Patents by Inventor Sean S. Kang
Sean S. Kang 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: 20240145246Abstract: Embodiments of the present technology include semiconductor processing methods. The methods may include providing a silicon-containing precursor and a dopant precursor to a processing region of a semiconductor processing chamber. A substrate may be disposed within the semiconductor processing chamber. A silicon-containing material may be formed on the substrate. The methods may include contacting the silicon-containing material with the silicon-containing precursor and the dopant precursor. The methods may include forming a doped silicon-containing material on the silicon-containing material. The methods may include oxidizing the substrate. The oxidizing may form an oxidized doped silicon-containing material. The methods may include etching the oxidized doped silicon-containing material.Type: ApplicationFiled: October 26, 2022Publication date: May 2, 2024Applicant: Applied Materials, Inc.Inventors: Yi Yang, In Soo Jung, Sean S. Kang, Srinivas D. Nemani, Papo Chen, Ellie Y. Yieh
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Patent number: 11756803Abstract: A high-pressure processing system for processing a layer on a substrate includes a first chamber, a support to hold the substrate in the first chamber, a second chamber adjacent the first chamber, a foreline to remove gas from the second chamber, a vacuum processing system configured to lower a pressure within the second chamber to near vacuum, a valve assembly between the first chamber and the second chamber to isolate the pressure within the first chamber from the pressure within the second chamber, a gas delivery system configured to increase the pressure within the first chamber to at least 10 atmospheres while the first chamber is isolated from the second chamber, an exhaust system comprising an exhaust line to remove gas from the first chamber, and a common housing surrounding both the first gas delivery module and the second gas delivery module.Type: GrantFiled: November 29, 2022Date of Patent: September 12, 2023Assignee: Applied Materials, Inc.Inventors: Qiwei Liang, Srinivas D. Nemani, Sean S. Kang, Adib Khan, Ellie Y. Yieh
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Publication number: 20230093374Abstract: A high-pressure processing system for processing a layer on a substrate includes a first chamber, a support to hold the substrate in the first chamber, a second chamber adjacent the first chamber, a foreline to remove gas from the second chamber, a vacuum processing system configured to lower a pressure within the second chamber to near vacuum, a valve assembly between the first chamber and the second chamber to isolate the pressure within the first chamber from the pressure within the second chamber, a gas delivery system configured to increase the pressure within the first chamber to at least 10 atmospheres while the first chamber is isolated from the second chamber, an exhaust system comprising an exhaust line to remove gas from the first chamber, and a common housing surrounding both the first gas delivery module and the second gas delivery module.Type: ApplicationFiled: November 29, 2022Publication date: March 23, 2023Inventors: Qiwei LIANG, Srinivas D. NEMANI, Sean S. KANG, Adib KHAN, Ellie Y. YIEH
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Patent number: 11527421Abstract: A high-pressure processing system for processing a layer on a substrate includes a first chamber, a support to hold the substrate in the first chamber, a second chamber adjacent the first chamber, a foreline to remove gas from the second chamber, a vacuum processing system configured to lower a pressure within the second chamber to near vacuum, a valve assembly between the first chamber and the second chamber to isolate the pressure within the first chamber from the pressure within the second chamber, a gas delivery system configured to increase the pressure within the first chamber to at least 10 atmospheres while the first chamber is isolated from the second chamber, an exhaust system comprising an exhaust line to remove gas from the first chamber, and a common housing surrounding both the first gas delivery module and the second gas delivery module.Type: GrantFiled: July 20, 2020Date of Patent: December 13, 2022Assignee: Micromaterials, LLCInventors: Qiwei Liang, Srinivas D. Nemani, Sean S. Kang, Adib Khan, Ellie Y. Yieh
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Publication number: 20220344282Abstract: Provided are methods of reducing the stress of a semiconductor wafer. A wafer map of a free-standing wafer is created using metrology tools. The wafer map is then converted into a power spectral density (PSD) using a spatial frequency scale. The fundamental component of bow is then compensated with a uniform film, e.g., silicon nitride (SiN), deposited on the back side of the wafer.Type: ApplicationFiled: April 27, 2022Publication date: October 27, 2022Applicant: Applied Materials, Inc.Inventors: Pradeep K. Subrahmanyan, Sean S. Kang, Sony Varghese
