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公开(公告)号：US10718903B1
公开(公告)日：2020-07-21
申请号：US16441755
申请日：2019-06-14
Applicant: GLOBALFOUNDRIES Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
Abstract: Structures for a waveguide bend and methods of fabricating a structure for a waveguide bend. A first waveguide core has a first section, a second section, and a first waveguide bend connecting the first section with the second section. The first waveguide core has a first side surface extending about an outer radius of the first waveguide bend. A second waveguide core also has a first section, a second section, and a second waveguide bend connecting the first section with the second section. The second waveguide core has a second side surface extending about an outer radius of the second waveguide bend. The first waveguide bend is spaced from the second waveguide bend in a first non-contacting relationship with a gap between the first side surface and the second side surface. The gap has a perpendicular distance selected to permit optical signal transfer between the first and second waveguide bends.
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公开(公告)号：US20200088942A1
公开(公告)日：2020-03-19
申请号：US16134295
申请日：2018-09-18
Applicant: GLOBALFOUNDRIES Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob , Abu Thomas
Abstract: Structures with waveguides in multiple levels and methods of fabricating a structure that includes waveguides in multiple levels. A waveguide crossing has a first waveguide and a second waveguide arranged to intersect the first waveguide. A third waveguide is displaced vertically from the waveguide crossing, The third waveguide includes a portion having an overlapping arrangement with a portion of the first waveguide. The overlapping portions of the first and third waveguides are configured to transfer optical signals between the first waveguide and the third waveguide.
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13.发明授权公开(公告)号：US10585245B1
公开(公告)日：2020-03-10
申请号：US16199727
申请日：2018-11-26
Applicant: GLOBALFOUNDRIES Inc.
Inventor： Yusheng Bian , Abu Thomas , Ajey Poovannummoottil Jacob
Abstract: Structures that include an optical component, such as a grating coupler, and methods of fabricating a structure that includes an optical component, such as a grating coupler. First and second layers are arranged over the optical component with the first layer arranged between the second layer and the optical component. The first and second layers are each composed of a tunable material having a refractive index that is a function of a bias voltage applied to the first layer and the second layer.
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公开(公告)号：US20210063655A1
公开(公告)日：2021-03-04
申请号：US16559979
申请日：2019-09-04
Inventor： Sujith Chandran , Marcus Dahlem , Ajey Poovannummoottil Jacob , Yusheng Bian , Bruna Paredes , Jaime Viegas
Abstract: Structures for a wavelength-division multiplexing filter and methods of fabricating a structure for a wavelength-division multiplexing filter. The structure includes a first waveguide core, a second waveguide core laterally spaced from the first waveguide core, and a ring resonator arranged in a vertical direction over the first waveguide core and the second waveguide core. The ring resonator is also arranged in a lateral direction between the first waveguide core and the second waveguide core. The first and second waveguide cores are composed of a semiconductor material, such as single-crystal silicon, and the ring resonator is composed of a dielectric material, such as silicon nitride.
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公开(公告)号：US20210055478A1
公开(公告)日：2021-02-25
申请号：US16549197
申请日：2019-08-23
Applicant: GLOBALFOUNDRIES Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
Abstract: Structures for a waveguide coupler and methods of fabricating a structure for a waveguide coupler. A first waveguide core has a first width, a second waveguide core has a second width less than the first width, and a waveguide coupler includes first and second tapers that are positioned between the first waveguide core and the second waveguide core. The second taper is directly connected with the first taper, and the first and second tapers connect the first and second waveguide cores.
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Patent Agency Ranking
公开(公告)号：US10818807B2
公开(公告)日：2020-10-27
申请号：US16253191
申请日：2019-01-21
Applicant: GLOBALFOUNDRIES INC.
Inventor： Ajey Poovannummoottil Jacob , Theodore J. Letavic , Abu Thomas , Yusheng Bian
IPC: H01L31/02 , H01L31/18 , G02B1/11 , G02B5/08 , H01L31/0232 , H01L31/0216 , G02B1/113
Abstract: The present disclosure generally relates to semiconductor detectors for use in optoelectronic devices and integrated circuit (IC) chips, and methods for forming same. More particularly, the present disclosure relates to integration of semiconductor detectors with Bragg reflectors. The photodetector of the present disclosure includes a substrate, a Bragg reflector disposed on the substrate, and a semiconductor detector disposed on the Bragg reflector. The Bragg reflector includes alternating layers of a semiconductor material and a dielectric material.
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公开(公告)号：US10816727B1
公开(公告)日：2020-10-27
申请号：US16441678
申请日：2019-06-14
Applicant: GLOBALFOUNDRIES 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 and a second side surface, the first side surface extends about an inner radius of the waveguide bend, and the second side surface extends about an outer radius of the waveguide bend. The waveguide bend includes a central region and a side region that is arranged adjacent to the central region at the first side surface or the second side surface. The central region has a first thickness, and the side region has a second thickness that is less than the first thickness.
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公开(公告)号：US10690845B1
公开(公告)日：2020-06-23
申请号：US16298354
申请日：2019-03-11
Applicant: GLOBALFOUNDRIES INC.
Inventor： Ajey Poovannummoottil Jacob , Abu Thomas , Yusheng Bian
Abstract: The present disclosure relates to semiconductor structures and, more particularly, to three dimensional (3D) optical interconnect structures and methods of manufacture. The structure includes: a first structure having a grating coupler and a first optical waveguide structure; and a second structure having a second optical waveguide structure in alignment with the first optical waveguide structure and which has a modal effective index that matches to the first optical waveguide structure.
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公开(公告)号：US20200026000A1
公开(公告)日：2020-01-23
申请号：US16040896
申请日：2018-07-20
Applicant: GLOBALFOUNDRIES Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
Abstract: Structures including a waveguide arrangement and methods of fabricating a structure that includes a waveguide arrangement. A second waveguide spaced in a lateral direction from a first waveguide, a third waveguide spaced in a vertical direction from the first waveguide, and a fourth waveguide spaced in the vertical direction from the second waveguide. The third waveguide is arranged in the lateral direction to provide a first overlapping relationship with the first waveguide. The fourth waveguide is arranged in the lateral direction to provide a second overlapping relationship with the second waveguide.
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20.发明授权公开(公告)号：US10185092B1
公开(公告)日：2019-01-22
申请号：US16032705
申请日：2018-07-11
Applicant: GLOBALFOUNDRIES Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
Abstract: Structures for grating couplers and methods of fabricating a structure including grating couplers. A first grating coupler includes a first plurality of grating structures. An interconnect structure includes a first metallization level that is positioned over the first grating coupler. A second grating coupler includes a second plurality of grating structures that are arranged in the first metallization level to overlap with the first grating coupler. The second plurality of grating structures are composed of a metal.
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