Patents by Inventor Li-Sheng Wang
Li-Sheng Wang 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: 11978664Abstract: A method includes forming a first conductive feature over a semiconductor substrate, forming an ILD layer over the first conductive feature, patterning the ILD layer to form a trench, and forming a conductive layer over the patterned ILD layer to fill the trench. The method further includes polishing the conductive layer to form a via contact configured to interconnect the first conductive feature with a second conductive feature, where polishing the conductive layer exposes a top surface of the ILD layer, polishing the exposed top surface of the ILD layer, such that a top portion of the via contact protrudes from the exposed top surface of the ILD layer, and forming the second conductive feature over the via contact, such that the top portion of the via contact extends into the second conductive feature.Type: GrantFiled: July 29, 2022Date of Patent: May 7, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Pang-Sheng Chang, Chao-Hsun Wang, Kuo-Yi Chao, Fu-Kai Yang, Mei-Yun Wang, Li-Chieh Wu, Chun-Wei Hsu
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Publication number: 20240096630Abstract: Disclosed is a semiconductor fabrication method. The method includes forming a gate stack in an area previously occupied by a dummy gate structure; forming a first metal cap layer over the gate stack; forming a first dielectric cap layer over the first metal cap layer; selectively removing a portion of the gate stack and the first metal cap layer while leaving a sidewall portion of the first metal cap layer that extends along a sidewall of the first dielectric cap layer; forming a second metal cap layer over the gate stack and the first metal cap layer wherein a sidewall portion of the second metal cap layer extends further along a sidewall of the first dielectric cap layer; forming a second dielectric cap layer over the second metal cap layer; and flattening a top layer of the first dielectric cap layer and the second dielectric cap layer using planarization operations.Type: ApplicationFiled: January 12, 2023Publication date: March 21, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Li-Wei Yin, Tzu-Wen Pan, Yu-Hsien Lin, Yu-Shih Wang, Jih-Sheng Yang, Shih-Chieh Chao, Yih-Ann Lin, Ryan Chia-Jen Chen
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Patent number: 11884946Abstract: Methods of preparing protein films in the presence of organofluorine compounds are provided that can produce protein films that retain the solution phase characteristics of the proteins. The protein films can be coatings for medical devices.Type: GrantFiled: November 5, 2018Date of Patent: January 30, 2024Assignee: University of MassachusettsInventors: Li-Sheng Wang, Sanjana Gopalakrishnan, Vincent M. Rotello
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Publication number: 20230174708Abstract: The invention relates to compositions comprising a) at least one norbornene ester; b) TCPD; c) optionally DCPD; and d) at least one olefin metathesis catalyst. The invention also relates to articles of manufacture made from the compositions of the invention, and methods of making the articles. The invention also relates to coating compositions comprising the compositions of the invention, and to objects or substrates coated with the coating compositions of the invention, which may then be cured. The invention also relates to methods of coating the objects or substrates with the coating compositions of the invention. The invention further relates to the use of the compositions of the invention as adhesives.Type: ApplicationFiled: May 7, 2021Publication date: June 8, 2023Inventors: Li-Sheng WANG, Brian EDGECOMBE, Wenliang Patrick YANG, Mei Chia LIAO
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Publication number: 20220089481Abstract: This invention relates to compositions and methods for improving the adhesion of resin compositions to substrate materials, pre-treating substrate materials to improve the adhesion of resin compositions to the substrate materials, and/or controlling gel formation of resin compositions. More particularly, the invention relates to compositions and methods for improving the adhesion of ring opening metathesis polymerization (ROMP) compositions to substrate materials using adhesion promoters containing isocyanate groups in a resin composition. The invention also relates to methods for improving the adhesion of resin compositions to substrate materials by pre-treating substrate materials with adhesion promoters containing isocyanate groups. The invention further relates to a method of providing a gel-modified ROMP composition, in which a hydroperoxide is added to a ROMP polymerizable resin composition in order to control gel formation of the polymerizing resin.Type: ApplicationFiled: July 1, 2021Publication date: March 24, 2022Applicant: MATERIA, INC.Inventors: Li-Sheng Wang, Anthony R. Stephen, Paul W. Boothe, Tessa Schulze, Michael A. Giardello, Mark S. Trimmer, Christopher J. Cruce, Farshad J. Motamedi, Brian Edgecombe
