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公开(公告)号：US20250102727A1
公开(公告)日：2025-03-27
申请号：US18894905
申请日：2024-09-24
Applicant: Applied Materials, Inc.
Inventor： Evan WANG , David Alexander SELL
Abstract: The present disclosure provides a waveguide combiner. The waveguide combiner includes a substrate having a top surface. The waveguide combiner includes a plurality of structures disposed over the top surface. The waveguide combiner includes a cover glass disposed over the top surface. The cover glass including an absorption region and a transparent region. The absorption region includes an absorption material.
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公开(公告)号：US20240099617A1
公开(公告)日：2024-03-28
申请号：US18477444
申请日：2023-09-28
Applicant: Applied Materials, Inc.
Inventor： David Alexander SELL , Paul GALLAGHER , Christopher G. TALBOT , Christopher John WRIGHT , Harry Michael CRONIN
IPC: A61B5/1455 , A61B5/00 , A61B5/024 , G01N21/47 , G01N33/02
CPC classification number: A61B5/14552 , A61B5/0073 , A61B5/02427 , A61B5/4809 , G01N21/4738 , G01N21/4795 , G01N33/025
Abstract: Method and apparatuses for diffuse optical tomography (DOT) are disclosed herein. A DOT device includes a substrate, one or more radiation sources, a plurality of detectors, and structures disposed over the second surface of the plurality of detectors. The one or more radiation sources are disposed over or under a surface of the substrate. Each detector of the plurality of detectors has a first surface and a second surface. The first surface is opposite the second surface. The first surface of the plurality of detectors disposed over or under the surface of the substrate. The method of DOT method of includes emitting and scattering radiation from one or more sources of a DOT device; detecting scattered radiation with a plurality of detectors of the DOT device; and translating the scattered radiation that is detected into data.
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公开(公告)号：US20230333466A1
公开(公告)日：2023-10-19
申请号：US18337289
申请日：2023-06-19
Applicant: Applied Materials, Inc.
Inventor： David Alexander SELL , Samarth BHARGAVA
CPC classification number: G03F7/0005 , G02B25/001
Abstract: Embodiments of the present disclosure generally relate to methods of forming a substrate having a target thickness distribution at one or more eyepiece areas across a substrate. The substrate includes eyepiece areas corresponding to areas where optical device eyepieces are to be formed on the substrate. Each eyepiece area includes a target thickness distribution. A base substrate thickness distribution of a base substrate is measured such that a target thickness change can be determined. The methods described herein are utilized along with the target thickness change to form a substrate with the target thickness distribution.
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公开(公告)号：US20240337789A1
公开(公告)日：2024-10-10
申请号：US18750069
申请日：2024-06-21
Applicant: Applied Materials, Inc.
Inventor： Kevin MESSER , David Alexander SELL , Samarth BHARGAVA
CPC classification number: G02B6/1223 , G02B6/12007 , G02B2006/12107 , G02B2207/101
Abstract: Embodiments of the present disclosure generally relate to augmented reality waveguide combiners. The waveguides includes a waveguide substrate, having a substrate refractive index (RI) nsub, a slab waveguide layer disposed over the waveguide substrate, the slab waveguide layer having a slab RI nswg and a slab depth dswg, the slab depth dswg from a lower surface to an upper surface of the slab waveguide layer, at least one grating defined by a plurality of grating structures, the grating structures are disposed in, on, or over the slab waveguide layer, and a superstrate between and over the grating structures, the superstrate having a superstrate RI nsuperstrate and an interface with the slab waveguide layer. The slab RI nswg is greater than the substrate RI nsub and the slab RI nswg is greater than the superstrate RI nsuperstrate.
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公开(公告)号：US20240126012A1
公开(公告)日：2024-04-18
申请号：US18381604
申请日：2023-10-18
Applicant: Applied Materials, Inc.
Inventor： Yingdong LUO , Zhengping YAO , Daihua ZHANG , David Alexander SELL , Jingyi YANG , Xiaopei DENG , Kevin MESSER , Samarth BHARGAVA , Rami HOURANI , Ludovic GODET
CPC classification number: G02B6/1228 , G02B6/12004 , G02B6/124 , G02B6/13 , G02B27/0081
Abstract: Embodiments of the present disclosure generally relate to methods for forming a waveguide. Methods may include measuring a waveguide substrate, the waveguide having a substrate thickness distribution; and depositing an index-matched layer onto a surface of the waveguide, the index-matched layer having a first surface disposed on the waveguide substrate and a second surface opposing the first surface, wherein the index-matched layer is disposed only over a portion of the waveguide substrate, and a device slope of a second surface of the index-matched layer is substantially the same as the waveguide slope of the first surface of the waveguide.
