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1.发明申请公开(公告)号：US20240402486A1
公开(公告)日：2024-12-05
申请号：US18325233
申请日：2023-05-30
Applicant: GlobalFoundries U.S. Inc.
Inventor： Abdelsalam Aboketaf , Frederick G. Anderson , Yusheng Bian , Petar I Todorov , Bradley A. Orner
IPC: G02B27/00 , G02B6/12 , G06F30/31 , G06F30/323
Abstract: Systems and methods for designing photonic integrated circuits (PICs) include a simulation program with virtual optical probing functions and, optionally, bidirectional optical signal propagation simulation. For probing, a processor receives an output expression specifying a virtual optical probing function (e.g., for power in dBm, etc.) and a net within a PIC design. If different simulation types are enabled, the expression specifies simulation type. If bidirectionality is enabled, the expression specifies the forward or reverse direction. In response, the processor accesses the PIC design and results of simulation(s) thereof and calculates and outputs an optical signal parameter value for the specified net. For bidirectionality, component descriptions of photonic device cells define, at each input/output terminal, pins associated with each of multiple optical signal components in both directions and, when such cells are incorporated into a PIC design, analytical functions employ the pins to model the optical signal components in both directions.
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公开(公告)号：US20240395965A1
公开(公告)日：2024-11-28
申请号：US18200683
申请日：2023-05-23
Applicant: GlobalFoundries U.S. Inc.
Inventor： Yusheng Bian
Abstract: Structures including a photodetector and methods of forming a structure including a photodetector. The structure comprises a photodetector including a pad and a semiconductor layer positioned on the pad. The semiconductor layer has a sidewall, the pad comprises a semiconductor material, and the pad includes a top surface and a side edge. The structure further comprises a waveguide core including a tapered section adjacent to the side edge of the pad, and a confining feature in the pad adjacent to the sidewall of the semiconductor layer. The confining feature extends below the top surface of the pad, and the confining feature comprises a dielectric material.
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公开(公告)号：US20240393625A1
公开(公告)日：2024-11-28
申请号：US18201583
申请日：2023-05-24
Applicant: GlobalFoundries U.S. Inc.
Inventor： Sujith Chandran , Yusheng Bian , Won Suk Lee
IPC: G02F1/01
Abstract: Structures for a thermo-optic phase shifter and methods of forming a thermo-optic phase shifter. The structure comprises a semiconductor substrate, and a heater including a first resistive heating element, a second resistive heating element, and a slab layer connecting the first resistive heating element to the second resistive heating element. The first resistive heating element and the second resistive heating element have a first thickness, and the slab layer has a second thickness that is less than the first thickness. The structure further comprises a waveguide core including a portion that is laterally positioned between the first resistive heating element and the second resistive heating element. The slab layer of the heater is disposed between the portion of the waveguide core and the semiconductor substrate.
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公开(公告)号：US20240272359A1
公开(公告)日：2024-08-15
申请号：US18109294
申请日：2023-02-14
Applicant: GlobalFoundries U.S. Inc.
Inventor： Yusheng Bian , Roderick Alan Augur
CPC classification number: G02B6/125 , G02B6/1228 , G02B6/13 , G02B2006/12061 , G02B2006/12147 , G02B2006/1215
Abstract: Structures for an optical power splitter and methods of forming a structure for an optical power splitter. The structure comprises a spiral waveguide core having an outer perimeter. The structure further comprises a plurality of waveguide cores. Each waveguide core has a section disposed adjacent to the outer perimeter of the spiral waveguide core.
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公开(公告)号：US20240184042A1
公开(公告)日：2024-06-06
申请号：US18073144
申请日：2022-12-01
Applicant: GlobalFoundries U.S. Inc.
Inventor： Yusheng Bian
CPC classification number: G02B6/1228 , G02B6/124 , G02B6/13 , G02B2006/12061
Abstract: Structures for an optical component, such as an optical reflector or an Echelle grating, and methods of forming such structures. The structure comprises a first waveguide core positioned in a vertical direction over a semiconductor substrate. The first waveguide core includes a tapered section and a plurality of segments separated by a plurality of gaps. A second waveguide core, which is positioned in the vertical direction relative to the first waveguide core, includes a portion positioned adjacent to the first waveguide core.
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Patent Agency Ranking
公开(公告)号：US11977258B1
公开(公告)日：2024-05-07
申请号：US18148029
申请日：2022-12-29
Applicant: GlobalFoundries U.S. Inc.