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Patent number: 11261206Abstract: This invention relates generally to olefin metathesis catalyst compounds, to the preparation of such compounds, compositions comprising such compounds, methods of using such compounds, articles of manufacture comprising such compounds, and the use of such compounds in the metathesis of olefins and olefin compounds. The invention has utility in the fields of catalysts, organic synthesis, polymer chemistry, and industrial and fine chemicals industry.Type: GrantFiled: August 17, 2017Date of Patent: March 1, 2022Inventors: Li-sheng Wang, Mark S. Trimmer
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Publication number: 20210155648Abstract: This invention relates generally to olefin metathesis catalyst compounds, to the preparation of such compounds, compositions comprising such compounds, methods of using such compounds, articles of manufacture comprising such compounds, and the use of such compounds in the metathesis of olefins and olefin compounds. The invention has utility in the fields of catalysts, organic synthesis, polymer chemistry, and industrial and fine chemicals industry.Type: ApplicationFiled: August 17, 2017Publication date: May 27, 2021Inventors: Li-sheng WANG, Mark S. TRIMMER
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Publication number: 20200115277Abstract: This invention relates to compositions and methods for improving the adhesion of resin compositions to substrate materials, pre-treating substrate materials to improve the adhesion of resin compositions to the substrate materials, and/or controlling gel formation of resin compositions. More particularly, the invention relates to compositions and methods for improving the adhesion of ring opening metathesis polymerization (ROMP) compositions to substrate materials using adhesion promoters containing isocyanate groups in a resin composition. The invention also relates to methods for improving the adhesion of resin compositions to substrate materials by pre-treating substrate materials with adhesion promoters containing isocyanate groups. The invention further relates to a method of providing a gel-modified ROMP composition, in which a hydroperoxide is added to a ROMP polymerizable resin composition in order to control gel formation of the polymerizing resin.Type: ApplicationFiled: September 16, 2019Publication date: April 16, 2020Applicant: MATERIA, INC.Inventors: Li-Sheng Wang, Anthony R. Stephen, Paul W. Boothe, Tessa Schulze, Michael A. Giardello, Mark S. Trimmer, Christopher J. Cruce, Farshad J. Motamedi, Brian Edgecombe
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Patent number: 10501488Abstract: This invention relates generally to metal carbene olefin metathesis catalyst compounds, to the preparation of such compounds, compositions comprising such compounds, methods of using such compounds, articles of manufacture comprising such compounds, and the use of such compounds in the metathesis of olefins and olefin compounds. The invention has utility in the fields of catalysts, organic synthesis, polymer chemistry, and industrial and fine chemicals industry.Type: GrantFiled: September 23, 2016Date of Patent: December 10, 2019Assignee: Umicore AG & Co. KGInventors: Michael A. Giardello, Mark S. Trimmer, Li-Sheng Wang, Noah H. Duffy, Adam M. Johns, Nicholas J. Rodak, Bryan A. Fiamengo, John H. Phillips
