Patents by Inventor Lo Hsieh
Lo Hsieh 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: 11984478Abstract: A method includes forming a first portion of a spacer layer over a first fin and a second portion of the spacer layer over a second fin, performing a first etching process to recess the first portion of the spacer layer with respect to the second portion of the spacer layer to form first spacers on sidewalls of the first fin, subsequently performing a second etching process to recess the second portion of the spacer layer with respect to the first spacers to form second spacers on sidewalls of the second fin, where the second spacers are formed to a height greater than that of the first spacers, and forming a first epitaxial source/drain feature and a second epitaxial source/drain feature between the first spacers and the second spacers, respectively, where the first epitaxial source/drain feature is larger than that of the second epitaxial source/drain feature.Type: GrantFiled: June 8, 2021Date of Patent: May 14, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Shu Wen Wang, Chih-Teng Liao, Chih-Shan Chen, Jui Fu Hsieh, Dave Lo
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Patent number: 11926017Abstract: A cleaning process monitoring system, comprising: a cleaning container comprising an inlet for receiving a cleaning solution and an outlet for draining a waste solution; a particle detector coupled to the outlet and configured to measure a plurality of particle parameters associated with the waste solution so as to provide a real-time monitoring of the cleaning process; a pump coupled to the cleaning container and configured to provide suction force to draw solution through the cleaning system; a controller coupled to the pump and the particle detector and configured to receive the plurality of particle parameters from the particle detector and to provide control to the cleaning system; and a host computer coupled to the controller and configured to provide at least one control parameter to the controller.Type: GrantFiled: May 5, 2021Date of Patent: March 12, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Charlie Wang, Yu-Ping Tseng, Y. J. Chen, Wai-Ming Yeung, Chien-Shen Chen, Danny Kuo, Yu-Hsuan Hsieh, Hsuan Lo
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Patent number: 11920304Abstract: The present invention describes a method for preparing graphene by mixing graphite and carbon nanofibrils. The prepared graphene can be used to form nanopaper. The present invention also provides a method of preparing nanopaper by suspending cellulose nanofibrils and graphene, followed by vacuum filtering of the suspension.Type: GrantFiled: October 28, 2019Date of Patent: March 5, 2024Assignee: The Regents of the University of CaliforniaInventors: You-Lo Hsieh, Xuezhu Xu
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Patent number: 11549854Abstract: The present disclosure provides an aerogel comprising conductive polymers and cellulose nanofibrils (CNF). The present disclosure also provides a sensor comprising the aerogels of the present invention.Type: GrantFiled: May 14, 2020Date of Patent: January 10, 2023Assignee: The Regents of the University of CaliforniaInventors: You-Lo Hsieh, Jian Zhou
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Publication number: 20220378713Abstract: The present invention provides compositions of soy protein gel fibers, soy protein fiber membranes, and soy protein films. The present invention also provides methods of making the soy protein compositions and also uses of the compositions.Type: ApplicationFiled: October 1, 2020Publication date: December 1, 2022Inventors: You-Lo Hsieh, Xingchen Chen
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Publication number: 20220195148Abstract: The present disclosure provides a method for preparing an aerogel or a foam, the method comprising: forming a reaction mixture comprising a cellulose nanofibril gel, a first solvent, and one or more crosslinking agents under conditions sufficient to crosslink the gel; and contacting the crosslinked gel with a second solvent under conditions sufficient to dry the crosslinked gel, thereby forming an aerogel or foam.Type: ApplicationFiled: December 21, 2021Publication date: June 23, 2022Inventors: YOU-LO HSIEH, FENG JIANG
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Patent number: 11248107Abstract: The present disclosure provides a method for preparing an aerogel or a foam, the method comprising: forming a reaction mixture comprising a cellulose nanofibril gel, a first solvent, and one or more crosslinking agents under conditions sufficient to crosslink the gel; and contacting the crosslinked gel with a second solvent under conditions sufficient to dry the crosslinked gel, thereby forming an aerogel or foam.Type: GrantFiled: March 22, 2019Date of Patent: February 15, 2022Assignee: The Regents of the University of CaliforniaInventors: You-Lo Hsieh, Feng Jiang
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Publication number: 20210381167Abstract: The present invention describes a method for preparing graphene by mixing graphite and carbon nanofibrils. The prepared graphene can be used to form nanopaper. The present invention also provides a method of preparing nanopaper by suspending cellulose nanofibrils and graphene, followed by vacuum filtering of the suspension.Type: ApplicationFiled: October 28, 2019Publication date: December 9, 2021Inventors: You-Lo HSIEH, Xuezhu XU
