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公开(公告)号:US20240159962A1
公开(公告)日:2024-05-16
申请号:US17985223
申请日:2022-11-11
Applicant: GlobalFoundries U.S. Inc.
Inventor: Mark Levy , Siva P. Adusumilli , Yusheng Bian
CPC classification number: G02B6/122 , G02B6/13 , G02B2006/12078
Abstract: Structures for a waveguide and methods of forming a waveguide. The structure comprises a substrate, a waveguide core comprising a compound semiconductor material, and a layer disposed on the substrate. The layer comprises the compound semiconductor material, and the layer includes a cavity positioned beneath the waveguide core.
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公开(公告)号:US20240154384A1
公开(公告)日:2024-05-09
申请号:US17982606
申请日:2022-11-08
Applicant: GlobalFoundries U.S. Inc.
Inventor: Zhuojie Wu , Koushik Ramachandran , Yusheng Bian
IPC: H01S5/0236 , H01S5/02251 , H01S5/024
CPC classification number: H01S5/0236 , H01S5/02251 , H01S5/024
Abstract: Structures for a cavity-mounted chip and methods of fabricating a structure for a cavity-mounted chip. The structure comprises a laser chip including a body attached to a substrate. The laser chip has an output, and the body of the laser chip has a bottom surface spaced from the substrate by a gap. The structure further comprises a first adhesive in the first gap and a second adhesive positioned in the first gap between the first adhesive and the output of the laser chip. The first adhesive has a first thermal conductivity, the second adhesive has a second thermal conductivity, and the first thermal conductivity of the first adhesive is greater than the second thermal conductivity of the second adhesive.
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公开(公告)号:US20240142725A1
公开(公告)日:2024-05-02
申请号:US18050147
申请日:2022-10-27
Applicant: GlobalFoundries U.S. Inc.
Inventor: Yusheng Bian
IPC: G02B6/42 , H01L31/0232 , H01L31/105
CPC classification number: G02B6/4203 , H01L31/02327 , H01L31/105
Abstract: Disclosed are embodiments of a photonic structure with at least one tapered coupler positioned laterally adjacent and along the length of a sidewall of a layer, such as a light absorption layer (LAL), of a photodetector to facilitate mode matching. Some embodiments include a vertically oriented photodetector, which is on an insulator layer and has an LAL stacked between bottom and top semiconductor layers, and a coupler, which is on the insulator layer positioned laterally adjacent to the photodetector and has stacked cores with one of the cores being at the same level as the LAL. Other embodiments include a horizontally oriented photodetector, which is on an insulator layer and has an LAL on a recessed section of a bottom semiconductor layer between side sections, and coupler(s), which is/are above side section(s) of the bottom semiconductor layer and, thus, positioned laterally adjacent to one or both sides of the LAL.
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公开(公告)号:US20240111088A1
公开(公告)日:2024-04-04
申请号:US17936939
申请日:2022-09-30
Applicant: GlobalFoundries U.S. Inc.
Inventor: Yusheng Bian , Ryan William Sporer
CPC classification number: G02B6/12004 , G02B6/13 , G02B2006/12061
Abstract: A structure or PIC structure includes a hybrid plasmonic (HP) waveguide. The HP waveguide includes a waveguide core, and a metal silicide layer contacting the waveguide core. The metal silicide layer replaces noble metals typically provided in hybrid plasmonic waveguides, providing improved optical signal containment characteristics. The metal silicide layer is also compatible with CMOS fabrication techniques, and capable of additional scaling with other CMOS structures. The HP waveguide also has a reduce form factor compared to conventional HP waveguides, providing room for more waveguides closer together.
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公开(公告)号:US11934021B2
公开(公告)日:2024-03-19
申请号:US17649191
申请日:2022-01-27
Applicant: GlobalFoundries U.S. Inc.
