Angled etch to enable tin removal from selected sidewalls

    公开(公告)号:US12266729B2

    公开(公告)日:2025-04-01

    申请号:US17485162

    申请日:2021-09-24

    Abstract: A method of fabricating an integrated circuit structure comprises depositing an oxide insulator layer over a substrate having fins. A gate trench is formed within the oxide insulator layer with the fins extending above a surface of the oxide insulator layer within the gate trench. A semiconducting oxide material is deposited to conformally cover the oxide insulator layer, including on top surfaces and sidewalls of both the gate trench and the fins. A gate material is deposited to conformally cover the semiconducting oxide material, including on top surfaces and sidewalls of both the gate trench and the fins. An angled etch is performed to remove the gate material selective to the semiconducting oxide material from sidewalls of the gate trench, but not from sidewalls of the fins.

    Vertical memory control circuitry located in interconnect layers

    公开(公告)号:US10886286B2

    公开(公告)日:2021-01-05

    申请号:US16146938

    申请日:2018-09-28

    Abstract: An embodiment includes a substrate having a surface; a first layer that includes a metal and is on the substrate; a second layer that includes the metal and is on the first layer; a first switching device between the first and second layers; a second switching device between the first and second layers; a capacitor between the first and second layers, the capacitor including ferroelectric materials; a memory cell that includes the first switching device and the capacitor; an interconnect line that couples the first and second switching devices to each other; wherein: (a) the surface is substantially disposed in a first plane, and (b) a second plane is parallel to the first plane, the second plane intersecting the first and second switching devices. Other embodiments are addressed herein.

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