Write Enhancement for One Time Programmable (OTP) Semiconductors
    7.
    发明申请
    Write Enhancement for One Time Programmable (OTP) Semiconductors 有权
    一次可编程(OTP)半导体的写增强

    公开(公告)号:US20160379720A1

    公开(公告)日:2016-12-29

    申请号:US15154911

    申请日:2016-05-13

    IPC分类号: G11C17/18 G11C17/16

    CPC分类号: G11C17/18 G11C17/16

    摘要: A method of programming one-time programmable (OTP) memory cells in an array is described. Each memory cell has a MOSFET programming element and a MOSFET pass transistor, the MOSFET pass transistor having a gate electrode over a channel region between two source/drain regions, and the MOSFET programming element having a gate electrode over a channel region contiguous to a source/drain region either part of, or connected to, one of the two source/drains associated with the MOSFET pass transistor. The other source/drain region of the MOSFET pass transistor is coupled to a bit line. The memory cell is programmed by setting a first voltage of a first polarity on the gate electrode of the pass transistor to electrically connect the source/drain regions of the pass transistor; setting a second voltage of the first polarity on the gate electrode of the programming element; and setting a third voltage of a second polarity on the bit line. The voltage across an oxide layer between the gate electrode and channel region of the programming element ruptures the oxide layer and effectively programs the programming element.

    摘要翻译: 描述了在阵列中编程一次性可编程(OTP)存储器单元的方法。 每个存储单元具有MOSFET编程元件和MOSFET通过晶体管,MOSFET通过晶体管在两个源极/漏极区域之间的沟道区域上具有栅电极,并且MOSFET编程元件在与源极相邻的沟道区域上具有栅电极 /漏极区域是与MOSFET通过晶体管相关联的两个源极/漏极中的一个的一部分或与其连接的漏极区域。 MOSFET通过晶体管的另一个源极/漏极区域耦合到位线。 通过在传输晶体管的栅电极上设置第一极性的第一电压来对存储单元进行编程,以电连接传输晶体管的源极/漏极区; 在编程元件的栅电极上设置第一极性的第二电压; 并在位线上设置第二极性的第三电压。 编程元件的栅电极和沟道区之间的氧化层两端的电压使氧化层破裂并有效地编程编程元件。