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Patent number: 10457597Abstract: This invention relates to compositions and methods for improving the adhesion of resin compositions to substrate materials, pre-treating substrate materials to improve the adhesion of resin compositions to the substrate materials, and/or controlling gel formation of resin compositions. More particularly, the invention relates to compositions and methods for improving the adhesion of ring opening metathesis polymerization (ROMP) compositions to substrate materials using adhesion promoters containing isocyariate groups in a resin composition. The invention also relates to methods for improving the adhesion of resin compositions to substrate materials by pre-treating substrate materials with adhesion promoters containing isocyanate groups. The invention further relates to a method of providing a gel-modified ROMP composition, in which a hydroperoxide is added to a ROMP polymerizable resin composition in order to control gel formation of the polymerizing resin.Type: GrantFiled: June 17, 2012Date of Patent: October 29, 2019Assignee: Materia, Inc.Inventors: Li-Sheng Wang, Anthony R. Stephen, Paul W. Boothe, Tessa Schulze, Michael A. Giardello, Mark S. Trimmer, Christopher J. Cruce, Farshad J. Motamedi, Brian Edgecombe
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Publication number: 20190136214Abstract: Methods of preparing protein films in the presence of organofluorine compounds are provided that can produce protein films that retain the solution phase characteristics of the proteins. The protein films can be coatings for medical devices.Type: ApplicationFiled: November 5, 2018Publication date: May 9, 2019Inventors: Li-Sheng Wang, Sanjana Gopalakrishnan, Vincent M. Rotello
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Publication number: 20180265532Abstract: This invention relates generally to metal carbene olefin metathesis catalyst compounds, to the preparation of such compounds, compositions comprising such compounds, methods of using such compounds, articles of manufacture comprising such compounds, and the use of such compounds in the metathesis of olefins and olefin compounds. The invention has utility in the fields of catalysts, organic synthesis, polymer chemistry, and industrial and fine chemicals industry.Type: ApplicationFiled: September 23, 2016Publication date: September 20, 2018Inventors: Michael A. GIARDELLO, Mark S. TRIMMER, Li-Sheng WANG, Noah H. DUFFY, Adam M. JOHNS, Nicholas J. RODAK, Bryan A. FIAMENGO, John H. PHILLIPS
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Patent number: 10073340Abstract: Various embodiments disclosed relate to protein films and methods of making the same. In various embodiments, the present invention provides a method of making a protein film including placing on a substrate a protein solution, to form a precursor protein film. The protein solution includes one or more proteins. The method includes compressing the precursor protein film to form a protein film.Type: GrantFiled: October 2, 2015Date of Patent: September 11, 2018Assignee: University of MassachusettsInventors: Vincent M Rotello, Bradley Duncan, Li-Sheng Wang, Eunhee Jeoung, Chandramouleeswaran Subramani, Krishnendu Saha
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Patent number: 9796889Abstract: The invention discloses an adhesion agent composition comprising at least one C3-C200 olefin compound having at least one metathesis active double bond, wherein the olefin is substituted or unsubstituted; and at least one compatibilizing functionality for interacting with a substrate surface. The substrate surface can be any surface, for example, silicate glasses, silicate minerals, metals, metal alloys, ceramics, natural stones, plastics, carbon, silicon, and semiconductors. The invention also discloses articles of manufacture utilizing these adhesion agents as well as methods for adhering a polyolefin to a substrate surface.Type: GrantFiled: October 29, 2015Date of Patent: October 24, 2017Assignee: MATERIA, INC.Inventors: Michael A. Giardello, Christopher M. Haar, Brian Edgecombe, Anthony R. Stephen, Li-Sheng Wang, Diana Stoianova
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Publication number: 20160186022Abstract: The invention discloses an adhesion agent composition comprising at least one C3-C200 olefin compound having at least one metathesis active double bond, wherein the olefin is substituted or unsubstituted; and at least one compatibilizing functionality for interacting with a substrate surface. The substrate surface can be any surface, for example, silicate glasses, silicate minerals, metals, metal alloys, ceramics, natural stones, plastics, carbon, silicon, and semiconductors. The invention also discloses articles of manufacture utilizing these adhesion agents as well as methods for adhering a polyolefin to a substrate surface.Type: ApplicationFiled: October 29, 2015Publication date: June 30, 2016Inventors: Michael A. GIARDELLO, Christopher M. HAAR, Brian EDGECOMBE, Anthony R. STEPHEN, Li-Sheng WANG, Diana STOIANOVA
