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公开(公告)号：US11366269B2
公开(公告)日：2022-06-21
申请号：US16985645
申请日：2020-08-05
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian
Abstract: Structures including an edge coupler and methods of fabricating a structure including an edge coupler. The edge coupler includes a waveguide core having an end surface and a tapered section that terminates at the end surface. The tapered section of the waveguide core includes a slab layer and a ridge layer on the slab layer. The slab layer and the ridge layer each terminate at the end surface. The slab layer has a first width dimension with a first width at a given location along a longitudinal axis of the waveguide core, the ridge layer has a second width dimension with a second width at the given location along the longitudinal axis of the waveguide core, and the first width is greater than the second width.
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公开(公告)号：US20220187676A1
公开(公告)日：2022-06-16
申请号：US17119042
申请日：2020-12-11
Applicant: GLOBALFOUNDRIES U.S. INC.
Inventor： Michal Rakowski , Yusheng Bian , Won Suk Lee , Roderick A. Augur
IPC: G02F1/225
Abstract: Embodiments of the disclosure provide an optical ring modulator. The optical ring modulator includes waveguide with a first semiconductor material of a first doping type, and a second semiconductor material having a second doping type adjacent the first semiconductor material. A P-N junction is between the first semiconductor material and the second semiconductor material. A plurality of photonic crystal layers, each embedded within the first semiconductor material or the second semiconductor material, has an upper surface that is substantially coplanar with an upper surface of the waveguide structure.
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公开(公告)号：US11353654B2
公开(公告)日：2022-06-07
申请号：US17031032
申请日：2020-09-24
Applicant: GLOBALFOUNDRIES U.S. INC.
Inventor： Yusheng Bian
Abstract: The present disclosure relates to semiconductor structures and, more particularly, to spiral waveguide absorbers and methods of manufacture. The structure includes: a photonics component; and a waveguide absorber with a grating pattern coupled to a node of the photonics component.
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公开(公告)号：US20220146748A1
公开(公告)日：2022-05-12
申请号：US17094105
申请日：2020-11-10
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian
Abstract: Structures with waveguide cores in multiple levels and methods of fabricating a structure that includes waveguide cores in multiple levels. The structure includes a first waveguide core and a second waveguide core positioned in a different level than the first waveguide core. The first waveguide core includes a longitudinal axis and a plurality of segments having a spaced arrangement along the longitudinal axis. The second waveguide core is aligned to extend across the plurality of segments of the first waveguide core.
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245.发明申请公开(公告)号：US20220128762A1
公开(公告)日：2022-04-28
申请号：US17082291
申请日：2020-10-28
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Ryan W. Sporer , Karen A. Nummy
IPC: G02B6/122
Abstract: Structures and methods implement an enlarged waveguide. The structure may include a semiconductor-on-insulator (SOI) substrate including a semiconductor-on-insulator (SOI) layer over a buried insulator layer over a semiconductor substrate. An inter-level dielectric (ILD) layer is over the SOI substrate. A first waveguide has a lower surface extending at least partially into the buried insulator layer, which allows vertical enlargement of the waveguide, without increasing the thickness of the ILD layer or increasing the length of interconnects to other devices. The enlarged waveguide may include nitride, and can be implemented with other conventional silicon and nitride waveguides.
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Patent Agency Ranking
公开(公告)号：US20220091335A1
公开(公告)日：2022-03-24
申请号：US17026799
申请日：2020-09-21
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian
Abstract: Structures for an optical power splitter/combiner and methods of forming a structure for an optical power splitter/combiner. A first waveguide core is positioned adjacent to a second waveguide core. The first waveguide core includes a first end surface and a first tapered section that tapers toward the first end surface. The second waveguide core includes a second end surface and a second tapered section that tapers toward the second end surface. A third waveguide core is positioned in a different level than the first waveguide core and the second waveguide core. The third waveguide core includes a third end surface and a third tapered section that tapers toward the third end surface. The third tapered section includes a portion laterally positioned between the first tapered section of the first waveguide core and the second tapered section of the second waveguide core.
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公开(公告)号：US11275207B2
公开(公告)日：2022-03-15
申请号：US16989214
申请日：2020-08-10
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
Abstract: Structures for a waveguide bend and methods of fabricating a structure for a waveguide bend. A waveguide core has a first section, a second section, and a waveguide bend connecting the first section with the second section. The waveguide core includes a first side surface extending about an inner radius of the waveguide bend and a second side surface extending about an outer radius of the waveguide bend. A curved strip is arranged over the waveguide bend adjacent to the first side surface or the second side surface.
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公开(公告)号：US11243350B2
公开(公告)日：2022-02-08
申请号：US16817582
申请日：2020-03-12
Applicant: GLOBALFOUNDRIES U.S. INC.
Inventor： Yusheng Bian , Bo Peng , Michal Rakowski
Abstract: The present disclosure generally relates to semiconductor devices for use in optoelectronic/photonic applications and integrated circuit (IC) chips. More particularly, the present disclosure relates to semiconductor devices having a reflector and a photonic component and a method of forming the same. The present disclosure provides a semiconductor device having a substrate, a photonic component arranged above the substrate, a bottom reflector arranged above the substrate and positioned below the photonic component, in which the bottom reflector has a plurality of grating structures configured to reflect electromagnetic waves towards the photonic component, and a top reflector arranged above the photonic component, in which the top reflector has a plurality of grating structures configured to reflect electromagnetic waves towards the photonic component.
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公开(公告)号：US11226231B1
公开(公告)日：2022-01-18
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：US11163114B2
公开(公告)日：2021-11-02
申请号：US16549466
申请日：2019-08-23
Applicant: GLOBALFOUNDRIES U.S. INC.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob , Steven M. Shank
Abstract: The present disclosure relates to semiconductor structures and, more particularly, to waveguide structures with metamaterial structures and methods of manufacture. The structure includes: at least one waveguide structure; and metamaterial structures separated from the at least one waveguide structure by an insulator material, the metamaterial structures being structured to decouple the at least one waveguide structure to simultaneously reduce insertion loss and crosstalk of the at least one waveguide structure.
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