Inventor： Laura J. Silverstein , Steven M. Shank , Judson R. Holt , Yusheng Bian
CPC classification number: G02B6/122 , G02B6/13 , G02B6/02042 , G02B6/02333 , G02B2006/121
Abstract: Disclosed are a structure with a substrate-embedded waveguide and a method of forming the structure. The waveguide includes cladding material lining a trench in a substrate, a core in the trench on the cladding material, and at least one cavity within the core. Each cavity extends from one end of the core toward the opposite end and contains a low refractive index material or is under vacuum so the waveguide is an arrow waveguide. An insulator layer is on the substrate and extends laterally over the waveguide and a semiconductor layer is on the insulator layer. Additionally, depending upon the embodiment, an additional waveguide can be aligned above the substrate-embedded waveguide either on the isolation region or on a waveguide extender that extends at least partially through the isolation region and the insulator layer to the waveguide.
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公开(公告)号：US20240126013A1
公开(公告)日：2024-04-18
申请号：US18046189
申请日：2022-10-13
Applicant: GlobalFoundries U.S. Inc.
Inventor： Yusheng Bian , Won Suk Lee , Andreas D. Stricker
CPC classification number: G02B6/126 , G02B6/1228
Abstract: A structure includes a polarization device such as a polarization splitter, a polarization combiner or a polarization splitter rotator including a waveguide having a light absorber at an end section with an at least hook shape, e.g., it can be hooked or spiral shape. The structure also includes another waveguide adjacent the stated waveguide. The hook or spiral shape acts as a light absorber that reduces undesired optical noise such as excessive light insertion loss and/or light scattering. The hook or spiral shape may also be used on supplemental waveguides used to further filter and/or refine an optical signal in one of the waveguides of the polarization device, e.g., downstream of an output section of the polarization splitter and/or rotator.
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公开(公告)号：US11947168B2
公开(公告)日：2024-04-02
申请号：US17658092
申请日：2022-04-05
Applicant: GlobalFoundries U.S. Inc.
Inventor： Yusheng Bian
CPC classification number: G02B6/305 , G02B6/12004 , G02B6/1228 , G02B2006/12147 , G02B2006/12166
Abstract: A stacked edge coupler for a photonic chip is provided. The stacked edge coupler includes an insulating layer, a waveguide core, a first assisting waveguide, and a back-end-of-line stack. The first assisting waveguide is on the insulating layer. The waveguide core is over the first assisting waveguide and includes a tapered section. The back-end-of-line stack is over the waveguide core. The back-end-of-line stack includes a side edge, a dielectric layer, and a second assisting waveguide. The second assisting waveguide is on the dielectric layer and arranged adjacent to the side edge. The second assisting waveguide has an overlapping arrangement with the tapered section of the waveguide core.
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公开(公告)号：US20240045156A1
公开(公告)日：2024-02-08
申请号：US17816790
申请日：2022-08-02
Applicant: GlobalFoundries U.S. Inc.
Inventor： Yusheng Bian , Vibhor Jain , Steven M. Shank
IPC: G02B6/42
CPC classification number: G02B6/4212 , G02B6/4215 , G02B6/4295 , G02B6/4274
Abstract: A structure includes a dielectric waveguide, and at least one grating coupler adjacent the dielectric waveguide. Each grating coupler includes a set of parallel optofluidic grating channels oriented orthogonally to the dielectric waveguide. The structure may also include a radiation source operatively coupled to the dielectric waveguide, and an optical receiver such as a photosensor adjacent the grating coupler(s). The structure may be used as part of an optofluidic sensor system for, for example, biochemical applications.
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公开(公告)号：US11880066B2
公开(公告)日：2024-01-23
申请号：US17847399
申请日：2022-06-23
Applicant: GlobalFoundries U.S. Inc.
Inventor： Kevin Dezfulian , Yusheng Bian
CPC classification number: G02B6/1228 , G02B6/1223 , G02B2006/12097
Abstract: Structures including a waveguide core and methods of fabricating a structure including a waveguide core. The structure comprises a photonics chip including a first chip region, a second chip region, a first waveguide core in the first chip region, and a second waveguide core in the second chip region. The first chip region adjoins the second chip region along a boundary. The first waveguide core includes a first tapered section, and the second waveguide core includes a second tapered section positioned across the boundary from the first tapered section. The first tapered section has a first width dimension that increases with increasing distance from the boundary, and the second tapered section has a second width dimension that increases with increasing distance from the boundary.
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