Patents by Inventor Yih-Ming LIU
Yih-Ming LIU 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: 20240090231Abstract: An integrated circuit is provided. The integrated circuit includes a three-dimensional memory device, a first word line driving circuit and a second word line driving circuit. The three-dimensional memory device includes stacking structures separately extending along a column direction. Each stacking structure includes a stack of word lines. The stacking structures have first staircase structures at a first side and second staircase structures at a second side. The word lines extend to steps of the first and second staircase structures. The first and second word line driving circuits lie below the three-dimensional memory device, and extend along the first and second sides, respectively. Some of the word lines in each stacking structure are routed to the first word line driving circuit from a first staircase structure, and others of the word lines in each stacking structure are routed to the second word line driving circuit from a second staircase structure.Type: ApplicationFiled: November 21, 2023Publication date: March 14, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Bo-Feng Young, Yi-Ching Liu, Sai-Hooi Yeong, Yih Wang, Yu-Ming Lin
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Publication number: 20240071504Abstract: A memory device is provided, including a memory array, a driver circuit, and recover circuit. The memory array includes multiple memory cells. Each memory cell is coupled to a control line, a data line, and a source line and, during a normal operation, is configured to receive first and second voltage signals. The driver circuit is configured to output at least one of the first voltage signal or the second voltage signal to the memory cells. The recover circuit is configured to output, during a recover operation, a third voltage signal, through the driver circuit to at least one of the memory cells. The third voltage signal is configured to have a first voltage level that is higher than a highest level of the first voltage signal or the second voltage signal, or lower than a lowest level of the first voltage signal or the second voltage signal.Type: ApplicationFiled: August 30, 2022Publication date: February 29, 2024Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Pei-Chun LIAO, Yu-Kai CHANG, Yi-Ching LIU, Yu-Ming LIN, Yih WANG, Chieh LEE
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Patent number: 9142376Abstract: A method for fabricating field emission cathode, a field emission cathode, and a field emission lighting source are provided. The method includes: forming a catalyst crystallite nucleus layer on the surface of cathode substrate by self-assembly of a noble metal catalyst, growing a composited nano carbon material on the cathode substrate by using a TCVD process, in which the composited nano carbon material includes coil carbon nano tubes and coil carbon nano fibers. The measured quantity of total coil carbon nano tubes and coil carbon nano fibers is higher than 40%. The field emission cathode is fabricated by the aforementioned method, and the field emission lighting source includes the aforementioned field emission cathode.Type: GrantFiled: March 20, 2013Date of Patent: September 22, 2015Assignee: NATIONAL DEFENSE UNIVERSITYInventors: Ming-Der Ger, Nen-Wen Pu, Yih-Ming Liu, Kun-Ju Chung
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Patent number: 9064669Abstract: A field emission cathode comprises at least one electron emitting parcel, and at least one ion absorbing parcel each being electrically connected with each of the at least one electron emitting parcel. The electron emitting parcel includes a first substrate and a nano emission component disposed on the first substrate for emitting electrons in an electric field. The ion absorbing parcel is constituted by a second substrate, in which the electric conductivity of the first substrate is less than that of the second substrate. A field emission light comprises the said field emission cathode, a field emission anode and a power supply. Thus the positive ions in an electric field can be absorbed by ion absorbing parcels to suppress an ion bombardment in the electric field. The efficiency of the electric field of the field emission is then maintained, and the lifetime of the field emission light is enhanced.Type: GrantFiled: July 15, 2013Date of Patent: June 23, 2015Assignee: NATIONAL DEFENSE UNIVERSITYInventors: Yih-Ming Liu, Meng-Jey Youh, Nen-Wen Pu, Ming-Der Ger, Kevin Cheng, Kun-Ju Chung, Jhih-Cheng Jiang, Guan-Fang Xu
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Patent number: 8999441Abstract: A preparing method for coiled nano carbon material is provided and includes forming a noble metal catalyst crystallite nucleus layer on the surface of the substrate by displacement of a noble metal catalyst, forming a composited nano carbon material on the metal layer of the substrate by using TCVD; in which the composited nano carbon material includes coiled carbon nano tubes and coiled carbon nano fiber. The measured quantity of the total coiled nano carbon tubes and coiled nano carbon fiber in the total measured quantity of nano carbon material is greater than 30%. The coiled nano carbon material can be acquired by scraping it off from the substrate surface.Type: GrantFiled: March 18, 2013Date of Patent: April 7, 2015Assignee: National Defense UniversityInventors: Yih-Ming Liu, Ming-Der Ger, Nen-Wen Pu, Kun-Ju Chung, Ming-Hsien Lin
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Publication number: 20150015166Abstract: A field emission cathode comprises at least one electron emitting parcel, and at least one ion absorbing parcel each being electrically connected with each of the at least one electron emitting parcel. The electron emitting parcel includes a first substrate and a nano emission component disposed on the first substrate for emitting electrons in an electric field. The ion absorbing parcel is constituted by a second substrate, in which the electric conductivity of the first substrate is less than that of the second substrate. A field emission light comprises the said field emission cathode, a field emission anode and a power supply. Thus the positive ions in an electric field can be absorbed by ion absorbing parcels to suppress an ion bombardment in the electric field. The efficiency of the electric field of the field emission is then maintained, and the lifetime of the field emission light is enhanced.Type: ApplicationFiled: July 15, 2013Publication date: January 15, 2015Inventors: Yih-Ming LIU, Meng-Jey YOUH, Nen-Wen PU, Ming-Der GER, Kevin CHENG, Kun-Ju CHUNG, Jhih-Cheng JIANG, Guan-Fang XU
