1TnC memory bit-cell having stacked and folded non-planar capacitors

    公开(公告)号:US12041785B1

    公开(公告)日:2024-07-16

    申请号:US17654383

    申请日:2022-03-10

    IPC分类号: H10B53/30

    CPC分类号: H10B53/30

    摘要: A configuration for efficiently placing a group of capacitors with one terminal connected to a common node is described. The capacitors are stacked and folded along the common node. In a stack and fold configuration, devices are stacked vertically (directly or with a horizontal offset) with one terminal of the devices being shared to a common node, and further the capacitors are placed along both sides of the common node. The common node is a point of fold. In one example, the devices are capacitors. N number of capacitors can be divided in L number of stack layers such that there are N/L capacitors in each stacked layer. The N/L capacitors are shorted together with an electrode (e.g., bottom electrode). The electrode can be metal, a conducting oxide, or a combination of a conducting oxide and a barrier material. The capacitors can be planar, non-planar or replaced by memory elements.

    1TnC memory bit-cell having stacked and folded planar capacitors with lateral offset

    公开(公告)号:US11997853B1

    公开(公告)日:2024-05-28

    申请号:US17654379

    申请日:2022-03-10

    IPC分类号: H10B53/30

    CPC分类号: H10B53/30

    摘要: A configuration for efficiently placing a group of capacitors with one terminal connected to a common node is described. The capacitors are stacked and folded along the common node. In a stack and fold configuration, devices are stacked vertically (directly or with a horizontal offset) with one terminal of the devices being shared to a common node, and further the capacitors are placed along both sides of the common node. The common node is a point of fold. In one example, the devices are capacitors. N number of capacitors can be divided in L number of stack layers such that there are N/L capacitors in each stacked layer. The N/L capacitors are shorted together with an electrode (e.g., bottom electrode). The electrode can be metal, a conducting oxide, or a combination of a conducting oxide and a barrier material. The capacitors can be planar, non-planar or replaced by memory elements.

    DOPED POLAR LAYERS AND SEMICONDUCTOR DEVICE INCORPORATING SAME

    公开(公告)号:US20240088299A1

    公开(公告)日:2024-03-14

    申请号:US18514998

    申请日:2023-11-20

    摘要: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor, which in turn comprises a polar layer comprising a crystalline base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen, wherein the dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor additionally comprises first and second crystalline conductive or semiconductive oxide electrodes on opposing sides of the polar layer, wherein the polar layer has a lattice constant that is matched within about 20% of a lattice constant of one or both of the first and second crystalline conductive or semiconductive oxide electrodes. The first crystalline conductive or semiconductive oxide electrode serves as a template for growing the polar layer thereon, such that at least a portion of the polar layer is pseudomorphically formed on the first crystalline conductive or semiconductive oxide electrode.