SEALED RESISTIVE CHANGE ELEMENTS
    5.
    发明申请

    公开(公告)号:US20180226578A1

    公开(公告)日:2018-08-09

    申请号:US15486032

    申请日:2017-04-12

    申请人: Nantero, Inc.

    IPC分类号: H01L45/00 H01L27/24

    摘要: Methods for scaling dimensions of resistive change elements, resistive change element arrays of scalable resistive change elements, and sealed resistive change elements are disclosed. According to some aspects of the present disclosure the methods for scaling dimensions of resistive change elements and the resistive change element arrays of scalable resistive change elements reduce the impact of overlapping materials on the switching characteristics of resistive change elements. According to some aspects of the present disclosure the methods for scaling dimensions of resistive change elements include sealing surfaces of resistive change elements. According to some aspects of the present disclosure the methods for scaling dimensions of resistive change elements include forming barriers to copper migration in a copper back end of the line.

    VARIABLE-RESISTANCE ELEMENT AND METHOD OF MANUFACTURING VARIABLE-RESISTANCE ELEMENT AND SEMICONDUCTOR DEVICE

    公开(公告)号:US20170309817A1

    公开(公告)日:2017-10-26

    申请号:US15523435

    申请日:2015-11-18

    申请人: NEC Corporation

    IPC分类号: H01L45/00

    摘要: The objective of the present invention is to make it possible to manufacture, with a high yield, a metal deposition type variable-resistance element with which variability of a program voltage and a leakage current under a high resistance state is reduced, while the program voltage is reduced. This variable-resistance element comprises: a first electrode which is embedded in a first insulating film and which supplies metal ions, an upper surface of the first electrode being exposed out of the first insulating film by means of an opening portion in a second insulating film covering the first insulating film; a metal deposition type variable-resistance film which covers the opening portion and is in contact with the upper surface of the first electrode; and a second electrode in contact with the upper surface of the variable-resistance film. The width of the opening portion is greater than the width of the upper surface of the first electrode, and the edge portions of the opening portion are provided in such a way that there is a margin between the edge portions of the opening portion and the edge portions of the upper surface of the first electrode which face the edge portions of the opening portion.