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Publication number: 20140057097Abstract: A preparing method for coiled nano carbon material is provided and includes forming a noble metal catalyst crystallite nucleus layer on the surface of the substrate by displacement of a noble metal catalyst, forming a composited nano carbon material on the metal layer of the substrate by using TCVD; in which the composited nano carbon material includes coiled carbon nano tubes and coiled carbon nano fiber. The measured quantity of the total coiled nano carbon tubes and coiled nano carbon fiber in the total measured quantity of nano carbon material is greater than 30%. The coiled nano carbon material can be acquired by scraping it off from the substrate surface.Type: ApplicationFiled: March 18, 2013Publication date: February 27, 2014Applicant: NATIONAL DEFENSE UNIVERSITYInventors: YIH-MING LIU, MING-DER GER, NEN-WEN PU, KUN-JU CHUNG, MING-HSIEN LIN
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Publication number: 20140055027Abstract: A method for fabricating field emission cathode, a field emission cathode, and a field emission lighting source are provided. The method includes: forming a catalyst crystallite nucleus layer on the surface of cathode substrate by self-assembly of a noble metal catalyst, growing a composited nano carbon material on the cathode substrate by using a TCVD process, in which the composited nano carbon material includes coil carbon nano tubes and coil carbon nano fibers. The measured quantity of total coil carbon nano tubes and coil carbon nano fibers is higher than 40%. The field emission cathode is fabricated by the aforementioned method, and the field emission lighting source includes the aforementioned field emission cathode.Type: ApplicationFiled: March 20, 2013Publication date: February 27, 2014Applicant: National Defense UniversityInventors: MING-DER GER, NEN-WEN PU, YIH-MING LIU, KUN-JU CHUNG
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Publication number: 20110212319Abstract: The invention discloses a carbon nanotube device, comprising a substrate, a catalyst layer formed on the substrate, a porous capping layer formed on the catalyst layer, and a carbon nanotube formed on the porous capping layer. A wafer for growing a carbon nanotube comprises a substrate, a catalyst layer formed on the substrate, and a porous capping layer formed on the catalyst layer, with carbon nanotube growning on the porous capping layer.Type: ApplicationFiled: April 26, 2011Publication date: September 1, 2011Inventors: LI-CHUN WANG, Han-Wen Kuo, Yuh Sung, Shiaw-Ruey Lin, Ming-Der Ger, Yih-Ming Liu, Wei-Ta Chang
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Publication number: 20100124655Abstract: The invention discloses a method for fabricating a carbon nanotube, and the method comprises the following steps: providing a substrate; forming a catalyst layer on the substrate; forming a porous capping layer on the catalyst layer to finish a wafer; forming the carbon nanotube on the wafer. By the porous capping layer, the well-aligned carbon nanotube can grow on the wafer through thermal CVD.Type: ApplicationFiled: November 18, 2008Publication date: May 20, 2010Inventors: LI-CHUN WANG, Han-Wen Kuo, Yuh Sung, Shiaw-Ruey Lin, Ming-Der Ger, Yih-Ming Liu, Wei-Ta Chang
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Publication number: 20090309481Abstract: The present invention relates to methods for fabricating a cathode emitter and a zinc oxide anode for a field emission device to improve the adhesion between emitters and a substrate and enhance the luminous efficiency of a zinc oxide thin film so that the disclosed methods can be applied in displays and lamps. In comparison to a conventional method for fabricating a field emission device, the method according to the present invention can reduce the cost and time for manufacture and is suitable for fabricating big-sized products. In addition, the present invention further discloses a field emission device comprising a zinc oxide/nano carbon material cathode, a zinc oxide anode and a spacer.Type: ApplicationFiled: February 18, 2009Publication date: December 17, 2009Applicant: National Defense UniversityInventors: Yu-Hsien CHOU, Yuh SUNG, Ming-Der GER, Yih-Ming LIU, Chun-Wei KUO, Jun-Yu YEH, Yun-Chih FAN
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Publication number: 20080248430Abstract: A nano-carbon material field emission cathode plate is prepared by an oxidation-reduction reaction, which includes immersing a substrate having a first metal layer thereon in a solution of a second metal salt with a nano-carbon material dispersed therein. A difference between the two standard redox potentials of the first metal and the second metal is so great that ions of the second metal in the solution are reduced to elemental metal while the first metal is oxidized, and thus a layer of the second metal is formed on the first metal layer with the nano-carbon material partially embedded in the second metal layer.Type: ApplicationFiled: July 18, 2007Publication date: October 9, 2008Applicant: NATIONAL DEFENSE UNIVERSITYInventors: Yih-Ming Liu, Yuh Sung, Ming-Der Ger, Yun-Chih Fan, Yu-Hsien Chou, Chun-Tin Lin
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Publication number: 20060240189Abstract: The present invention relates to a low-temperature method for forming carbon nanotubes, which mainly includes preparing a co-catalyst of composite metal particles on a substrate, and growing carbon nanotubes on the substrate by a thermal CVD process at 400° C. The present invention uses a non-isothermal deposition (NITD) and a metal chemical substitution reaction to prepare the co-catalyst particles on the substrate.Type: ApplicationFiled: October 11, 2005Publication date: October 26, 2006Applicant: CHUNG CHENG INSTITUTE OF TECHNOLOGY, NATIONAL DEFENSE UNIVERSITYInventors: Ming-Der Ger, Yuh Sung, Yih-Ming Liu, Mei-Jiun Shie, Han-Tao Wang