Mask orientation
    41.
    发明授权

    公开(公告)号:US11630251B2

    公开(公告)日:2023-04-18

    申请号:US17571039

    申请日:2022-01-07

    Abstract: A method of forming patterned features on a substrate is provided. The method includes positioning a plurality of masks arranged in a mask layout over a substrate. The substrate is positioned in a first plane and the plurality of masks are positioned in a second plane, the plurality of masks in the mask layout have edges that each extend parallel to the first plane and parallel or perpendicular to an alignment feature on the substrate, the substrate includes a plurality of areas configured to be patterned by energy directed through the masks arranged in the mask layout. The method further includes directing energy towards the plurality of areas through the plurality of masks arranged in the mask layout over the substrate to form a plurality of patterned features in each of the plurality of areas.

    Method of thin film deposition in trenches

    公开(公告)号:US11572619B2

    公开(公告)日:2023-02-07

    申请号:US16795232

    申请日:2020-02-19

    Abstract: Embodiments of the present disclosure generally relate to processing a workpiece containing a substrate during deposition, etching, and/or curing processes with a mask to have localized deposition on the workpiece. A mask is placed on a first layer of a workpiece, which protects a plurality of trenches from deposition of a second layer. In some embodiments, the mask is placed before deposition of the second layer. In other embodiments, the second layer is cured before the mask is deposited. In other embodiments, the second layer is etched after the mask is deposited. Methods disclosed herein allow the deposition of a second layer in some of the trenches present in the workpiece, while at least partially preventing deposition of the second layer in other trenches present in the workpiece.

    Method for manufacturing optical device structures

    公开(公告)号:US11487058B2

    公开(公告)日:2022-11-01

    申请号:US16993067

    申请日:2020-08-13

    Abstract: Embodiments described herein provide for methods of forming optical device structures. The methods utilize rotation of a substrate, to have the optical device structures formed thereon, and tunability of etch rates of a patterned resist disposed over the substrate and one of a device layer or the substrate to form the optical device structures without multiple lithographic patterning steps and angled etch steps.

    AIRGAP STRUCTURES FOR IMPROVED EYEPIECE EFFICIENCY

    公开(公告)号:US20220299677A1

    公开(公告)日:2022-09-22

    申请号:US17654860

    申请日:2022-03-15

    Abstract: Embodiments of the present disclosure generally relate to encapsulated optical devices and methods of forming encapsulated optical devices. The optical devices include a plurality of optical device structures disposed on a substrate. An encapsulation coating is disposed over the plurality of optical device structures. The encapsulation coating includes a ratio of encapsulation material to solvent. A plurality of gaps are formed in the optical device. The plurality of gaps are formed when the solvent is evaporated from the encapsulation coating. The material composition of the encapsulation coating, the width and device angle of the plurality of optical device structures, as well as process parameters of the spin on coating process, the curing process, the baking process, the drying process, and the developing process will affect the formation of the plurality of gaps and the depth at which the plurality of gaps are formed.

    INTERFERENCE IN-SENSITIVE LITTROW SYSTEM FOR OPTICAL DEVICE STRUCTURE MEASUREMENT

    公开(公告)号:US20220214163A1

    公开(公告)日:2022-07-07

    申请号:US17645200

    申请日:2021-12-20

    Abstract: Embodiments described herein provide for devices and methods of measuring a pitch P of optical device structures and an orientation angle ϕ of the optical device structures. One embodiment of the system includes an optical arm coupled to an arm actuator. The optical arm includes a light source. The light source emits a light path operable to be diffracted to the stage. The optical arm further includes a first beam splitter and a second beam splitter positioned in the light path. The first beam splitter directs the light path through a first lens and the second beam splitter directs the light path through a first dove prism and a second lens. The optical arm further includes a first detector operable to detect the light path from the first lens and second detector operable to detect the light path from the second lens.

    Methods and apparatus of processing transparent substrates

    公开(公告)号:US11111176B1

    公开(公告)日:2021-09-07

    申请号:US16803956

    申请日:2020-02-27

    Abstract: Aspects of the present disclosure relate generally to methods and apparatus of processing transparent substrates, such as glass substrates. In one implementation, a film stack for optical devices includes a glass substrate including a first surface and a second surface. The film stack includes a device function layer formed on the first surface, a hard mask layer formed on the device function layer, and a substrate recognition layer formed on the hard mask layer. The hard mask layer includes one or more of chromium, ruthenium, or titanium nitride. The film stack includes a backside layer formed on the second surface. The backside layer formed on the second surface includes one or more of a conductive layer or an oxide layer.

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