Patents by Inventor Shaoqiang Zhang
Shaoqiang Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250056894Abstract: A method includes: receiving a composite substrate including a first region and a second region, the composite substrate including a semiconductor substrate and an insulator layer over the semiconductor substrate; forming a trench through the insulator layer, the trench exposing a surface of the semiconductor substrate in the first region; growing an initial epitaxial layer in the trench and over an upper surface of the second region; thickening the initial epitaxial layer to form an epitaxial layer; forming a transistor layer over the epitaxial layer, the transistor layer including a first transistor and a second transistor in the first region and the second region, respectively; and forming an interconnect layer over the transistor layer and electrically coupling the first transistor to the second transistor.Type: ApplicationFiled: October 30, 2024Publication date: February 13, 2025Inventors: YUNG-CHIH TSAI, CHIH-PING CHAO, CHUN-HUNG CHEN, SHAOQIANG ZHANG, KUAN-LIANG LIU, CHUN-PEI WU, ALEXANDER KALNITSKY
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Patent number: 12159873Abstract: A method includes: receiving a composite substrate including a first region and a second region, the composite substrate comprising a semiconductor substrate and an insulator layer over the semiconductor substrate; bonding a silicon layer to the composite substrate; depositing a capping layer over the silicon layer; forming a trench through the capping layer, the silicon layer and the insulator layer, the trench exposing a surface of the semiconductor substrate in the first region; growing an initial epitaxial layer in the trench; removing the capping layer to form an epitaxial layer from the silicon layer and the initial epitaxial layer; forming a transistor layer over the epitaxial layer, the transistor layer including a first transistor and a second transistor in the first region and the second region, respectively; and forming an interconnect layer over the transistor layer and electrically coupling the first transistor to the second transistor.Type: GrantFiled: June 21, 2021Date of Patent: December 3, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Yung-Chih Tsai, Chih-Ping Chao, Chun-Hung Chen, Shaoqiang Zhang, Kuan-Liang Liu, Chun-Pei Wu, Alexander Kalnitsky
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Publication number: 20220406819Abstract: A method includes: receiving a composite substrate including a first region and a second region, the composite substrate comprising a semiconductor substrate and an insulator layer over the semiconductor substrate; bonding a silicon layer to the composite substrate; depositing a capping layer over the silicon layer; forming a trench through the capping layer, the silicon layer and the insulator layer, the trench exposing a surface of the semiconductor substrate in the first region; growing an initial epitaxial layer in the trench; removing the capping layer to form an epitaxial layer from the silicon layer and the initial epitaxial layer; forming a transistor layer over the epitaxial layer, the transistor layer including a first transistor and a second transistor in the first region and the second region, respectively; and forming an interconnect layer over the transistor layer and electrically coupling the first transistor to the second transistor.Type: ApplicationFiled: June 21, 2021Publication date: December 22, 2022Inventors: YUNG-CHIH TSAI, CHIH-PING CHAO, CHUN-HUNG CHEN, SHAOQIANG ZHANG, KUAN-LIANG LIU, CHUN-PEI WU, ALEXANDER KALNITSKY
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Publication number: 20220326160Abstract: The present disclosure provides a method for trapping molecules with optical fiber tweezers based on phase transition and crystallization and a method for detecting a Raman spectrum of a persistent organic pollutant, belonging to the technical field of surface-enhanced Raman spectroscopy. Based on quite different solubilities of a substance to be detected in different solvents, dissolved phase small molecules to be detected are transformed into large size crystalline phase molecules through the physical process of phase transition and crystallization. Further, effective trapping of molecules to be detected that are not prone to bonding to noble metal nanoparticles in the vicinity of the noble metal nanoparticles can be achieved by combining the physical process of phase transition and crystallization with the physical trapping technique using optical fiber tweezers, so that the sensitivity of surface-enhanced Raman scattering (SERS) spectrum detection is significantly improved.Type: ApplicationFiled: July 28, 2021Publication date: October 13, 2022Applicant: Dongguan University of TechnologyInventors: Fei Zhou, Ye Liu, Hongcheng Wang, Yadong Wei, Geng Zhang, Shaoqiang Zhang