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Publication number: 20210156051Abstract: The present disclosure provides a coaxial fiber comprising a cellulose fiber exterior, and a hollow interior, wherein the aerogel occupies the hollow interior of the cellulose fiber. The present disclosure also provides a method of making the coaxial fiber, and a method of maintain a temperature differential in two zones using the coaxial fibers described herein.Type: ApplicationFiled: November 19, 2020Publication date: May 27, 2021Inventors: You-Lo HSIEH, Jian ZHOU
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Publication number: 20200363273Abstract: The present disclosure provides an aerogel comprising conductive polymers and cellulose nanofibrils (CNF). The present disclosure also provides a sensor comprising the aerogels of the present invention.Type: ApplicationFiled: May 14, 2020Publication date: November 19, 2020Inventors: You-Lo HSIEH, Jian ZHOU
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Publication number: 20190309144Abstract: The present disclosure provides a method for preparing an aerogel or a foam, the method comprising: forming a reaction mixture comprising a cellulose nanofibril gel, a first solvent, and one or more crosslinking agents under conditions sufficient to crosslink the gel; and contacting the crosslinked gel with a second solvent under conditions sufficient to dry the crosslinked gel, thereby forming an aerogel or foam.Type: ApplicationFiled: March 22, 2019Publication date: October 10, 2019Inventors: YOU-LO HSIEH, FENG JIANG
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Patent number: 7076870Abstract: A surface-mount package for an oscillator crystal blank is made from a metal sheet substrate. Half-etched cavities are formed on one side of the sheet. The half-etched cavities are filled in with an insulator. The center of the insulator is drilled until metal is reached, leaving insulator on the sidewalls of the resulting drilled via. The bottom of the drilled via is plated with a contact metal such as nickel-gold, and then the entire drilled via is filled in with metal such as copper to form via-metal. An external metal surface-mount pad is formed on the surface of each via-metal. The metal sheet is flipped over, and a larger inner cavity etched through until the contact metal over the via-metal is reached. Conductive epoxy is placed on the contact metal, and electrodes on the crystal blank are attached to conductive epoxy.Type: GrantFiled: August 16, 2004Date of Patent: July 18, 2006Assignee: Pericom Semiconductor Corp.Inventor: Wen-Lo Hsieh
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Publication number: 20060032051Abstract: A surface-mount package for an oscillator crystal blank is made from a metal sheet substrate. Half-etched cavities are formed on one side of the sheet. The half-etched cavities are filled in with an insulator. The center of the insulator is drilled until metal is reached, leaving insulator on the sidewalls of the resulting drilled via. The bottom of the drilled via is plated with a contact metal such as nickel-gold, and then the entire drilled via is filled in with metal such as copper to form via-metal. An external metal surface-mount pad is formed on the surface of each via-metal. The metal sheet is flipped over, and a larger inner cavity etched through until the contact metal over the via-metal is reached. Conductive epoxy is placed on the contact metal, and electrodes on the crystal blank are attached to conductive epoxy.Type: ApplicationFiled: August 16, 2004Publication date: February 16, 2006Applicant: PERICOM SEMICONDUCTOR CORP.Inventor: Wen-Lo Hsieh
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Publication number: 20040241436Abstract: The present invention provides nano-porous fibers and protein membrane compositions. In certain embodiments, continuous fiber compositions are provided having nanometer sized diameters and surface pores. In another embodiment, a protein membrane composition is provided comprising a protein; and a polymer, wherein the protein and the polymer are electrospun to form a protein membrane composition. In certain instance, the protein is covalently bound to the fiber.Type: ApplicationFiled: January 20, 2004Publication date: December 2, 2004Applicant: The Regents of the University of CaliforniaInventors: You-Lo Hsieh, Jiangbing Xie, Yuhong Wang, Hong Chen, Lei Li, Lifeng Zhang, Corine Cecile
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Publication number: 20030119172Abstract: Textile fibers are treated with enzymes in the absence of surfactants, with the effect of increasing the wettability and absorbency of the fibers. The enzymes are pectinases, cellulases, proteases, lipases or combinations thereof. The wetting properties of cotton fibers are found to be most substantially improved by treatment with a mixture of cellulase and pectinase. The effects of five hydrolyzing enzymes on improving the hydrophilicity of several polyester fabrics have been studied. Four out of the five lipases studied improve the water wetting and absorbent properties of the regular polyester fabrics more than alkaline hydrolysis under optimal conditions (3N NaOH at 55° C. for 2 hours). Compared to aqueous hydrolysis, the enzyme reactions have shown to be effective under more moderate conditions, including a relatively low concentration (0.01 g/L), a shorter reaction time (10 minutes), at an ambient temperature (25° C.).Type: ApplicationFiled: August 8, 2002Publication date: June 26, 2003Applicant: The Regents of the University of CaliforniaInventors: You-Lo Hsieh, Mary Michelle Hartzell, Matthew G. Boston, Kathleen A. Clarkson, Katherine D. Collier, Thomas P. Graycar, Edmund A. Larenas
