-
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.
-
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.
-
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.
-
公开(公告)号：US20210305290A1
公开(公告)日：2021-09-30
申请号：US16829553
申请日：2020-03-25
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Michel Rakowski , Won Suk Lee , Asif Chowdhury , Ajey Poovannummoottil Jacob
IPC: H01L27/146 , H01L31/0232 , H01L31/101
Abstract: Structures for a photodetector and methods of fabricating a structure for a photodetector. The structure includes a light-absorbing region having a side edge, an anode adjacent to the side edge of the light-absorbing region, and a cathode adjacent to the side edge of the light-absorbing region.
-
公开(公告)号：US20210302651A1
公开(公告)日：2021-09-30
申请号：US16836047
申请日：2020-03-31
Inventor： Yusheng Bian , Sujith Chandran , Jaime Viegas , Humarira Zafar , Ajey Poovannummoottil Jacob
Abstract: Structures for a polarizer and methods of fabricating a structure for a polarizer. A waveguide crossing includes a first arm and a second arm. A waveguide loop couples the first arm of the waveguide crossing to the second arm of the waveguide crossing. The waveguide crossing and the waveguide loop provide a structure for the polarizer.
-
Patent Agency Ranking
公开(公告)号：US20210278742A1
公开(公告)日：2021-09-09
申请号：US16808613
申请日：2020-03-04
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
IPC: G02F1/313
Abstract: One illustrative device disclosed herein includes a lower waveguide structure and an upper body structure positioned above at least a portion of the lower waveguide structure. In this example, the device also includes a grating structure positioned in the upper body structure, wherein the grating structure comprises a plurality of grating elements that comprise a tunable material whose index of refraction may be changed by application of energy to the tunable material.
-
公开(公告)号：US20210278611A1
公开(公告)日：2021-09-09
申请号：US16807811
申请日：2020-03-03
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Asli Sahin , Colleen Meagher , Thomas Houghton , Bo Peng , Karen Nummy , Javier Ayala , Yusheng Bian
IPC: G02B6/42 , H01L21/84 , H01L21/311
Abstract: One illustrative device disclosed herein includes a V-groove in a base semiconductor layer of a semiconductor-on-insulator (SOI) substrate, wherein the V-groove is adapted to have a fiber optics cable positioned therein, and an optical component positioned above the V-groove. The device also includes a first layer of silicon dioxide positioned above the optical component, a second layer of silicon dioxide positioned on and in contact with the first layer of silicon dioxide and a third layer of silicon dioxide positioned on and in contact with the second layer of silicon dioxide.
-
公开(公告)号：US20210239903A1
公开(公告)日：2021-08-05
申请号：US16781324
申请日：2020-02-04
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
Abstract: Structures for a polarizer and methods of fabricating a structure for a polarizer. A first waveguide core has a first tapered section, a second tapered section, and a section positioned along a longitudinal axis between the first tapered section and the second tapered section. The first tapered section and the second tapered section each narrow in a direction along the longitudinal axis toward the section. A second waveguide core has a first terminating end, a second terminating end, and a section that is arranged between the first and second terminating ends. The section of the second waveguide core is positioned either over or below the section of the first waveguide core.
-
公开(公告)号：US20210157051A1
公开(公告)日：2021-05-27
申请号：US16690835
申请日：2019-11-21
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
Abstract: Structures for a waveguide and methods of fabricating a structure for a waveguide. A first layer and a second layer are positioned in a layer stack on a surface of a waveguide core. The first layer is positioned in the layer stack between the second layer and the surface of the waveguide core. The waveguide core is composed of a first material having a first refractive index, the first layer is composed of a second material having a second refractive index that is less than the first refractive index of the first material, and the second layer is composed of a third material having a third refractive index that is less than the second refractive index of the second material.
-
公开(公告)号：US11002916B1
公开(公告)日：2021-05-11
申请号：US16682502
申请日：2019-11-13
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob , Michal Rakowski , Bo Peng
IPC: G02B6/34
Abstract: Structures including a grating coupler and methods of fabricating such structures. The structure includes a waveguide core, a bend, and a grating coupler coupled to the waveguide core by the bend. The grating coupler includes grating structures that are positioned with a spaced relationship in a layer stack above the bend.
-
-
-
-
-
-
-
-
-
Search Results
332
records
(took 0.022 seconds)
