Method and system for non-destructive metrology of thin layers

    公开(公告)号:US11906451B2

    公开(公告)日:2024-02-20

    申请号:US17448081

    申请日:2021-09-20

    Abstract: A monitoring system and method are provided for determining at least one property of an integrated circuit (IC) comprising a multi-layer structure formed by at least a layer on top of an underlayer. The monitoring system receives measured data comprising data indicative of optical measurements performed on the IC, data indicative of x-ray photoelectron spectroscopy (XPS) measurements performed on the IC and data indicative of x-ray fluorescence spectroscopy (XRF) measurements performed on the IC. An optical data analyzer module analyzes the data indicative of the optical measurements and generates geometrical data indicative of one or more geometrical parameters of the multi-layer structure formed by at least the layer on top of the underlayer. An XPS data analyzer module analyzes the data indicative of the XPS measurements and generates geometrical and material related data indicative of geometrical and material composition parameters for said layer and data indicative of material composition of the underlayer. An XRF data analyzer module analyzes the data indicative of the XRF measurements and generates data indicative of amount of a predetermined material composition in the multi-layer structure. A data interpretation module generates combined data received from analyzer modules and processes the combined data and determines the at least one property of at least one layer of the multi-layer structure.

    PEAK VOLTAGE DETECTION CIRCUIT WITH REDUCED CHARGE LOSS

    公开(公告)号:US20240036087A1

    公开(公告)日:2024-02-01

    申请号:US17815961

    申请日:2022-07-29

    CPC classification number: G01R19/04

    Abstract: Embodiments of the disclosure provide a peak voltage detection circuit with reduced charge loss. A circuit structure of the disclosure includes a peak voltage detector having a first input node coupled to an input line and a second input node coupled to a first electrically actuated switch. The peak voltage detector coupling the first input node and the second input node to an output node, and a second electrically actuated switch coupling the output node of the peak voltage detector to a capacitor. The first electrically actuated switch couples the capacitor to the second input node of the peak voltage detector. The input line is coupled to a control node of the first electrically actuated switch and a control node of the second electrically actuated switch.

    Slotted waveguides including a metamaterial structure

    公开(公告)号:US11886021B2

    公开(公告)日:2024-01-30

    申请号:US17705911

    申请日:2022-03-28

    Inventor: Yusheng Bian

    CPC classification number: G02B6/4203 G02B6/12002 G02B6/1228 G02B6/13 G02B6/305

    Abstract: Photonics structures including a slotted waveguide and methods of fabricating such photonics structures. The photonics structure includes a slotted waveguide having a first waveguide core and a second waveguide core laterally positioned adjacent to the first waveguide core. The first waveguide core is separated from the second waveguide core by a slot. The photonics structure further includes a metamaterial structure having a plurality of elements separated by a plurality of gaps and a dielectric material in the plurality of gaps. The metamaterial structure and the slot of the slotted waveguide are positioned with an overlapping arrangement.

    PCELL VERIFICATION
    120.
    发明公开
    PCELL VERIFICATION 审中-公开

    公开(公告)号:US20240028811A1

    公开(公告)日:2024-01-25

    申请号:US17813344

    申请日:2022-07-19

    CPC classification number: G06F30/398 G06F30/392

    Abstract: A process design kit (PDK) is supplied to a layout design tool. The PDK includes parameterized cells (Pcells) adapted to cause the layout design tool to automatically add labels to device layouts in the graphic design system (GDS) file that is being created by the layout design tool. Each corresponding label lists parameters used when creating the corresponding device layout. The GDS file is receive back from the layout design tool. The parameters from the labels is applied to corresponding ones of the Pcells within the PDK to create a device verification layout for each of the device layouts in the GDS file. Each of the device layouts in the GDS file is compared to a corresponding device verification layout. The device layouts within the GDS file that fail to match the corresponding device verification layout are thereby identified.

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