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Patent number: 6521484Abstract: The present invention provides a mold injection method for semiconductor device by which the problem of residual metal is overcome. The inventive method comprises following steps: die attaching; wire bonding; attaching solder-resisting tape around the die; molding; removing the older-resisting tape; marking; ball placement: and singulation.Type: GrantFiled: May 5, 1999Date of Patent: February 18, 2003Assignee: Orient Semiconductor Electronics, Ltd.Inventor: Wen-Lo Hsieh
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Publication number: 20020115193Abstract: Textile fibers are treated with enzymes in the absence of surfactants, with the effect of increasing the wettability and absorbency of the fibers. The enzymes are pectinases, cellulases, proteases, lipases or combinations thereof. The wetting properties of cotton fibers are found to be most substantially improved by treatment with a mixture of cellulase and pectinase. The effects of five hydrolyzing enzymes on improving the hydrophilicity of several polyester fabrics have been studied. Four out of the five lipases studied improve the water wetting and absorbent properties of the regular polyester fabrics more than alkaline hydrolysis under optimal conditions (3N NaOH at 55° C. for 2 hours). Compared to aqueous hydrolysis, the enzyme reactions have shown to be effective under more moderate conditions, including a relatively low concentration (0.01 g/L), a shorter reaction time (10 minutes), at an ambient temperature (25° C.).Type: ApplicationFiled: December 27, 1999Publication date: August 22, 2002Inventors: YOU-LO HSIEH, MARY MICHELLE HARTZELL, MATTHEW G. BOSTON, KATHLEEN A. CLARKSON, KATHERINE D. COLLIER, THOMAS P. GRAYCAR, EDMUND A. LARENAS
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Patent number: 6436696Abstract: Textile fibers are treated with enzymes in the absence of surfactants, with the effect of increasing the wettability and absorbency of the fibers. The enzymes are pectinases, cellulases, proteases, lipases or combinations thereof. The wetting properties of cotton fibers are found to be most substantially improved by treatment with a mixture of cellulase and pectinase. The effects of five hydrolyzing enzymes on improving the hydrophilicity of several polyester fabrics have been studied. Four out of the five lipases studied improve the water wetting and absorbent properties of the regular polyester fabrics more than alkaline hydrolysis under optimal conditions (3N NaOH at 55° C. for 2 hours). Compared to aqueous hydrolysis, the enzyme reactions have shown to be effective under more moderate conditions, including a relatively low concentration (0.01 g/L), a shorter reaction time (10 minutes), at an ambient temperature (25° C.).Type: GrantFiled: December 27, 1999Date of Patent: August 20, 2002Assignees: The Regents of the University of California, Genencor International, Inc.Inventors: You-lo Hsieh, Mary Michelle Hartzell, Matthew G. Boston, Kathleen A. Clarkson, Katherine D. Collier, Thomas P. Graycar, Edmund A. Larenas
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Patent number: 6066494Abstract: Textile fibers are treated with enzymes in the absence of surfactants, with the effect of increasing the wettability and absorbency of the fibers. The enzymes are pectinases, cellulases, proteases, lipases or combinations thereof. The wetting properties of cotton fibers are found to be most substantially improved by treatment with a mixture of cellulase and pectinase. The effects of five hydrolyzing enzymes on improving the hydrophilicity of several polyester fabrics have been studied. Four out of the five lipases studied improve the water wetting and absorbent properties of the regular polyester fabrics more than alkaline hydrolysis under optimal conditions (3N NaOH at 55.degree. C. for 2 hours). Compared to aqueous hydrolysis, the enzyme reactions have shown to be effective under more moderate conditions, including a relatively low concentration (0.01 g/L), a shorter reaction time (10 minutes), at an ambient temperature (25.degree. C.).Type: GrantFiled: March 16, 1998Date of Patent: May 23, 2000Assignee: The Regents of the University of CaliforniaInventors: You-lo Hsieh, Mary Michelle Hartzell, Matthew G. Boston, Kathleen A. Clarkson, Katherine D. Collier, Thomas P. Graycar, Edmund A. Larenas
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Patent number: 6033934Abstract: A semiconductor chip fabrication method, including the steps of: (a) attaching dies to a chip carrier and then bonding lead wires to the dies, (b) adhering heat-resisting plastic strips to the chip carrier and connecting them to each die at one corner for guiding a molten resin to the dies, (c) pouring a molten resin out of nozzles of a molding apparatus, permitting the molten resin to be guided by the heat-resisting plastic strips to the dies and then molded on the dies, and (d) marking the molded dies with marks and placing them with balls, and then separating the individually molded dies from one other.Type: GrantFiled: December 9, 1997Date of Patent: March 7, 2000Assignee: Orient Semiconductor Electronics Ltd.Inventor: Wen-Lo Hsieh