PLATE NODE CONFIGURATIONS AND OPERATIONS FOR A MEMORY ARRAY

    公开(公告)号:US20180331114A1

    公开(公告)日:2018-11-15

    申请号:US15969302

    申请日:2018-05-02

    发明人: Daniele Vimercati

    IPC分类号: H01L27/11514 G11C11/22

    摘要: Methods, systems, and devices for plate node configurations and operations for a memory array are described. A single plate node of a memory array may be coupled to multiple rows or columns of memory cells (e.g., ferroelectric memory cells) in a deck of memory cells. The single plate node may perform the functions of multiple plate nodes. The number of contacts to couple the single plate node to the substrate may be less than the number of contacts to couple multiple plate nodes to the substrate. Connectors or sockets in a memory array with a single plate node may define a size that is less than a size of the connectors or sockets with multiple plate nodes. In some examples, a single plate node of the memory array may be coupled to multiple lines of a memory cells in multiple decks of memory cells.

    THREE-DIMENSIONAL NON-VOLATILE FERROELECTRIC RANDOM ACCESS MEMORY
    10.
    发明申请
    THREE-DIMENSIONAL NON-VOLATILE FERROELECTRIC RANDOM ACCESS MEMORY 审中-公开
    三维非易失性电磁随机存取存储器

    公开(公告)号:US20160118404A1

    公开(公告)日:2016-04-28

    申请号:US14875744

    申请日:2015-10-06

    申请人: Haibing Peng

    发明人: Haibing Peng

    摘要: The present invention provides a design of three-dimensional non-volatile ferroelectric random access memory (FeRAM) devices for increasing the storage density. The key components include: (1) FeRAM device structures with (i) field-effect-transistors electrically connected either in series or in parallel as a basic memory group and (ii) a double-gate structure for implementing read/write schemes with full random access to individual memory cells, where one type of gates employs ferroelectrics layers as the gate dielectrics while the other type of gates employs conventional dielectric materials as the gate dielectrics; and (2) FeRAM device structures with stacked ferroelectric-capacitors and field-effect-transistors electrically connected in series as a basic NAND memory group. Example fabrication processes for implementing such three-dimensional FeRAM devices are also provided.

    摘要翻译: 本发明提供了一种用于提高存储密度的三维非易失性铁电随机存取存储器(FeRAM)器件的设计。 关键部件包括:(1)FeRAM器件结构,其中(i)场效应晶体管串联或并联电连接为基本存储器组,以及(ii)双栅结构,用于实现具有完整的读/写方案 随机访问单个存储器单元,其中一种类型的栅极使用铁电层作为栅极电介质,而另一种类型的栅极使用常规介电材料作为栅极电介质; 和(2)具有层叠铁电电容器和作为基本NAND存储器组串联电连接的场效应晶体管的FeRAM器件结构。 还提供了用于实现这种三维FeRAM器件的示例性制造工艺。