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).
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Patent number: 11955392Abstract: 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: GrantFiled: May 12, 2021Date of Patent: April 9, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Shuo-Wen Chang, Yu-Hsien Li, Min-Tar Liu, Yuan-Yao Chang
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Patent number: 11786892Abstract: 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: GrantFiled: August 5, 2021Date of Patent: October 17, 2023Assignee: NATIONAL CHUNG CHENG UNIVERSITYInventors: Yuan-Yao Li, Ta-En Ko
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Patent number: 11591221Abstract: 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: GrantFiled: September 30, 2019Date of Patent: February 28, 2023Assignee: NATIONAL CHUNG CHENG UNIVERSITYInventors: Yuan-Yao Li, Cheng-Yen Tsai, Li-Ming Chiang
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Publication number: 20220297102Abstract: 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: ApplicationFiled: August 5, 2021Publication date: September 22, 2022Inventors: Yuan-Yao LI, Ta-En KO
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Publication number: 20210070615Abstract: 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: ApplicationFiled: September 30, 2019Publication date: March 11, 2021Inventors: Yuan-Yao LI, Cheng-Yen Tsai, Li-Ming Chiang
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Publication number: 20170327372Abstract: 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: ApplicationFiled: November 19, 2015Publication date: November 16, 2017Applicant: Lightlab Sweden ABInventors: Jonas TIRÉN, Yuan-Yao LI, Chia-Yen HSU, Ying-Pin WU
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Patent number: 9193603Abstract: 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: GrantFiled: December 12, 2012Date of Patent: November 24, 2015Assignee: NATIONAL CHUNG CHENG UNIVERSITYInventors: Yuan-Yao Li, Hsin-Chih Yu, Li-Chieh Hsu
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Patent number: 9018831Abstract: 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: GrantFiled: March 14, 2012Date of Patent: April 28, 2015Assignee: National chung Cheng UniversityInventors: Yuan-Yao Li, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu, Yen-Ming Juan, Wang-Hua Lin
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Patent number: 8821830Abstract: 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: GrantFiled: April 5, 2012Date of Patent: September 2, 2014Assignee: National Chung Cheng UniversityInventors: Yuan-Yao Li, Tai-Hsun Chang
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Publication number: 20130183228Abstract: 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: ApplicationFiled: April 5, 2012Publication date: July 18, 2013Inventors: Yuan-Yao LI, Tai-Hsun Chang
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Publication number: 20130015778Abstract: 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: ApplicationFiled: March 14, 2012Publication date: January 17, 2013Inventors: Yuan-Yao LI, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu, Yen-Ming Juan, Wang-Hua Lin
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Patent number: 8299699Abstract: 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: GrantFiled: August 15, 2011Date of Patent: October 30, 2012Assignee: National Chung Cheng UniversityInventors: Yuan-Yao Li, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu, Wang-Hua Lin, Yen-Ming Juan, Sheng-Cheng Chiu
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Publication number: 20120248967Abstract: 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: ApplicationFiled: August 15, 2011Publication date: October 4, 2012Inventors: Yuan-Yao LI, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu, Wang-Hua Lin, Yen-Ming Juan, Sheng-Cheng Chiu
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Patent number: 8206624Abstract: 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: GrantFiled: February 7, 2009Date of Patent: June 26, 2012Assignee: National Chung Cheng UniversityInventors: Yuan-Yao Li, Chao-Wei Huang
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Publication number: 20120114944Abstract: 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: ApplicationFiled: April 4, 2011Publication date: May 10, 2012Inventors: Yuan-Yao LI, Hsin-Chih Yu, Li-Chieh Hsu
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Publication number: 20100285715Abstract: 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: ApplicationFiled: October 28, 2009Publication date: November 11, 2010Inventors: Yuan-Yao Li, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu
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Publication number: 20090257944Abstract: 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: ApplicationFiled: February 7, 2009Publication date: October 15, 2009Inventors: Yuan-Yao Li, Chao-Wei Huang
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Publication number: 20080311373Abstract: 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: ApplicationFiled: June 12, 2007Publication date: December 18, 2008Inventors: Jen-Sung Hsu, Yuan-Yao Li, Meng-Tan Chiang, Chia-Tung Liu
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Patent number: 7452484Abstract: 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: GrantFiled: June 21, 2006Date of Patent: November 18, 2008Assignee: National Chung Cheng UniversityInventors: Yuan-Yao Li, Kuo-Min Lin
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Publication number: 20070108412Abstract: 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: ApplicationFiled: June 21, 2006Publication date: May 17, 2007Inventors: Yuan-Yao Li, Kuo-Min Lin