivity changing memory cell, determining whether the second resistance value is smaller than the predetermined threshold value determining a second result value, and determining the state of the resistivity changing memory cell state using the first and the second result values.
Public/Granted literature
- US20090273967A1 METHOD AND INTEGRATED CIRCUIT FOR DETERMINING THE STATE OF A RESISTIVITY CHANGING MEMORY CELL Public/Granted day:2009-11-05
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