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Patent number: 11448599Abstract: The present disclosure provides a method for trapping molecules with optical fiber tweezers based on phase transition and crystallization and a method for detecting a Raman spectrum of a persistent organic pollutant, belonging to the technical field of surface-enhanced Raman spectroscopy. Based on quite different solubilities of a substance to be detected in different solvents, dissolved phase small molecules to be detected are transformed into large size crystalline phase molecules through the physical process of phase transition and crystallization. Further, effective trapping of molecules to be detected that are not prone to bonding to noble metal nanoparticles in the vicinity of the noble metal nanoparticles can be achieved by combining the physical process of phase transition and crystallization with the physical trapping technique using optical fiber tweezers, so that the sensitivity of surface-enhanced Raman scattering (SERS) spectrum detection is significantly improved.Type: GrantFiled: July 28, 2021Date of Patent: September 20, 2022Assignee: Dongguan University Of TechnologyInventors: Fei Zhou, Ye Liu, Hongcheng Wang, Yadong Wei, Geng Zhang, Shaoqiang Zhang
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Patent number: 11004972Abstract: A device may include a semiconductor-on-insulator (SOI) structure that may include a substrate, an insulator layer over the substrate, and a semiconductor layer over the insulator layer. The semiconductor layer may include a first conductivity region and a second conductivity region at least partially arranged within the semiconductor layer. The device may further include a gate structure arranged over the semiconductor layer and between the first conductivity region and the second conductivity region; a first conductor element arranged through the semiconductor layer and the insulator layer of the SOI structure to electrically contact the substrate; a second conductor element arranged to electrically contact the gate structure; and a conducting member connecting the first conductor element and the second conductor element to electrically couple the first conductor element and the second conductor element.Type: GrantFiled: June 12, 2019Date of Patent: May 11, 2021Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Bo Yu, Shaoqiang Zhang
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Publication number: 20200395385Abstract: A device may include a semiconductor-on-insulator (SOI) structure that may include a substrate, an insulator layer over the substrate, and a semiconductor layer over the insulator layer. The semiconductor layer may include a first conductivity region and a second conductivity region at least partially arranged within the semiconductor layer. The device may further include a gate structure arranged over the semiconductor layer and between the first conductivity region and the second conductivity region; a first conductor element arranged through the semiconductor layer and the insulator layer of the SOI structure to electrically contact the substrate; a second conductor element arranged to electrically contact the gate structure; and a conducting member connecting the first conductor element and the second conductor element to electrically couple the first conductor element and the second conductor element.Type: ApplicationFiled: June 12, 2019Publication date: December 17, 2020Inventors: Bo YU, Shaoqiang ZHANG
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Patent number: 10763250Abstract: The SCR-based ESD device has a 4-layered PNPN structure (NPN and PNP junction transistors) disposed in SOI having first and second device wells (N-well and P-well) abut forming a NP junction near a midline. First and second contact regions disposed in device wells are coupled to high and low power sources (I/O pad and ground). Internal isolation regions (shallower STI) extending partially not touching the bottom of surface substrate separate the first and second contact regions. A vertical gate is disposed over the NP junction or over a shallower STI which overlaps the junction and separate the second contact regions in x-direction. One or more horizontal gates separate the second contact regions in y-direction and guide the device wells underneath the shallower STI to outer edges to connect with the first contact regions for body contacts. A process for forming the device is also disclosed and is compatible with CMOS processes.Type: GrantFiled: November 15, 2019Date of Patent: September 1, 2020Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Wei Gao, Shaoqiang Zhang, Chien-Hsin Lee
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Patent number: 10680099Abstract: A transistor, such as laterally diffused (LD) transistor, having a band region below a drift well is disclosed. The band region and drift well are oppositely doped. The band region is self-aligned to the drift well. The band region reduces the depth of the drift well. A shallower drift well reduces risk of punch-through, improving reliability. In addition, the shallower drift well reduces the drain to body parasitic capacitance which improves performance.Type: GrantFiled: February 19, 2018Date of Patent: June 9, 2020Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Liming Li, Shaoqiang Zhang, Ruchil Kumar Jain, Raj Verma Purakh
