Atomic layer deposition on optical structures

    公开(公告)号:US11629402B2

    公开(公告)日:2023-04-18

    申请号:US17184085

    申请日:2021-02-24

    Abstract: Embodiments of the present disclosure generally relate to processing an optical workpiece containing grating structures on a substrate by deposition processes, such as atomic layer deposition (ALD). In one or more embodiments, a method for processing an optical workpiece includes positioning a substrate containing a first layer within a processing chamber, where the first layer contains grating structures separated by trenches formed in the first layer, and each of the grating structures has an initial critical dimension, and depositing a second layer on at least the sidewalls of the grating structures by ALD to produce corrected grating structures separated by the trenches, where each of the corrected grating structures has a corrected critical dimension greater than the initial critical dimension.

    Post exposure processing apparatus
    124.
    发明授权

    公开(公告)号:US11262662B2

    公开(公告)日:2022-03-01

    申请号:US17062326

    申请日:2020-10-02

    Abstract: Implementations described herein relate to a platform apparatus for post exposure processing. In one implementation, a platform apparatus includes a plumbing module and a process module. The process module further includes a central region having a robot disposed therein, and a plurality of process stations disposed about the central region and sharing the plumbing module. Each process station includes a process chamber and a post process chamber in a stacked arrangement. The process chamber includes a chamber body defining a process volume, a door coupled to the chamber body, a first electrode coupled to the door, and a power source communicatively coupled to the first electrode.

    System, software application, and method for lithography stitching

    公开(公告)号:US11237485B2

    公开(公告)日:2022-02-01

    申请号:US16748202

    申请日:2020-01-21

    Abstract: Embodiments of the present disclosure relate to methods for positioning masks in a propagation direction of a light source. The masks correspond to a pattern to be written into a photoresist layer of a substrate. The masks are positioned by stitching a first mask and a second mask. The first mask includes a set of first features having first feature extensions extending therefrom at first feature interfaces. The second mask includes a set of second features having second feature extensions extending therefrom at second feature interfaces. Each first feature extension stitches with each corresponding second feature extension to form each stitched portion of a first stitched portion of the first pair of masks. The stitched portion of the first pair of masks defines a portion of the pattern to be written into the photoresist layer.

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