Inventor: Hemant Martand Dixit , William J. Taylor, Jr. , Yusheng Bian , Theodore Letavic , Oscar D. Restrepo
CPC classification number: G02B6/4269 , G02B6/122 , G02B6/125 , G02B2006/12135 , G02B2006/12142
Abstract: The disclosed subject matter relates to semiconductor devices for use in optoelectronic/photonic applications and integrated circuit (IC) chips. More particularly, the present disclosure relates to photonic devices having thermally conductive layers for the removal of heat from optoelectronic components in the photonic devices.
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公开(公告)号:US11927801B2
公开(公告)日:2024-03-12
申请号:US17880006
申请日:2022-08-03
Applicant: GlobalFoundries U.S. Inc.
Inventor: Yusheng Bian , Abdelsalam Aboketaf
CPC classification number: G02B6/126 , G02B6/12002 , G02B6/132 , G02B2006/1215
Abstract: Structures for a waveguide core and methods of forming such structures. The structure comprises a stacked waveguide core including a first waveguide core and a second waveguide core stacked with the first waveguide core, and a layer adjacent to the stacked waveguide core. The layer comprises a material having a refractive index that is variable in response to a stimulus.
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公开(公告)号:US20240061176A1
公开(公告)日:2024-02-22
申请号:US17892584
申请日:2022-08-22
Applicant: GlobalFoundries U.S. Inc.
Inventor: Yusheng Bian
IPC: G02B6/122
CPC classification number: G02B6/1228
Abstract: Structures for an optical coupler and methods of forming an optical coupler. The structure comprises a first waveguide core including a first tapered section, a second waveguide core including a second tapered section overlapped with the first tapered section, and an active layer including a third tapered section overlapped with the second tapered section. The first waveguide core comprises a first passive material, the second waveguide core comprises a second passive material, and the active layer comprises an active material.
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公开(公告)号:US20240045142A1
公开(公告)日:2024-02-08
申请号:US17880006
申请日:2022-08-03
Applicant: GlobalFoundries U.S. Inc.
Inventor: Yusheng Bian , Abdelsalam Aboketaf
CPC classification number: G02B6/126 , G02B6/132 , G02B6/12002 , G02B2006/1215
Abstract: Structures for a waveguide core and methods of forming such structures. The structure comprises a stacked waveguide core including a first waveguide core and a second waveguide core stacked with the first waveguide core, and a layer adjacent to the stacked waveguide core. The layer comprises a material having a refractive index that is variable in response to a stimulus.
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公开(公告)号:US11892680B2
公开(公告)日:2024-02-06
申请号:US17853186
申请日:2022-06-29
Applicant: GlobalFoundries U.S. Inc.
Inventor: Yusheng Bian
CPC classification number: G02B6/305 , G02B6/1228 , G02B6/13 , G02B2006/12061 , G02B2006/12121
Abstract: Structures for an edge coupler and methods of fabricating a structure for an edge coupler. The structure comprises an edge coupler including a first waveguide core and a second waveguide core. The first waveguide core is positioned in a vertical direction between the second waveguide core and a substrate. The first waveguide core has a first longitudinal axis, the second waveguide core has a second longitudinal axis, and the second longitudinal axis of the second waveguide core is slanted at an angle relative to the first longitudinal axis of the first waveguide core.
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公开(公告)号:US20240027685A1
公开(公告)日:2024-01-25
申请号:US17869858
申请日:2022-07-21
Applicant: GlobalFoundries U.S. Inc.
Inventor: Yusheng Bian
CPC classification number: G02B6/125 , G02B6/136 , G02B2006/12119
Abstract: Structures for a waveguide crossing and methods of fabricating a structure for a waveguide crossing. The structure comprises a first waveguide core and a second waveguide core each including a first section, a second section, and a first waveguide bend connecting the first section to the second section. The second section terminates the first waveguide core. The second section terminates the second waveguide core. The second waveguide bend has a side surface that is spaced from a side surface of the first waveguide bend by a gap. A third waveguide core is terminated by a section having an overlapping arrangement with the second section of the first waveguide core. A fourth waveguide core is terminated by a section having an overlapping arrangement with the second section of the second waveguide core.
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