Optical device improvement
    6.
    发明授权

    公开(公告)号:US12249489B2

    公开(公告)日:2025-03-11

    申请号:US18131997

    申请日:2023-04-07

    Abstract: A method of processing an optical device is provided, including: positioning an optical device on a substrate support in an interior volume of a process chamber, the optical device including an optical device substrate and a plurality of optical device structures formed over the optical device substrate, each optical device structure including a bulk region formed of silicon carbide and one or more surface regions formed of silicon oxycarbide. The method further includes providing one or more process gases to the interior volume of the process chamber, and generating a plasma of the one or more process gases in the interior volume for a first time period when the optical device is on the substrate support, and stopping the plasma after the first time period. A carbon content of the one or more surface regions of each optical device structure is reduced by at least 50% by the plasma.

    Method for forming a layer
    7.
    发明授权

    公开(公告)号:US10957590B2

    公开(公告)日:2021-03-23

    申请号:US16669082

    申请日:2019-10-30

    Abstract: Implementations of the present disclosure generally relate to the fabrication of integrated circuits, and more particularly, to methods for forming a layer. The layer may be a mask used in lithography process to pattern and form a trench. The mask is formed over a substrate having at least two distinct materials by a selective deposition process. The edges of the mask are disposed on an intermediate layer formed on at least one of the two distinct materials. The method includes removing the intermediate layer to form a gap between edges of the mask and the substrate and filling the gap with a different material than the mask or with the same material as the mask. By filling the gap with the same or different material as the mask, electrical paths are improved.

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