Patents by Inventor Steven C. H. Hung
Steven C. H. Hung 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: 11658218Abstract: Methods of forming and processing semiconductor devices are described. Certain embodiments related to electronic devices which comprise a dipole region having an interlayer dielectric, a high-? dielectric material, and a dipole layer. The dipole layer comprises one or more of titanium aluminum nitride (TiAlN), titanium tantalum nitride (TiTaN), titanium oxide (TiO), tantalum oxide (TaO), and titanium aluminum carbide (TiAlC).Type: GrantFiled: February 10, 2022Date of Patent: May 23, 2023Assignee: Applied Materials, Inc.Inventors: Yongjing Lin, Karla M Bernal Ramos, Shih Chung Chen, Yixiong Yang, Lin Dong, Steven C. H. Hung, Srinivas Gandikota
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Publication number: 20230010499Abstract: Exemplary integrated cluster tools may include a factory interface including a first transfer robot. The tools may include a wet clean system coupled with the factory interface at a first side of the wet clean system. The tools may include a load lock chamber coupled with the wet clean system at a second side of the wet clean system opposite the first side of the wet clean system. The tools may include a first transfer chamber coupled with the load lock chamber. The first transfer chamber may include a second transfer robot. The tools may include a thermal treatment chamber coupled with the first transfer chamber. The tools may include a second transfer chamber coupled with the first transfer chamber. The second transfer chamber may include a third transfer robot. The tools may include a metal deposition chamber coupled with the second transfer chamber.Type: ApplicationFiled: July 7, 2022Publication date: January 12, 2023Applicant: Applied Materials, Inc.Inventors: Brian K. Kirkpatrick, Steven C. H. Hung, Malcolm J. Bevan
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Patent number: 11552177Abstract: Metal gate stacks and integrated methods of forming metal gate stacks are disclosed. Some embodiments comprise NbN as a PMOS work function material at a thickness in a range of greater than or equal to 5 ? to less than or equal to 50 ?. The PMOS work function material comprising NbN has an effective work function of greater than or equal to 4.75 eV. Some embodiments comprise HfO2 as a high-? metal oxide layer. Some embodiments provide improved PMOS bandedge performance evidenced by improved flatband voltage. Some embodiments exclude transition metal niobium nitride materials as work function materials.Type: GrantFiled: September 4, 2020Date of Patent: January 10, 2023Assignee: Applied Materials, Inc.Inventors: Srinivas Gandikota, Steven C. H. Hung, Mandyam Sriram, Jacqueline S. Wrench, Yixiong Yang, Yong Yang
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Publication number: 20220328308Abstract: A method of forming a high-? dielectric cap layer on a semiconductor structure formed on a substrate includes depositing the high-? dielectric cap layer on the semiconductor structure, depositing a sacrificial silicon cap layer on the high-? dielectric cap layer, performing a post cap anneal process to harden and densify the as-deposited high-? dielectric cap layer, and removing the sacrificial silicon cap layer.Type: ApplicationFiled: June 17, 2022Publication date: October 13, 2022Inventors: Srinivas GANDIKOTA, Yixiong YANG, Jacqueline Samantha WRENCH, Yong YANG, Steven C. H. HUNG
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Patent number: 11456178Abstract: Processing methods may be performed to produce semiconductor structures. The methods may include forming a silicon layer over a semiconductor substrate. The forming may include forming a silicon layer incorporating a dopant. The methods may include oxidizing a portion of the silicon layer while maintaining a portion of the silicon layer in contact with the semiconductor substrate. The oxidizing may drive a portion of the dopant through the silicon layer and into the semiconductor substrate.Type: GrantFiled: June 15, 2021Date of Patent: September 27, 2022Assignee: Applied Materials, Inc.Inventors: Steven C. H. Hung, Benjamin Colombeau, Abhishek Dube, Sheng-Chin Kung, Patricia M. Liu, Malcolm J. Bevan, Johanes F. Swenberg
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Patent number: 11450759Abstract: Described is a method of manufacturing a gate-all-around electronic device. The method includes forming a thermal oxide layer though an enhanced in situ steam generation process in combination with atomic layer deposition of a low-? layer. The thin thermal oxide layer passivates the interface between the silicon layer and the dielectric layer of the GAA. A passivation process after the deposition of the low-? layer reduces the bulk trap and enhances the breakdown performance of the GAA transistor.Type: GrantFiled: September 30, 2020Date of Patent: September 20, 2022Assignee: Applied Materials, Inc.Inventors: Steven C. H. Hung, Benjamin Colombeau, Andy Lo, Byeong Chan Lee, Johanes F. Swenberg, Theresa Kramer Guarini, Malcolm J. Bevan
