发明公开
EP1456851A1 A PROGRAMMABLE CONDUCTOR RANDOM ACCESS MEMORY AND A METHOD FOR WRITING THERETO 有权
与可编程梯子和相关的编程进程内存随机访问

  • 专利标题: A PROGRAMMABLE CONDUCTOR RANDOM ACCESS MEMORY AND A METHOD FOR WRITING THERETO
  • 专利标题(中): 与可编程梯子和相关的编程进程内存随机访问
  • 申请号: EP02799242.9
    申请日: 2002-12-16
  • 公开(公告)号: EP1456851A1
    公开(公告)日: 2004-09-15
  • 发明人: HUSH, Glen
  • 申请人: MICRON TECHNOLOGY, INC.
  • 申请人地址: 8000 South Federal Way Boise, ID 83707-0006 US
  • 专利权人: MICRON TECHNOLOGY, INC.
  • 当前专利权人: MICRON TECHNOLOGY, INC.
  • 当前专利权人地址: 8000 South Federal Way Boise, ID 83707-0006 US
  • 代理机构: Round, Edward Mark
  • 优先权: US22722 20011220
  • 国际公布: WO2003054887 20030703
  • 主分类号: G11C11/34
  • IPC分类号: G11C11/34 G11C7/12
A PROGRAMMABLE CONDUCTOR RANDOM ACCESS MEMORY AND A METHOD FOR WRITING THERETO
摘要:
The present invention provides an improved write circuit and method for writing a programmable conductor random access memory (PCRAM) cell. The method comprises precharging a bit line to a first voltage and applying a second voltage to a first terminal of a chalcogenide memory element. A second terminal of the chalcogenide memory element is selectively coupled to the bit line to produce a voltage across the memory element sufficient to write a predetermined resistance state into the element. The first voltage may take on two different values to program two different resistance states into the memory element.
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