Patents by Inventor Yuan-Yao Li

Yuan-Yao Li 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).

  • Patent number: 11955392
    Abstract: One aspect of this description relates to a testing apparatus including an advance process control monitor (APCM) in a first wafer, a plurality of pads disposed over and coupled to the APCM. The plurality of pads are in a second wafer. The testing apparatus includes a testing unit disposed between the first wafer and the second wafer. The testing unit is coupled to the APCM. The testing unit includes a metal structure within a dielectric. The testing apparatus includes a plurality of through silicon vias (TSVs) extending in a first direction from the first wafer, through the dielectric of the testing unit, to the second wafer.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shuo-Wen Chang, Yu-Hsien Li, Min-Tar Liu, Yuan-Yao Chang
  • Patent number: 11786892
    Abstract: A catalyst structure is provided. The catalyst structure includes a porous carrier and a plurality of layered hydroxides. The porous carrier includes a nitrogen-doped carbon framework, a plurality of metal oxide particles and a plurality of carbon nanotubes. The nitrogen-doped carbon framework has a plurality of pores. The metal oxide particles are uniformly dispersed in the pores of the nitrogen-doped carbon framework. The carbon nanotubes are located on a surface of the nitrogen-doped carbon framework, and one end of each of the carbon nanotubes is connected to the surface of the nitrogen-doped carbon framework. The layered hydroxides are coated on the surface of the nitrogen-doped carbon framework.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: October 17, 2023
    Assignee: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Yuan-Yao Li, Ta-En Ko
  • Patent number: 11591221
    Abstract: This present invention provides a microporous carbon nanospheres, method for synthesizing and activating thereof, the method comprising: adding and mixing well deionized water, absolute ethanol, triblock copolymer, ammonia solution, resorcinol and formaldehyde solution; separating solid and liquid of the mixture solution, then drying the separated solid substrate to have a dried solid substrate; sintering the dried solid substrate surrounding by nitrogen twice and collecting microporous carbon nanospheres after cooling down. Further sintering to activate these microporous carbon nanospheres surrounding by carbon dioxide, and collecting activated microporous carbon nanospheres after cooling down. Microporous carbon nanospheres and activated microporous carbon nanospheres synthesized by this present invention have spherical structure, small size and high the specific surface area, and the process is simplified, cost-effective and environment-friendly.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: February 28, 2023
    Assignee: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Yuan-Yao Li, Cheng-Yen Tsai, Li-Ming Chiang
  • Publication number: 20220297102
    Abstract: A catalyst structure is provided. The catalyst structure includes a porous carrier and a plurality of layered hydroxides. The porous carrier includes a nitrogen-doped carbon framework, a plurality of metal oxide particles and a plurality of carbon nanotubes. The nitrogen-doped carbon framework has a plurality of pores. The metal oxide particles are uniformly dispersed in the pores of the nitrogen-doped carbon framework. The carbon nanotubes are located on a surface of the nitrogen-doped carbon framework, and one end of each of the carbon nanotubes is connected to the surface of the nitrogen-doped carbon framework. The layered hydroxides are coated on the surface of the nitrogen-doped carbon framework.
    Type: Application
    Filed: August 5, 2021
    Publication date: September 22, 2022
    Inventors: Yuan-Yao LI, Ta-En KO
  • Publication number: 20210070615
    Abstract: This present invention provides a microporous carbon nanospheres, method for synthesizing and activating thereof, the method comprising: adding and mixing well deionized water, absolute ethanol, triblock copolymer, ammonia solution, resorcinol and formaldehyde solution; separating solid and liquid of the mixture solution, then drying the separated solid substrate to have a dried solid substrate; sintering the dried solid substrate surrounding by nitrogen twice and collecting microporous carbon nanospheres after cooling down. Further sintering to activate these microporous carbon nanospheres surrounding by carbon dioxide, and collecting activated microporous carbon nanospheres after cooling down. Microporous carbon nanospheres and activated microporous carbon nanospheres synthesized by this present invention have spherical structure, small size and high the specific surface area, and the process is simplified, cost-effective and environment-friendly.