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Publication number: 20220262629Abstract: A method of forming a high-? dielectric cap layer on a semiconductor structure formed on a substrate includes depositing the high-? dielectric cap layer on the semiconductor structure, depositing a sacrificial silicon cap layer on the high-? dielectric cap layer, performing a post cap anneal process to harden and densify the as-deposited high-? dielectric cap layer, and removing the sacrificial silicon cap layer.Type: ApplicationFiled: April 26, 2022Publication date: August 18, 2022Inventors: Srinivas GANDIKOTA, Yixiong YANG, Jacqueline Samantha WRENCH, Yong YANG, Steven C. H. HUNG
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Patent number: 11417517Abstract: A method of forming a high-K dielectric cap layer on a semiconductor structure formed on a substrate includes depositing the high-K dielectric cap layer on the semiconductor structure, depositing a sacrificial silicon cap layer on the high-K dielectric cap layer, performing a post cap anneal process to harden and densify the as-deposited high-K dielectric cap layer, and removing the sacrificial silicon cap layer.Type: GrantFiled: November 18, 2020Date of Patent: August 16, 2022Assignee: APPLIED MATERIALS, INC.Inventors: Srinivas Gandikota, Yixiong Yang, Jacqueline Samantha Wrench, Yong Yang, Steven C. H. Hung
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Publication number: 20220238680Abstract: A method of forming a gate stack structure includes forming a dipole metal layer on a high-? gate dielectric layer on a semiconductor structure formed on a substrate, annealing the dipole metal layer, and removing the dipole metal layer. The dipole metal layer comprises dopants in the high-? gate dielectric layer.Type: ApplicationFiled: November 17, 2021Publication date: July 28, 2022Inventors: Steven C. H. HUNG, Benjamin COLOMBEAU, Myungsun KIM, Srinivas GANDIKOTA, Yixiong YANG, Jacqueline Samantha WRENCH, Yong YANG
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Patent number: 11289579Abstract: Methods of forming and processing semiconductor devices are described. Certain embodiments related to electronic devices which comprise a dipole region having an interlayer dielectric, a high-? dielectric material, and a dipole layer. The dipole layer comprises one or more of titanium aluminum nitride (TiAlN), titanium tantalum nitride (TiTaN), titanium oxide (TiO), tantalum oxide (TaO), and titanium aluminum carbide (TiAlC).Type: GrantFiled: September 28, 2020Date of Patent: March 29, 2022Assignee: Applied Materials, Inc.Inventors: Yongjing Lin, Karla M Bernal Ramos, Shih Chung Chen, Yixiong Yang, Lin Dong, Steven C. H. Hung, Srinivas Gandikota
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Publication number: 20220077298Abstract: Metal gate stacks and integrated methods of forming metal gate stacks are disclosed. Some embodiments comprise NbN as a PMOS work function material at a thickness in a range of greater than or equal to 5 ? to less than or equal to 50 ?. The PMOS work function material comprising NbN has an effective work function of greater than or equal to 4.75 eV. Some embodiments comprise HfO2 as a high-? metal oxide layer. Some embodiments provide improved PMOS bandedge performance evidenced by improved flatband voltage. Some embodiments exclude transition metal niobium nitride materials as work function materials.Type: ApplicationFiled: September 4, 2020Publication date: March 10, 2022Applicant: Applied Material, Inc.Inventors: SRINIVAS GANDIKOTA, Steven C. H. Hung, Mandyam Sriram, Jacqueline S. Wrench, Yixiong Yang, Yong Yang
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Patent number: 11245022Abstract: Methods of forming and processing semiconductor devices are described. Certain embodiments related to electronic devices which comprise a dipole region having an interlayer dielectric, a high-? dielectric material, and a dipole layer. The dipole layer comprises one or more of titanium lanthanum nitride (TiLaN), titanium yttrium nitride (TiYN), titanium strontium nitride (TiSrN), titanium magnesium nitride (TiMgN, titanium aluminum nitride (TiAlN), titanium tantalum nitride (TiTaN), hafnium carbide (HfC), hafnium nitride (HfN), hafnium oxynitride (HfON), hafnium oxycarbide (HfOC), hafnium carbide aluminum (HfCAl), hafnium aluminum nitride (HfAlN), or hafnium carbonitride (HfCN).Type: GrantFiled: May 18, 2020Date of Patent: February 8, 2022Assignee: Applied Materials, Inc.Inventors: Yongjing Lin, Karla M. Bernal Ramos, Luping Li, Shih Chung Chen, Jacqueline S. Wrench, Yixiong Yang, Steven C. H. Hung, Srinivas Gandikota, Naomi Yoshida, Lin Dong
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Publication number: 20210398814Abstract: Processing methods may be performed to produce semiconductor structures. The methods may include forming a silicon layer over a semiconductor substrate. The forming may include forming a silicon layer incorporating a dopant. The methods may include oxidizing a portion of the silicon layer while maintaining a portion of the silicon layer in contact with the semiconductor substrate. The oxidizing may drive a portion of the dopant through the silicon layer and into the semiconductor substrate.Type: ApplicationFiled: June 15, 2021Publication date: December 23, 2021Applicant: Applied Materials, Inc.Inventors: Steven C. H. Hung, Benjamin Colombeau, Abhishek Dube, Sheng-Chin Kung, Patricia M. Liu, Malcolm J. Bevan, Johanes F. Swenberg
