Memory Systems and Memory Programming Methods

    公开(公告)号:US20190074060A1

    公开(公告)日:2019-03-07

    申请号:US16176417

    申请日:2018-10-31

    Abstract: Memory systems and memory programming methods are described. According to one arrangement, a memory system includes a memory array comprising a plurality of memory cells individually configured to have a plurality of different memory states, access circuitry configured to apply signals to the memory cells to program the memory cells to the different memory states, and a controller to configured to control the access circuitry to apply a first of the signals to one of the memory cells to program the one memory cell from a first memory state to a second memory state different than the first memory state, to determine that the one memory cell failed to place into the second memory state as a result of the application of the first signal, and to control the access circuitry to apply a second signal to the one memory cell to program the one memory cell from the first memory state to the second memory state as a result of the determination, wherein the first and second signals have a different electrical characteristic.

    Memory Arrays and Methods of Forming Memory Cells

    公开(公告)号:US20180123035A1

    公开(公告)日:2018-05-03

    申请号:US15857448

    申请日:2017-12-28

    Abstract: Some embodiments include methods of forming memory cells. A series of rails is formed to include bottom electrode contact material. Sacrificial material is patterned into a series of lines that cross the series of rails. A pattern of the series of lines is transferred into the bottom electrode contact material. At least a portion of the sacrificial material is subsequently replaced with top electrode material. Some embodiments include memory arrays that contain a second series of electrically conductive lines crossing a first series of electrically conductive lines. Memory cells are at locations where the electrically conductive lines of the second series overlap the electrically conductive lines of the first series. First and second memory cell materials are within the memory cell locations. The first memory cell material is configured as planar sheets and the second memory cell material is configured as upwardly-opening containers.

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