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Patent number: 11373877Abstract: Methods and apparatus for producing high aspect ratio features in a substrate using reactive ion etching. In some embodiments, a method comprises flowing acetylene gas into a process chamber to produce a diamond like carbon deposition on a pattern mask or on at least one layer of oxide or nitride on the substrate, flowing a gas mixture of a first gas of a hydrofluorocarbon-based gas and a second gas of a fluorocarbon-based gas into the process chamber, forming a plasma from the gas mixture using an RF power source and at least one RF bias power source, performing an anisotropic etch of the at least one layer of oxide or nitride on the substrate using the pattern mask, and evacuating the process chamber while interrupting the RF power source to stop plasma formation.Type: GrantFiled: April 13, 2020Date of Patent: June 28, 2022Assignee: APPLIED MATERIALS, INC.Inventors: Daisuke Shimizu, Taiki Hatakeyama, Shinichi Koseki, Sean S. Kang, Jairaj Joseph Payyapilly, Hikaru Watanabe
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Patent number: 11164723Abstract: Methods and apparatus for producing high aspect ratio features in a substrate using reactive ion etching (RIE). In some embodiments, a method comprises flowing a gas mixture of C3H2F4 and a companion gas into a process chamber, forming a plasma from the gas mixture using an RF power source connected to an upper electrode above the substrate and at least one RF bias power source connected to a lower electrode under the substrate, performing an anisotropic etch, via the plasma, of at least one layer of oxide or nitride on the substrate using a pattern mask, reducing power of the at least one RF bias power source to produce deposition of a passivation layer on the at least one layer of oxide or nitride on the substrate, and evacuating the process chamber while interrupting the RF power source to stop plasma formation.Type: GrantFiled: January 18, 2021Date of Patent: November 2, 2021Assignee: APPLIED MATERIALS, INC.Inventors: Daisuke Shimizu, Taiki Hatakeyama, Sean S. Kang, Katsumasa Kawasaki, Chunlei Zhang
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Publication number: 20210320012Abstract: Methods and apparatus for producing high aspect ratio features in a substrate using reactive ion etching. In some embodiments, a method comprises flowing acetylene gas into a process chamber to produce a diamond like carbon deposition on a pattern mask or on at least one layer of oxide or nitride on the substrate, flowing a gas mixture of a first gas of a hydrofluorocarbon-based gas and a second gas of a fluorocarbon-based gas into the process chamber, forming a plasma from the gas mixture using an RF power source and at least one RF bias power source, performing an anisotropic etch of the at least one layer of oxide or nitride on the substrate using the pattern mask, and evacuating the process chamber while interrupting the RF power source to stop plasma formation.Type: ApplicationFiled: April 13, 2020Publication date: October 14, 2021Inventors: Daisuke SHIMIZU, Taiki HATAKEYAMA, Shinichi KOSEKI, Sean S. KANG, Jairaj Joseph PAYYAPILLY, Hikaru WATANABE
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Publication number: 20210142987Abstract: Methods and apparatus for producing high aspect ratio features in a substrate using reactive ion etching (RIE). In some embodiments, a method comprises flowing a gas mixture of C3H2F4 and a companion gas into a process chamber, forming a plasma from the gas mixture using an RF power source connected to an upper electrode above the substrate and at least one RF bias power source connected to a lower electrode under the substrate, performing an anisotropic etch, via the plasma, of at least one layer of oxide or nitride on the substrate using a pattern mask, reducing power of the at least one RF bias power source to produce deposition of a passivation layer on the at least one layer of oxide or nitride on the substrate, and evacuating the process chamber while interrupting the RF power source to stop plasma formation.Type: ApplicationFiled: January 18, 2021Publication date: May 13, 2021Inventors: Daisuke SHIMIZU, Taiki HATAKEYAMA, Sean S. KANG, Katsumasa KAWASAKI, Chunlei ZHANG
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Patent number: 10930471Abstract: Methods and apparatus for producing high aspect ratio features in a substrate using reactive ion etching (RIE). In some embodiments, a method comprises flowing a gas mixture of C3H2F4 and a companion gas into a process chamber, forming a plasma from the gas mixture using an RF power source connected to an upper electrode above the substrate and at least one RF bias power source connected to a lower electrode under the substrate, performing an anisotropic etch, via the plasma, of at least one layer of oxide or nitride on the substrate using a pattern mask, reducing power of the at least one RF bias power source to produce deposition of a passivation layer on the at least one layer of oxide or nitride on the substrate, and evacuating the process chamber while interrupting the RF power source to stop plasma formation.Type: GrantFiled: January 30, 2020Date of Patent: February 23, 2021Assignee: APPLIED MATERIALS, INC.Inventors: Daisuke Shimizu, Taiki Hatakeyama, Sean S Kang, Katsumasa Kawasaki, Chunlei Zhang
