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公开(公告)号：US20220011640A1
公开(公告)日：2022-01-13
申请号：US16922233
申请日：2020-07-07
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian
Abstract: Structures including a grating coupler and methods of forming a structure that includes a grating coupler. The grating coupler includes segments that are positioned with a spaced relationship on a slab layer. The segments contain an active material configured to have a first state with a first refractive index and a second state with a second refractive index in response to an applied stimulus. The first and second states may be produced by applying different sets of bias voltages to the segments as the applied stimulus.
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公开(公告)号：US20210404867A1
公开(公告)日：2021-12-30
申请号：US16911950
申请日：2020-06-25
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Akhilesh R. Jaiswal , Ajey Poovannummoottil Jacob , Yusheng Bian , David C. Pritchard
Abstract: An image sensor includes an array of optically switchable magnetic tunnel junctions (MTJs) arranged in columns and rows. The image sensor has first lines of transparent conductive material and second lines of conductive material. Each first line is in contact with the free layers of the MTJs in a corresponding row. Each second line is electrically connected to the fixed layers MTJs in a corresponding column. The first lines are concurrently exposable to radiation. The first and second lines are selectively biasable. In a global reset operation, biasing conditions are such that all MTJs are switched to an anti-parallel state. In a global sense operation, biasing conditions are such that, depending upon the intensity of radiation received at those portions of the first lines in contact with MTJs, the MTJs may switch to a parallel state. In selective read operations, biasing conditions are such that stored data values in the MTJs can be read.
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公开(公告)号：US11204463B1
公开(公告)日：2021-12-21
申请号：US16931771
申请日：2020-07-17
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Benjamin V. Fasano , Andreas D. Stricker , Hanyi Ding , Yusheng Bian , Bo Peng
Abstract: Embodiments of the disclosure provide an integrated circuit (IC) structure, including an optical medium for light signals; and an optical grating coupler coupled to the optical medium. The optical grating coupler is configured to reorient light from the optical medium. A cladding material is over the optical grating coupler. An absorber layer is over the cladding material, and vertically above the optical grating coupler.
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公开(公告)号：US11187852B1
公开(公告)日：2021-11-30
申请号：US17160710
申请日：2021-01-28
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Domingo Ferrer , Roderick A. Augur , Michal Rakowski
Abstract: Structures that include a Bragg grating and methods of fabricating a structure that includes a Bragg grating. The structure includes a waveguide core and a Bragg grating having a plurality of segments positioned with a spaced arrangement adjacent to the waveguide core. Each segment includes one or more exterior surfaces. The structure further includes a silicide layer located on the one or more exterior surfaces of each segment.
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公开(公告)号：US11181693B1
公开(公告)日：2021-11-23
申请号：US17076326
申请日：2020-10-21
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian
Abstract: Structures for a directional coupler and methods of fabricating a structure for a directional coupler. A first waveguide core has a first section, a second waveguide core has a second section laterally adjacent to the first section, a third waveguide core has a first taper, a second taper, and a third section longitudinally positioned between the first taper and the second taper, and a fourth waveguide core has a first taper, a second taper, and a fourth section longitudinally positioned between the first taper and the second taper. The fourth section is laterally adjacent to the third section, and the third section and the fourth section are positioned either over or under the first section and the second section.
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Patent Agency Ranking
公开(公告)号：US11177404B2
公开(公告)日：2021-11-16
申请号：US16740719
申请日：2020-01-13
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Ajey Poovannummoottil Jacob , Yusheng Bian , Steven Shank
IPC: H01L31/0352 , H01L31/0232 , H01L31/18 , H01L31/028 , H01L31/103
Abstract: A photodetector disclosed herein includes an N-doped waveguide structure defined in a semiconductor material, wherein the N-doped waveguide structure comprises a plurality of first fins. Each adjacent pair of the plurality of first fins is separated by a trench formed in the semiconductor material. The photodetector also includes a detector structure positioned on the N-doped waveguide structure, wherein a portion of the detector structure is positioned laterally between the plurality of first fins. The detector structure comprises a single crystal semiconductor material. The photodetector also includes a first diffusion region that extends from the bottom surface of the trench into the semiconductor material, wherein the first diffusion region comprises atoms of the single crystal semiconductor material of the detector structure.
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公开(公告)号：US11150407B2
公开(公告)日：2021-10-19
申请号：US16821299
申请日：2020-03-17
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob , Sujith Chandran
Abstract: Structures for an optical coupler and methods of fabricating a structure for an optical coupler. A first waveguide core has a first tapered section and a second waveguide core has a second tapered section positioned adjacent to the first tapered section. The first tapered section has a first shape determined by a first non-linear function, and the second tapered section has a second shape determined by a second non-linear function.
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公开(公告)号：US20210311253A1
公开(公告)日：2021-10-07
申请号：US16837149
申请日：2020-04-01
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Bo Peng
Abstract: Structures for an optical coupler and methods of fabricating a structure for an optical coupler. A coupling section has a plurality of segments arranged with a pitch, a first waveguide core has a section extending longitudinally over the first plurality of segments of the coupling section, and a second waveguide core has a section extending longitudinally over the coupling section. The section of the second waveguide core laterally spaced from the section of the first waveguide core by a given distance.
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179.发明授权公开(公告)号：US11088503B2
公开(公告)日：2021-08-10
申请号：US16525878
申请日：2019-07-30
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
Abstract: One illustrative laser disclosed herein includes a gain medium layer having a first width in a transverse direction that is orthogonal to a laser emitting direction of the laser, and an upper light-confining structure positioned above an upper surface of the gain medium layer, wherein the upper light-confining structure has a second width in the transverse direction that is equal to or less than the first width and comprises at least one material having an index of refraction that is at least 2.0. The laser also includes a lower light-confining structure positioned below a lower surface of the gain medium layer, wherein the lower light-confining structure has a third width in the transverse direction that is equal to or less than the first width and comprises at least one material having an index of refraction that is at least 2.0.
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公开(公告)号：US11079544B2
公开(公告)日：2021-08-03
申请号：US16531819
申请日：2019-08-05
Applicant: GLOBALFOUNDRIES U.S. INC.
Inventor： Yusheng Bian , Bo Peng , Michal Rakowski , Ajey Poovannummoottil Jacob
Abstract: The present disclosure relates to semiconductor structures and, more particularly, to Waveguide absorbers and methods of manufacture are provided. The waveguide structure includes a photonics component and a spirally configured waveguide absorber coupled to a node of the photonics component which reduces optical return loss.
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