    Type: Application
    Filed: September 30, 2019
    Publication date: March 11, 2021
    Inventors: Yuan-Yao LI, Cheng-Yen Tsai, Li-Ming Chiang
  • Publication number: 20170327372
    Abstract: There is provided a method for manufacturing a plurality of nanostructures comprising the steps of providing a plurality of spherical Zn structures and oxidizing the spherical structures in ambient atmosphere at a temperature in the range of 350° C. to 600° C. for a time period in the range of h to 172 h, such that ZnO nanowires protruding from the spherical structures are formed. There is also provided a field emission arrangement comprising a cathode having the aforementioned ZnO nanowire structures arranged thereon.
    Type: Application
    Filed: November 19, 2015
    Publication date: November 16, 2017
    Applicant: Lightlab Sweden AB
    Inventors: Jonas TIRÉN, Yuan-Yao LI, Chia-Yen HSU, Ying-Pin WU
  • Patent number: 9193603
    Abstract: The present invention relates to an urchin-like iron oxide and a method for producing the urchin-like iron oxide. The urchin-like iron oxide comprises a core and multiple needle-like elongations protruded from the core. The needle-like elongations could be wire, rod, tube, cone, and flake. The length/width ratio of the needle-like elongation is high enough to apply in an optoelectronic field. The method in accordance with the present invention is to stably heat an iron-contained powder under room temperature by a thermal oxidation. The surface of the iron-contained powder is slow oxidized to form an urchin-like iron oxide with multiple uniform distributed needle-like elongations protruded from the surface. The size of each needle-like elongation is easily adjusted and changed by controlling the heating temperature. The method has advantages of simplified operation and lowered expense.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: November 24, 2015
    Assignee: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Yuan-Yao Li, Hsin-Chih Yu, Li-Chieh Hsu
  • Patent number: 9018831
    Abstract: A triode-type field emission device and method of manufacturing the same, suitable for use in screen print process of curved or planar substrate, comprising the following steps: firstly, form a cathode and a gate on a cathode substrate at the same time by means of screen printing, and a gap is located between gate and cathode, to avoid short circuit or interference; next, form a hedgehog-shape field emission layer on at least said cathode; then, form a transparent conductive layer and a light emitting layer sequentially on an anode substrate; and finally, dispose cathode substrate and anode substrate in parallel and spaced apart, and package them into a triode-type field emission device. Bias of cathode and gate can be controlled to achieve local adjustment of light. Also, gate may serve as an emitter, to increase field emission efficiency and its service life.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: April 28, 2015
    Assignee: National chung Cheng University
    Inventors: Yuan-Yao Li, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu, Yen-Ming Juan, Wang-Hua Lin
  • Patent number: 8821830
    Abstract: An urchin-like copper oxide material manufacturing method, comprising following steps: providing copper powder of length about 5 to 150 ?m; placing the copper powder on an aluminum oxide plate to be heated up; and heating up the aluminum oxide plate in a reaction temperature of 300° C. to 700° C., to obtain urchin-like copper oxide material on the aluminum oxide plate. By employing the manufacturing method, it only requires a simple thermal oxidation process to synthesize and obtain various types of urchin-like copper oxides having good stability and reproducibility, hereby achieving excellent performance in various opto-electronic applications.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: September 2, 2014
    Assignee: National Chung Cheng University
    Inventors: Yuan-Yao Li, Tai-Hsun Chang
  • Publication number: 20130183228
    Abstract: An urchin-like copper oxide material manufacturing method, comprising following steps: providing copper powder of length about 5 to 150 ?m; placing the copper powder on an aluminum oxide plate to be heated up; and heating up the aluminum oxide plate in a reaction temperature of 300° C. to 700° C., to obtain urchin-like copper oxide material on the aluminum oxide plate. By employing the manufacturing method, it only requires a simple thermal oxidation process to synthesize and obtain various types of urchin-like copper oxides having good stability and reproducibility, hereby achieving excellent performance in various opto-electronic applications.