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Patent number: 11189479Abstract: A method of forming an electronic device is disclosed. The method comprises forming a barrier layer on a silicon layer, and depositing a silicon oxide layer on the barrier layer. The formation of the barrier layer on the silicon layer minimizes parasitic oxidation of the underlying silicon layer and minimizes defects in the silicon layer.Type: GrantFiled: May 4, 2020Date of Patent: November 30, 2021Assignee: Applied Materials, Inc.Inventors: Benjamin Colombeau, Johanes F. Swenberg, Steven C. H. Hung
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Patent number: 11171047Abstract: Methods of forming semiconductor device with fluorine-incorporated metal nitride films are described. A substrate surface is exposed to a metal fluoride precursor to form a metal-fluorine species on the substrate surface. The substrate surface is exposed to a nitriding agent to react with the metal-fluorine species to form a fluorine-incorporated metal nitride film.Type: GrantFiled: June 28, 2020Date of Patent: November 9, 2021Assignee: APPLIED MATERIALS, INC.Inventors: Yixiong Yang, Srinivas Gandikota, Steven C. H. Hung, Jacqueline S. Wrench, Yongjing Lin, Susmit Singha Roy, Wei V. Tang, Shih Chung Chen
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Publication number: 20210111020Abstract: A method of forming a high-K dielectric cap layer on a semiconductor structure formed on a substrate includes depositing the high-K dielectric cap layer on the semiconductor structure, depositing a sacrificial silicon cap layer on the high-K dielectric cap layer, performing a post cap anneal process to harden and densify the as-deposited high-K dielectric cap layer, and removing the sacrificial silicon cap layer.Type: ApplicationFiled: November 18, 2020Publication date: April 15, 2021Inventors: Srinivas GANDIKOTA, Yixiong YANG, Jacqueline Samantha WRENCH, Yong YANG, Steven C. H. HUNG
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Publication number: 20210057215Abstract: A method of forming a semiconductor structure includes pre-cleaning a surface of a substrate, forming an interfacial layer on the pre-cleaned surface of the substrate, depositing a high-? dielectric layer on the interfacial layer, performing a plasma nitridation process to insert nitrogen atoms in the deposited high-? dielectric layer, and performing a post-nitridation anneal process to passivate chemical bonds in the plasma nitridated high-? dielectric layer.Type: ApplicationFiled: November 6, 2020Publication date: February 25, 2021Inventor: Steven C. H. HUNG
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Patent number: 10510545Abstract: Embodiments described herein generally relate to enable the formation of a metal gate structure with a reduced effective oxide thickness over a similar structure formed via conventional methods. A plasma hydrogenation process followed by a plasma nitridization process, or a single-step plasma hydrogenation and nitridization process, is performed on a metal nitride layer in a film stack, thereby, according to some embodiments, removing oxygen atoms disposed within layers of the film stack and, in some embodiments, adding nitrogen atoms to the layers of the film stack. As a result, an effective oxide thickness of the metal gate structure is reduced with little or no accompanying flatband voltage shift.Type: GrantFiled: January 9, 2019Date of Patent: December 17, 2019Assignee: APPLIED MATERIALS, INC.Inventors: Houda Graoui, Johanes S. Swenberg, Wei Liu, Steven C. H. Hung
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Patent number: 10431466Abstract: Embodiments described herein generally relate to enable the formation of a metal gate structure with a reduced effective oxide thickness over a similar structure formed via conventional methods. A plasma hydrogenation process followed by a plasma nitridization process is performed on a metal nitride layer in a film stack, thereby removing oxygen atoms disposed within layers of the film stack and, in some embodiments eliminating an oxygen-containing interfacial layer disposed within the film stack. As a result, an effective oxide thickness of the metal gate structure is reduced with little or no accompanying flatband voltage shift. Further, the metal gate structure operates with an increased leakage current that is as little as one quarter the increase in leakage current associated with a similar metal gate structure formed via conventional techniques.Type: GrantFiled: October 12, 2018Date of Patent: October 1, 2019Assignee: APPLIED MATERIALS, INC.Inventors: Johanes S. Swenberg, Wei Liu, Houda Graoui, Steven C. H. Hung
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Publication number: 20190287805Abstract: A sequential plasma process is employed to enable the modification of the work function of a p-type metal layer in a metal gate structure. The sequential plasma process includes a plasma hydrogenation and a plasma process that includes electronegative species. The sequential plasma process is performed on a p-type metal layer in a film stack, thereby replacing suboxides and/or other non-stoichiometrically combined electronegative atoms disposed on or within layers of the film stack with stoichiometrically combined electronegative atoms, such as O atoms. As a result, the work function of the p-type metal layer can be modified without changing a thickness of the p-type metal layer.Type: ApplicationFiled: May 24, 2019Publication date: September 19, 2019Inventors: Steven C. H. HUNG, Johanes S. SWENBERG, Wei LIU, Houda GRAOUI