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Publication number: 20160096935Abstract: Various embodiments disclosed relate to protein films and methods of making the same. In various embodiments, the present invention provides a method of making a protein film including placing on a substrate a protein solution, to form a precursor protein film. The protein solution includes one or more proteins. The method includes compressing the precursor protein film to form a protein film.Type: ApplicationFiled: October 2, 2015Publication date: April 7, 2016Inventors: Vincent M. Rotello, Bradley Duncan, Li-Sheng Wang, Eunhee Jeoung, Chandramouleeswaran Subramani, Krishnendu Saha
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Publication number: 20140329017Abstract: This invention relates to compositions and methods for improving the adhesion of resin compositions to substrate materials, pre-treating substrate materials to improve the adhesion of resin compositions to the substrate materials, and/or controlling gel formation of resin compositions. More particularly, the invention relates to compositions and methods for improving the adhesion of ring opening metathesis polymerization (ROMP) compositions to substrate materials using adhesion promoters containing isocyariate groups in a resin composition. The invention also relates to methods for improving the adhesion of resin compositions to substrate materials by pre-treating substrate materials with adhesion promoters containing isocyanate groups. The invention further relates to a method of providing a gel-modified ROMP composition, in which a hydroperoxide is added to a ROMP polymerizable resin composition in order to control gel formation of the polymerizing resin.Type: ApplicationFiled: June 17, 2012Publication date: November 6, 2014Applicant: MATERIA, INC.Inventors: Li-Sheng Wang, Anthony R. Stephen, Paul W. Booth, Tessa Schulze, Michael A. Giardello, Mark S. Trimmer, Christopher J. Cruce, Farshad J. Motamedi, Brian Edgecombe
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Patent number: 8758811Abstract: The present invention provides a multilayer vehicle, including a mesoporous silica core and a lipid bilayer coating thereon. Hydrophobic molecules are formed between the silica core and lipid layer. Additionally, methods and uses of the multilayer vehicle are also provided.Type: GrantFiled: November 22, 2010Date of Patent: June 24, 2014Assignee: National Tsing Hua UniversityInventors: Ja-An Ho, Li-Sheng Wang, Chia-Min Yang, Li-Chen Wu
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Patent number: 8324334Abstract: Olefin metathesis polymerization reactions are disclosed, and more particularly ring-opening metathesis polymerization of cyclic olefins with olefinic compounds, such as are derived from seed oils and the like, to form telechelic polymers. In one aspect, a method is provided for carrying out a catalytic ring-opening metathesis polymerization reaction, comprising contacting at least one olefinic compound with at least one cyclic olefin, in the presence of a ruthenium alkylidene olefin metathesis catalyst under conditions effective to allow ring-opening metathesis polymerization of the cyclic olefin, whereby the cyclic olefin polymer formed is terminated with the olefinic compound. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial chemistry.Type: GrantFiled: August 21, 2009Date of Patent: December 4, 2012Assignee: Materia, Inc.Inventors: Simon C. Jones, Farshad J. Motamedi, Li-Sheng Wang, Brian Edgecombe, Michael A. Giardello
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Patent number: 8242235Abstract: Objects of the present invention are to provide a purification process that enables Pd and P to be removed effectively, and to provide an electroluminescent material and an electroluminescent device obtained by employing the process. The present invention relates to a process for purifying an electroluminescent material, the process involving treating, with an oxidizing agent and then with a column, an electroluminescent material that contains Pd and/or P as impurities so as to remove the Pd and/or P.Type: GrantFiled: June 4, 2004Date of Patent: August 14, 2012Assignees: Hitachi Chemical Co., Ltd., Maxdem IncorporatedInventors: Yoshihiro Tsuda, Yoshii Morishita, Satoyuki Nomura, Seiji Tai, Yousuke Hoshi, Shigeaki Funyuu, Matthew L. Marrocco, III, Farshad J. Motamedi, Li-Sheng Wang