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Publication number: 20200350183Abstract: A high-pressure processing system for processing a layer on a substrate includes a first chamber, a support to hold the substrate in the first chamber, a second chamber adjacent the first chamber, a foreline to remove gas from the second chamber, a vacuum processing system configured to lower a pressure within the second chamber to near vacuum, a valve assembly between the first chamber and the second chamber to isolate the pressure within the first chamber from the pressure within the second chamber, a gas delivery system configured to increase the pressure within the first chamber to at least 10 atmospheres while the first chamber is isolated from the second chamber, an exhaust system comprising an exhaust line to remove gas from the first chamber, and a common housing surrounding both the first gas delivery module and the second gas delivery module.Type: ApplicationFiled: July 20, 2020Publication date: November 5, 2020Inventors: Qiwei LIANG, Srinivas D. NEMANI, Sean S. KANG, Adib KHAN, Ellie Y. YIEH
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Publication number: 20200312680Abstract: Methods and apparatus for controlling fluid distribution to multiple fluid delivery zones in an etch chamber is provided herein. In some embodiments, the apparatus includes a first flow ratio controller and a second flow ratio controller, each having a respective inlet, a first outlet coupled to a first fluid delivery zone in a process chamber, and a second outlet coupled to a second fluid delivery zone in the process chamber, wherein the first flow ratio controller and the second flow ratio controller are configured to provide a flow ratio of a first process fluid and a second process fluid, respectively, between the first outlet and the second outlet, and a third flow ratio controller configured to provide a flow rate of a third process fluid to at least one of the first fluid delivery zone, the second fluid delivery zone, or a third fluid delivery zone.Type: ApplicationFiled: March 29, 2019Publication date: October 1, 2020Inventors: DAISUKE SHIMIZU, Taiki Hatakeyama, Sean S. Kang, Chunlei Zhang, Sergio F. Shoji
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Publication number: 20200294771Abstract: Methods and apparatus for producing high aspect ratio features in a substrate using reactive ion etching (RIE). In some embodiments, a method comprises flowing a gas mixture of C3H2F4 and a companion gas into a process chamber, forming a plasma from the gas mixture using an RF power source connected to an upper electrode above the substrate and at least one RF bias power source connected to a lower electrode under the substrate, performing an anisotropic etch, via the plasma, of at least one layer of oxide or nitride on the substrate using a pattern mask, reducing power of the at least one RF bias power source to produce deposition of a passivation layer on the at least one layer of oxide or nitride on the substrate, and evacuating the process chamber while interrupting the RF power source to stop plasma formation.Type: ApplicationFiled: January 30, 2020Publication date: September 17, 2020Inventors: DAISUKE SHIMIZU, TAIKI HATAKEYAMA, SEAN S. KANG, KATSUMASA KAWASAKI, CHUNLEI ZHANG
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Patent number: 10720341Abstract: A high-pressure processing system for processing a layer on a substrate includes a first chamber, a support to hold the substrate in the first chamber, a second chamber adjacent the first chamber, a foreline to remove gas from the second chamber, a vacuum processing system configured to lower a pressure within the second chamber to near vacuum, a valve assembly between the first chamber and the second chamber to isolate the pressure within the first chamber from the pressure within the second chamber, a gas delivery system configured to increase the pressure within the first chamber to at least 10 atmospheres while the first chamber is isolated from the second chamber, an exhaust system comprising an exhaust line to remove gas from the first chamber, and a common housing surrounding both the first gas delivery module and the second gas delivery module.Type: GrantFiled: November 7, 2018Date of Patent: July 21, 2020Assignee: Micromaterials, LLCInventors: Qiwei Liang, Srinivas D. Nemani, Sean S. Kang, Adib Khan, Ellie Y. Yieh
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Patent number: 10636704Abstract: Aspects of the disclosure include methods of treating a substrate to remove one or more of voids, seams, and grain boundaries from interconnects formed on the substrate. The method includes heating the substrate in an environment pressurized at supra-atmospheric pressure. In one example, the substrate may be heated in a hydrogen-containing atmosphere.Type: GrantFiled: August 13, 2018Date of Patent: April 28, 2020Assignee: APPLIED MATERIALS, INC.Inventors: Bencherki Mebarki, Sean S. Kang, Keith Tatseun Wong, He Ren, Mehul B. Naik, Ellie Y. Yieh, Srinivas D. Nemani