    Type: Application
    Filed: April 5, 2012
    Publication date: July 18, 2013
    Inventors: Yuan-Yao LI, Tai-Hsun Chang
  • Publication number: 20130015778
    Abstract: A triode-type field emission device and method of manufacturing the same, suitable for use in screen print process of curved or planar substrate, comprising the following steps: firstly, form a cathode and a gate on a cathode substrate at the same time by means of screen printing, and a gap is located between gate and cathode, to avoid short circuit or interference; next, form a hedgehog-shape field emission layer on at least said cathode; then, form a transparent conductive layer and a light emitting layer sequentially on an anode substrate; and finally, dispose cathode substrate and anode substrate in parallel and spaced apart, and package them into a triode-type field emission device. Bias of cathode and gate can be controlled to achieve local adjustment of light. Also, gate may serve as an emitter, to increase field emission efficiency and its service life.
    Type: Application
    Filed: March 14, 2012
    Publication date: January 17, 2013
    Inventors: Yuan-Yao LI, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu, Yen-Ming Juan, Wang-Hua Lin
  • Patent number: 8299699
    Abstract: A double-sided light-emitting field emission device and method of manufacturing same, said device comprising at least two transparent conductive layers, mixed field emission layers, and transparent package device. Wherein, the mixed field emission layer of field emission source and phosphor are utilized directly to serve as anode and cathode alternatively, such that on applying an AC power supply, roles of anode and cathode are changed alternatively along with frequency, hereby forming double-sided light-emitting structure. Therefore, the applications of said double-sided light-emitting field emission device are pretty wide, and having advantages of protecting field emission source, activating field emission source, reducing field emission arcing effect, having conductive phosphor, and raising illumination.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: October 30, 2012
    Assignee: National Chung Cheng University
    Inventors: Yuan-Yao Li, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu, Wang-Hua Lin, Yen-Ming Juan, Sheng-Cheng Chiu
  • Publication number: 20120248967
    Abstract: A double-sided light-emitting field emission device and method of manufacturing same, said device comprising at least two transparent conductive layers, mixed field emission layers, and transparent package device. Wherein, the mixed field emission layer of field emission source and phosphor are utilized directly to serve as anode and cathode alternatively, such that on applying an AC power supply, roles of anode and cathode are changed alternatively along with frequency, hereby forming double-sided light-emitting structure. Therefore, the applications of said double-sided light-emitting field emission device are pretty wide, and having advantages of protecting field emission source, activating field emission source, reducing field emission arcing effect, having conductive phosphor, and raising illumination.
    Type: Application
    Filed: August 15, 2011
    Publication date: October 4, 2012
    Inventors: Yuan-Yao LI, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu, Wang-Hua Lin, Yen-Ming Juan, Sheng-Cheng Chiu
  • Patent number: 8206624
    Abstract: A method for producing carbon nanotubes uses a polymer as a raw material to undergo in situ thermal decomposition. The method includes steps of mixing the polymer and metallic catalyst through a multiple heating stage process of in-situ thermal decomposition to carbonize the polymer and release carbon elements to produce carbon nanotubes. Advantages of the present invention include easy to prepare, low temperature in manipulation, low production cost, and high safety.
    Type: Grant
    Filed: February 7, 2009
    Date of Patent: June 26, 2012
    Assignee: National Chung Cheng University
    Inventors: Yuan-Yao Li, Chao-Wei Huang
  • Publication number: 20120114944
    Abstract: The present invention relates to an urchin-like iron oxide and a method for producing the urchin-like iron oxide. The urchin-like iron oxide comprises a core and multiple needle-like elongations protruded from the core. The needle-like elongations could be wire, rod, tube, cone, and flake. The length/width ratio of the needle-like elongation is high enough to apply in an optoelectronic field. The method in accordance with the present invention is to stably heat an iron-contained powder under room temperature by a thermal oxidation. The surface of the iron-contained powder is slow oxidized to form an urchin-like iron oxide with multiple uniform distributed needle-like elongations protruded from the surface. The size of each needle-like elongation is easily adjusted and changed by controlling the heating temperature. The method has advantages of simplified operation and lowered expense.