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Publication number: 20200083213Abstract: The SCR-based ESD device has a 4-layered PNPN structure (NPN and PNP junction transistors) disposed in SOI having first and second device wells (N-well and P-well) abut forming a NP junction near a midline. First and second contact regions disposed in device wells are coupled to high and low power sources (I/O pad and ground). Internal isolation regions (shallower STI) extending partially not touching the bottom of surface substrate separate the first and second contact regions. A vertical gate is disposed over the NP junction or over a shallower STI which overlaps the junction and separate the second contact regions in x-direction. One or more horizontal gates separate the second contact regions in y-direction and guide the device wells underneath the shallower STI to outer edges to connect with the first contact regions for body contacts. A process for forming the device is also disclosed and is compatible with CMOS processes.Type: ApplicationFiled: November 15, 2019Publication date: March 12, 2020Inventors: Wei GAO, Shaoqiang ZHANG, Chien-Hsin LEE
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Patent number: 10573639Abstract: The SCR-based ESD device has a 4-layered PNPN structure (NPN and PNP junction transistors) disposed in SOI having first and second device wells (N-well and P-well) abut forming a NP junction near a midline. First and second contact regions disposed in device wells are coupled to high and low power sources (I/O pad and ground). Internal isolation regions (shallower STI) extending partially not touching the bottom of surface substrate separate the first and second contact regions. A vertical gate is disposed over the NP junction or over a shallower STI which overlaps the NP junction and separate the second contact regions in x-direction. One or more horizontal gates separate the second contact regions in y-direction and guide the device wells underneath the shallower STI to outer edges to connect with the first contact regions for body contacts. A process for forming the device is also disclosed and is compatible with CMOS processes.Type: GrantFiled: February 29, 2016Date of Patent: February 25, 2020Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Wei Gao, Shaoqiang Zhang, Chien-Hsin Lee
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Patent number: 10529738Abstract: Integrated circuits and methods for fabricating integrated circuits are provided. An exemplary method for fabricating an integrated circuit includes providing a substrate including a semiconductor layer over an insulator layer. The method includes selectively replacing portions of the semiconductor layer with insulator material to define an isolated semiconductor layer region. Further, the method includes selectively forming a relaxed layer on the isolated semiconductor layer region. Also, the method includes selectively forming a strained layer on the relaxed layer. The method forms a device over the strained layer.Type: GrantFiled: April 28, 2016Date of Patent: January 7, 2020Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Raj Verma Purakh, Shaoqiang Zhang, Rui Tze Toh
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Publication number: 20190259875Abstract: A transistor, such as laterally diffused (LD) transistor, having a band region below a drift well is disclosed. The band region and drift well are oppositely doped. The band region is self-aligned to the drift well. The band region reduces the depth of the drift well. A shallower drift well reduces risk of punch-through, improving reliability. In addition, the shallower drift well reduces the drain to body parasitic capacitance which improves performance.Type: ApplicationFiled: February 19, 2018Publication date: August 22, 2019Inventors: Liming LI, Shaoqiang ZHANG, Ruchil Kumar JAIN, Raj Verma PURAKH
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Patent number: 10388914Abstract: The invention discloses a preparation method for a printing OLED display, comprising the following steps: preparing a hole injection layer, a hole transfer layer or an electron blocking layer on an anodic substrate; forming a soluble fluorine-containing insulation layer with a printing method to encapsulate the whole substrate; performing inkjet printing on the soluble fluorine-containing insulation layer with a fluorine solvent to wash to expose all sub-pixel pits; performing inkjet printing with the solution drops of luminescent materials to form a RGB luminescent layer in the sub-pixel pits; preparing an electron injection layer, an electron transfer layer or a hole blocking layer; preparing a cathode with a printing method or an evaporating method, and finally performing encapsulation to complete the preparation of the single printing OLED display.Type: GrantFiled: June 19, 2018Date of Patent: August 20, 2019Inventors: Hua Zheng, Lei Yang, Wei Zhang, Lixian Fan, Geng Zhang, Shaoqiang Zhang, Minxia Liu, Chunhua Li