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Patent number: 10593518Abstract: Methods and apparatus for producing high aspect ratio features in a substrate using reactive ion etching (RIE). In some embodiments, a method comprises flowing a gas mixture of C3H2F4 and a companion gas into a process chamber, forming a plasma from the gas mixture using an RF power source connected to an upper electrode above the substrate and at least one RF bias power source connected to a lower electrode under the substrate, performing an anisotropic etch, via the plasma, of at least one layer of oxide or nitride on the substrate using a pattern mask, reducing power of the at least one RF bias power source to produce deposition of a passivation layer on the at least one layer of oxide or nitride on the substrate, and evacuating the process chamber while interrupting the RF power source to stop plasma formation.Type: GrantFiled: February 8, 2019Date of Patent: March 17, 2020Assignee: APPLIED MATERIALS, INC.Inventors: Daisuke Shimizu, Taiki Hatakeyama, Sean S. Kang, Katsumasa Kawasaki, Chunlei Zhang
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Publication number: 20190362983Abstract: Methods and apparatuses for etching oxide-nitride stacks to form features that include high aspect ratio features are discussed herein. The methods include providing an ionizable gas mixture to a processing chamber of an etch reactor. The ionizable gas mixture includes C3H2F4 and a companion gas such a fluorocarbon. The ionizable gas mixture may be introduced to the chamber along with a carrier gas such as O2 in addition to inert gases and other process gases. A plasma is formed from the ionizable gas mixture and etches the stack such that the etch selectivity of the stack is 1:1.Type: ApplicationFiled: April 30, 2019Publication date: November 28, 2019Inventors: Daisuke SHIMIZU, Wonseok LEE, Sean S. KANG
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Publication number: 20190148178Abstract: A high-pressure processing system for processing a layer on a substrate includes a first chamber, a support to hold the substrate in the first chamber, a second chamber adjacent the first chamber, a foreline to remove gas from the second chamber, a vacuum processing system configured to lower a pressure within the second chamber to near vacuum, a valve assembly between the first chamber and the second chamber to isolate the pressure within the first chamber from the pressure within the second chamber, a gas delivery system configured to increase the pressure within the first chamber to at least 10 atmospheres while the first chamber is isolated from the second chamber, an exhaust system comprising an exhaust line to remove gas from the first chamber, and a common housing surrounding both the first gas delivery module and the second gas delivery module.Type: ApplicationFiled: November 7, 2018Publication date: May 16, 2019Inventors: Qiwei LIANG, Srinivas D. NEMANI, Sean S. KANG, Adib KHAN, Ellie Y. YIEH
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Patent number: 10269571Abstract: The present disclosure provide methods for forming nanowire structures with desired materials horizontal gate-all-around (hGAA) structures field effect transistor (FET) for semiconductor chips. In one example, a method of forming nanowire structures on a substrate includes supplying an oxygen containing gas mixture to a multi-material layer on a substrate in a processing chamber, wherein the multi-material layer includes repeating pairs of a first layer and a second layer, the first and the second layers having a first group and a second group of sidewalls respectively exposed through openings defined in the multi-material layer, maintaining a process pressure at greater than 5 bar, and selectively forming an oxidation layer on the second group of sidewalls in the second layer.Type: GrantFiled: July 12, 2017Date of Patent: April 23, 2019Assignee: Applied Materials, Inc.Inventors: Keith Tatseun Wong, Shiyu Sun, Sean S. Kang, Nam Sung Kim, Srinivas D. Nemani, Ellie Y. Yieh
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Patent number: 10224224Abstract: A high-pressure processing system for processing a substrate includes a first chamber, a pedestal positioned within the first chamber to support the substrate, a second chamber adjacent the first chamber, a vacuum processing system configured to lower a pressure within the second chamber to near vacuum, a valve assembly between the first chamber and the second chamber to isolate the pressure within the first chamber from the pressure within the second chamber, and a gas delivery system configured to introduce a processing gas into the first chamber and to increase the pressure within the first chamber to at least 10 atmospheres while the processing gas is in the first chamber and while the first chamber is isolated from the second chamber.Type: GrantFiled: December 7, 2017Date of Patent: March 5, 2019Assignee: Micromaterials, LLCInventors: Qiwei Liang, Srinivas D. Nemani, Adib Khan, Venkata Ravishankar Kasibhotla, Sultan Malik, Sean S. Kang, Keith Tatseun Wong