Programming multilevel cell phase change memories
    4.
    发明申请
    Programming multilevel cell phase change memories 有权
    编程多电平单元相变存储器

    公开(公告)号:US20090244963A1

    公开(公告)日:2009-10-01

    申请号:US12080006

    申请日:2008-03-31

    IPC分类号: G11C11/00

    摘要: A multilevel phase change memory cell may have a plurality of intermediate levels between a set and a reset or a crystalline and amorphous states. These intermediate levels between set and reset may be differentiated not only by programming current, but also by different programming pulse widths. As a result, the intermediate states may be positioned, on the programming current versus programming pulse width curve, in regions of common resistance with a relatively large range of programming current.

    摘要翻译: 多电平相变存储单元可以具有集合和复位之间的多个中间电平或晶体和非晶态。 可以通过编程电流,也可以通过不同的编程脉冲宽度来区分设置和复位之间的这些中间电平。 结果,中间状态可以在编程电流与编程脉冲宽度曲线上在具有相对大的编程电流范围的公共电阻的区域中定位。