    Type: Application
    Filed: April 4, 2011
    Publication date: May 10, 2012
    Inventors: Yuan-Yao LI, Hsin-Chih Yu, Li-Chieh Hsu
  • Publication number: 20100285715
    Abstract: A method of manufacturing carbon nanotube (CNT) field emission source, comprising the following steps of: providing a substrate; disposing an electrode layer on substrate; applying a mixture on electrode layer by means of screen printing, and mixture is a mixture of CNT paste and carbon powder; performing sinter in proceeding with a heat cracking reaction, and the carbon cracked and obtained in a heat cracking reaction of carbon powder and polymer in CNT paste is used as a carbon source, and that is used to grow a CNT emission layer of a hedgehog-shaped CNT cluster structure, thus obtaining a cathode plate after completion of sinter process. The hedgehog-shaped CNT cluster structure is a carbon nanotube (CNT) emission layer capable of having multi-direction electron emission routes. As such, it can realize the characteristics of high current density, and low turn-on voltage, while raising the stability of electron field emission.
    Type: Application
    Filed: October 28, 2009
    Publication date: November 11, 2010
    Inventors: Yuan-Yao Li, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu
  • Publication number: 20090257944
    Abstract: A method for producing carbon nanotubes uses a polymer as a raw material to undergo in situ thermal decomposition. The method includes steps of mixing the polymer and metallic catalyst through a multiple heating stage process of in-situ thermal decomposition to carbonize the polymer and release carbon elements to produce carbon nanotubes. Advantages of the present invention include easy to prepare, low temperature in manipulation, low production cost, and high safety.
    Type: Application
    Filed: February 7, 2009
    Publication date: October 15, 2009
    Inventors: Yuan-Yao Li, Chao-Wei Huang
  • Publication number: 20080311373
    Abstract: An electromagnetic wave absorbing material and a method for preparing the same are disclosed. The electromagnetic wave absorbing material consists of liquid resin, carbon nanocapsules, carbon fiber and hollow glass microsphere. All components are mixed well to form the electromagnetic-wave absorbing material. The method for preparing the electromagnetic-wave absorbing materials includes steps of: mixing the liquid resin, carbon nanocapsules, carbon fiber and hollow glass microsphere well to form a slurry solution; pour the slurry solution into a mold; after curing and cooling, an electromagnetic-wave absorbing material is obtained. The electromagnetic-wave absorbing material with density ranging from 0.75 to 1.0 g/ml matches requirements of compact design and light weight in high technology industries.
    Type: Application
    Filed: June 12, 2007
    Publication date: December 18, 2008
    Inventors: Jen-Sung Hsu, Yuan-Yao Li, Meng-Tan Chiang, Chia-Tung Liu
  • Patent number: 7452484
    Abstract: An inorganic phosphor and a method for manufacturing the same are proposed. The sol-gel method is used and the elements vanadium and sulfate are added to synthesize a red-emission gadolinium titanium oxide phosphor doped with Eu3+, V and S to change the original red/orange-emission property and enhance the red-emission intensity. Moreover, the elements vanadium and sulfate replace the rare-earth Eu3+ element as active sites to obtain a white-emission gadolinium titanium oxide phosphor doped with V and S. Using this single-kind phosphor, white light can be emitted under the excitation of violet light without the need of mixing multiple colors.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: November 18, 2008
    Assignee: National Chung Cheng University
    Inventors: Yuan-Yao Li, Kuo-Min Lin
  • Publication number: 20070108412
    Abstract: An inorganic phosphor and a method for manufacturing the same are proposed. The sol-gel method is used and the elements vanadium and sulfate are added to synthesize a red-emission gadolinium titanium oxide phosphor doped with Eu3+, V and S to change the original red/orange-emission property and enhance the red-emission intensity. Moreover, the elements vanadium and sulfate replace the rare-earth Eu3+ element as active sites to obtain a white-emission gadolinium titanium oxide phosphor doped with V and S. Using this single-kind phosphor, white light can be emitted under the excitation of violet light without the need of mixing multiple colors.
    Type: Application
    Filed: June 21, 2006
    Publication date: May 17, 2007
    Inventors: Yuan-Yao Li, Kuo-Min Lin