METHOD OF PROGRAMMING NONVOLATILE MEMORY CELL

    公开(公告)号:US20190080778A1

    公开(公告)日:2019-03-14

    申请号:US16125779

    申请日:2018-09-10

    摘要: A method of programming a nonvolatile memory cell is provided according to an embodiment of the invention. The nonvolatile memory cell includes a substrate; and a select transistor, a following gate transistor, and an anti-fuse transistor comprising a first gate oxide layer, disposed on the substrate and coupled in series with each other. The programming method includes applying to said nonvolatile memory cell a variable DC voltage source comprising at least one high voltage part for forming a trapping path within the first gate oxide layer and at least one low voltage part for crystallizing the trapping path into a silicon filament.

    Memory device and manufacturing method thereof

    公开(公告)号:US10692981B2

    公开(公告)日:2020-06-23

    申请号:US16286609

    申请日:2019-02-27

    摘要: A memory device and a manufacturing method thereof are provided. The memory device includes a first gate structure, a second gate structure, an oxide layer and a nitride layer. The first gate structure and the second gate structure are disposed on a substrate. The oxide layer covers the first gate structure. The nitride layer is disposed on the substrate and covers the oxide and the second gate structure. The refraction index of a portion of the nitride layer adjacent to an interface between the nitride layer and each of the first gate structure and the second gate structure is about 5% to 10% less than the refraction index of the remaining portion of the nitride layer.

    MEMORY DEVICE AND MANUFACTURING METHOD THEREOF

    公开(公告)号:US20190326304A1

    公开(公告)日:2019-10-24

    申请号:US16286609

    申请日:2019-02-27

    IPC分类号: H01L27/11517 H01L21/28

    摘要: A memory device and a manufacturing method thereof are provided. The memory device includes a first gate structure, a second gate structure, an oxide layer and a nitride layer. The first gate structure and the second gate structure are disposed on a substrate. The oxide layer covers the first gate structure. The nitride layer is disposed on the substrate and covers the oxide and the second gate structure. The refraction index of a portion of the nitride layer adjacent to an interface between the nitride layer and each of the first gate structure and the second gate structure is about 5% to 10% less than the refraction index of the remaining portion of the nitride layer.