PHOTONIC DEVICE AND METHOD OF MANUFACTURE
    1.
    发明公开

    公开(公告)号:US20240329336A1

    公开(公告)日:2024-10-03

    申请号:US18190223

    申请日:2023-03-27

    CPC classification number: G02B6/4214

    Abstract: In some embodiments, a photonic device includes a photonic interconnect structure that includes a first cladding layer; a waveguide over the first cladding layer; a second cladding layer disposed over the waveguide; a transparent material in the first cladding layer and the second cladding layer, the transparent material includes a first sidewall adjacent to the waveguide and a second sidewall tilted with respect to the first sidewall of the transparent material; and a first reflective film over the second sidewall of the transparent material. In some embodiments, the photonic device also includes a light-receiving structure that includes a transparent protrusion above the transparent material, the transparent protrusion including a first sidewall and a second sidewall opposite to the second sidewall of the transparent protrusion; and a second reflective film over the second sidewall of the transparent protrusion and horizontally overlapping the first reflective film.

    Aperture Design and Methods Thereof
    4.
    发明申请

    公开(公告)号:US20200284954A1

    公开(公告)日:2020-09-10

    申请号:US16882094

    申请日:2020-05-22

    Abstract: A method for performing DBO measurements utilizing apertures having a single pole includes using a first aperture plate to measure X-axis diffraction of a composite grating. In some embodiments, the first aperture plate has a first pair of radiation-transmitting regions disposed along a first diametrical axis and on opposite sides of an optical axis that is aligned with a center of the first aperture plate. Thereafter, in some embodiments, a second aperture plate, which is complementary to the first aperture plate, is used to measure Y-axis diffraction of the composite grating. By way of example, the second aperture plate has a second pair of radiation-transmitting regions disposed along a second diametrical axis and on opposite sides of the optical axis. In some cases, the second diametrical axis is substantially perpendicular to the first diametrical axis.

    Noise reduction for overlay control

    公开(公告)号:US10684556B2

    公开(公告)日:2020-06-16

    申请号:US16402828

    申请日:2019-05-03

    Abstract: The present disclosure provides a method. The method includes patterning a substrate by a patterning tool; collecting a plurality of overlay errors from a plurality of fields on the substrate; identifying noise from the plurality of overlay errors by applying a first filtering operation and a second filtering operation that is different from the first filtering operation. The method further includes grouping the plurality of overlay errors that are not identified as noise into a set of filtered overlay errors; calculating an overlay compensation based on the set of filtered overlay errors; and performing a compensation process to the patterning tool according to the overlay compensation.

    Noise Reduction for Overlay Control
    7.
    发明申请

    公开(公告)号:US20180173110A1

    公开(公告)日:2018-06-21

    申请号:US15644126

    申请日:2017-07-07

    CPC classification number: G03F7/70633 G03F7/705

    Abstract: The present disclosure provides a method. The method includes patterning a substrate by a patterning tool; collecting a plurality of overlay errors from a plurality of fields on the substrate; identifying noise from the plurality of overlay errors by applying a first filtering operation and a second filtering operation that is different from the first filtering operation. The method further includes grouping the plurality of overlay errors that are not identified as noise into a set of filtered overlay errors; calculating an overlay compensation based on the set of filtered overlay errors; and performing a compensation process to the patterning tool according to the overlay compensation.

    Aperture design and methods thereof

    公开(公告)号:US10663633B2

    公开(公告)日:2020-05-26

    申请号:US15637910

    申请日:2017-06-29

    Abstract: A method for performing DBO measurements utilizing apertures having a single pole includes using a first aperture plate to measure X-axis diffraction of a composite grating. In some embodiments, the first aperture plate has a first pair of radiation-transmitting regions disposed along a first diametrical axis and on opposite sides of an optical axis that is aligned with a center of the first aperture plate. Thereafter, in some embodiments, a second aperture plate, which is complementary to the first aperture plate, is used to measure Y-axis diffraction of the composite grating. By way of example, the second aperture plate has a second pair of radiation-transmitting regions disposed along a second diametrical axis and on opposite sides of the optical axis. In some cases, the second diametrical axis is substantially perpendicular to the first diametrical axis.

    Noise reduction for overlay control

    公开(公告)号:US10281827B2

    公开(公告)日:2019-05-07

    申请号:US15644126

    申请日:2017-07-07

    Abstract: The present disclosure provides a method. The method includes patterning a substrate by a patterning tool; collecting a plurality of overlay errors from a plurality of fields on the substrate; identifying noise from the plurality of overlay errors by applying a first filtering operation and a second filtering operation that is different from the first filtering operation. The method further includes grouping the plurality of overlay errors that are not identified as noise into a set of filtered overlay errors; calculating an overlay compensation based on the set of filtered overlay errors; and performing a compensation process to the patterning tool according to the overlay compensation.

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