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Patent Agency Ranking
公开(公告)号：US20230118081A1
公开(公告)日：2023-04-20
申请号：US17954085
申请日：2022-09-27
Applicant: Applied Materials, Inc.
Inventor： Jianji YANG , Samarth BHARGAVA , David Alexander SELL , Kevin MESSER
Abstract: Embodiments of the present disclosure describe waveguides having device structures with multiple portions and methods of forming the waveguide having multiportion device structures. The plurality of device structures are formed having two or more portions. The materials of the plurality of portions are chosen such that impedance matching is enabled between the portions to reduce reflection of light from the optical device.
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公开(公告)号：US20250067918A1
公开(公告)日：2025-02-27
申请号：US18812807
申请日：2024-08-22
Applicant: Applied Materials, Inc.
Inventor： Evan WANG , Yingnan LIU , Simon LORENZO , David Alexander SELL
Abstract: A waveguide combiner is provided. The waveguide combiner includes a waveguide combiner substrate. The waveguide combiner provides a plurality of staircase structures disposed on the substrate. Each staircase structure comprises a plurality of staircase steps. Each staircase step has a staircase width that is the same. The plurality of staircase steps have a trim width from an initial staircase step to a final staircase step. The plurality of staircase steps includes a top step having a top width.
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8.发明申请公开(公告)号：US20250012961A1
公开(公告)日：2025-01-09
申请号：US18747844
申请日：2024-06-19
Applicant: Applied Materials, Inc.
Inventor： Evan WANG , Kunal SHASTRI , David Alexander SELL , Kevin MESSER , Samarth BHARGAVA
Abstract: A waveguide is disclosed. The waveguide includes one or more gratings disposed over a substrate. The gratings include grating structures having a grating pitch. The waveguide includes a waveguide region disposed over the substrate between each grating and an edge of the substrate. The waveguide region includes auxiliary structures with an auxiliary pitch less than the grating pitch.
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公开(公告)号：US20240295693A1
公开(公告)日：2024-09-05
申请号：US18629636
申请日：2024-04-08
Applicant: Applied Materials, Inc.
Inventor： Yingdong LUO , Zhengping YAO , Daihua ZHANG , David Alexander SELL , Jingyi YANG , Xiaopei DENG , Kevin MESSER , Samarth BHARGAVA , Rami HOURANI , Ludovic GODET
CPC classification number: G02B6/1228 , G02B6/12004 , G02B6/124 , G02B6/13 , G02B27/0081
Abstract: Embodiments of the present disclosure generally relate to methods for forming a waveguide. Methods may include measuring a waveguide substrate, the waveguide having a substrate thickness distribution; and depositing an index-matched layer onto a surface of the waveguide, the index-matched layer having a first surface disposed on the waveguide substrate and a second surface opposing the first surface, wherein the index-matched layer is disposed only over a portion of the waveguide substrate, and a device slope of a second surface of the index-matched layer is substantially the same as the waveguide slope of the first surface of the waveguide.
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公开(公告)号：US20240142699A1
公开(公告)日：2024-05-02
申请号：US18496574
申请日：2023-10-27
Applicant: Applied Materials, Inc.
Inventor： Kevin MESSER , David Alexander SELL , Samarth BHARGAVA
CPC classification number: G02B6/1223 , G02B6/12007 , G02B2006/12107 , G02B2207/101
Abstract: Embodiments of the present disclosure generally relate to augmented reality waveguide combiners. The waveguides includes a waveguide substrate, having a substrate refractive index (RI) nsub, a slab waveguide layer disposed over the waveguide substrate, the slab waveguide layer having a slab RI nswg and a slab depth dswg, the slab depth dswg from a lower surface to an upper surface of the slab waveguide layer, at least one grating defined by a plurality of grating structures, the grating structures are disposed in, on, or over the slab waveguide layer, and a superstrate between and over the grating structures, the superstrate having a superstrate RI nsuperstrate and an interface with the slab waveguide layer. The slab RI nswg is greater than the substrate RI nsub and the slab RI nswg is greater than the superstrate RI nsuperstrate.
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