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Publication number: 20190123308Abstract: The invention discloses a preparation method for a printing OLED display, comprising the following steps: preparing a hole injection layer, a hole transfer layer or an electron blocking layer on an anodic substrate; forming a soluble fluorine-containing insulation layer with a printing method to encapsulate the whole substrate; performing inkjet printing on the soluble fluorine-containing insulation layer with a fluorine solvent to wash to expose all sub-pixel pits; performing inkjet printing with the solution drops of luminescent materials to form a RGB luminescent layer in the sub-pixel pits; preparing an electron injection layer, an electron transfer layer or a hole blocking layer; preparing a cathode with a printing method or an evaporating method, and finally performing encapsulation to complete the preparation of the single printing OLED display.Type: ApplicationFiled: June 19, 2018Publication date: April 25, 2019Inventors: Hua ZHENG, Lei YANG, Wei ZHANG, Lixian FAN, Geng ZHANG, Shaoqiang ZHANG, Minxia LIU, Chunhua LI
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Patent number: 10192886Abstract: Devices and methods for forming a device are presented. The method for forming the device includes providing a support substrate having first crystal orientation. A trap rich layer is formed on the support substrate. An insulator layer is formed over a top surface of the trap rich layer. The method further includes forming a top surface layer having second crystal orientation on the insulator layer. The support substrate, the trap rich layer, the insulator layer and the top surface layer correspond to a substrate and the substrate is defined with at least first and second device regions. A transistor is formed in the top surface layer in the first device region and a wide band gap device is formed in the second device region.Type: GrantFiled: July 31, 2017Date of Patent: January 29, 2019Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Purakh Raj Verma, Shaoqiang Zhang
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Patent number: 10193002Abstract: A metal oxide semiconductor varactor includes an active area doped well that is disposed within a semiconductor substrate and a gate structure including a first portion that extends over the active area doped well and a second portion that extends over the semiconductor substrate outside of the active area doped well. The varactor further includes at least one active area contact structure formed in physical and electrical connection with the active area doped well, in a three-sided contact-landing area of the active area doped well. Still further, the varactor includes a gate contact structure that is formed in physical and electrical contact with the gate structure in the second portion of the gate structure such that the gate contact structure overlies the semiconductor substrate outside of the active area doped well.Type: GrantFiled: September 13, 2016Date of Patent: January 29, 2019Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Kemao Lin, Shaoqiang Zhang, Raj Verma Purakh
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Patent number: 10062710Abstract: Integrated circuits and methods of producing the same are provided herein. In accordance with an exemplary embodiment, an integrated circuit includes an SOI substrate with an active layer overlying a buried insulator layer that in turn overlies a handle layer. A source is defined within the active layer, and a gate well is also defined within the active layer. A first ultra shallow trench isolation extends into the active layer, where a first portion of the active layer is positioned between the first ultra shallow trench isolation and the buried insulator layer. The first ultra shallow trench isolation is positioned between the source and the gate well.Type: GrantFiled: May 11, 2016Date of Patent: August 28, 2018Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Guan Huei See, Rui Tze Toh, Shaoqiang Zhang, Purakh Raj Verma
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Patent number: 10020394Abstract: Devices and methods for forming a device are disclosed. A substrate is provided. A first body well of a second polarity type is formed in the substrate. A second body well of the second polarity type is formed in the first body well. A bottom of the second body well and a bottom of the first body well are contiguous. Dopant concentrations of the first and second body wells include a graded profile. A transistor of a first polarity type is formed over the substrate. The transistor includes a source and a drain. The source is formed in the second body well.Type: GrantFiled: January 29, 2018Date of Patent: July 10, 2018Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Rui Tze Toh, Guan Huei See, Shaoqiang Zhang, Purakh Raj Verma
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Publication number: 20180151726Abstract: Devices and methods for forming a device are disclosed. A substrate is provided. A first body well of a second polarity type is formed in the substrate. A second body well of the second polarity type is formed in the first body well. A bottom of the second body well and a bottom of the first body well are contiguous. Dopant concentrations of the first and second body wells include a graded profile. A transistor of a first polarity type is formed over the substrate. The transistor includes a source and a drain. The source is formed in the second body well.Type: ApplicationFiled: January 29, 2018Publication date: May 31, 2018Inventors: Rui Tze TOH, Guan Huei SEE, Shaoqiang ZHANG, Purakh Raj VERMA