Patents by Inventor Nitin Khurana
Nitin Khurana 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: 20240404848Abstract: Methods and apparatus for commissioning a semiconductor processing tool include connecting a mobile facilities cart to a semiconductor processing tool; supplying facilities from the mobile facilities cart to the semiconductor processing tool; and operating the semiconductor processing tool using facilities supplied by the connected mobile facilities cart.Type: ApplicationFiled: August 30, 2023Publication date: December 5, 2024Inventors: Sam KIM, Kon Tae PARK, Yao-Hung YANG, Michael John PERRY, Michael LEVKOVITCH, Ram Chandra PALSANIYA, Nitin KHURANA, Derek MCQUARRIE
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Patent number: 11837448Abstract: Examples disclosed herein relate to a method and apparatus for cleaning and repairing a substrate support having a heater disposed therein. A method includes (a) cleaning a surface of a substrate support having a bulk layer, the substrate support is disposed in a processing environment configured to process substrates. The cleaning process includes forming a plasma at a high temperature from a cleaning gas mixture having a fluorine containing gas and oxygen. The method includes (b) removing oxygen radicals from the processing environment with a treatment plasma formed from a treatment gas mixture. The treatment gas mixture includes the fluorine containing gas. The method further includes (c) repairing an interface of the substrate support and the bulk layer with a post-treatment plasma. The post-treatment plasma is formed from a post-treatment gas mixture including a nitrogen containing gas. The high temperature is greater than or equal to about 500 degrees Celsius.Type: GrantFiled: April 27, 2021Date of Patent: December 5, 2023Assignee: Applied Materials, Inc.Inventors: Shuran Sheng, Lin Zhang, Jiyong Huang, Jang Seok Oh, Joseph C. Werner, Nitin Khurana, Ganesh Balasubramanian, Jennifer Y. Sun, Xinhai Han, Zhijun Jiang
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Publication number: 20220344135Abstract: Examples disclosed herein relate to a method and apparatus for cleaning and repairing a substrate support having a heater disposed therein. A method includes (a) cleaning a surface of a substrate support having a bulk layer, the substrate support is disposed in a processing environment configured to process substrates. The cleaning process includes forming a plasma at a high temperature from a cleaning gas mixture having a fluorine containing gas and oxygen. The method includes (b) removing oxygen radicals from the processing environment with a treatment plasma formed from a treatment gas mixture. The treatment gas mixture includes the fluorine containing gas. The method further includes (c) repairing an interface of the substrate support and the bulk layer with a post-treatment plasma. The post-treatment plasma is formed from a post-treatment gas mixture including a nitrogen containing gas. The high temperature is greater than or equal to about 500 degrees Celsius.Type: ApplicationFiled: April 27, 2021Publication date: October 27, 2022Inventors: Shuran SHENG, Lin ZHANG, Jiyong HUANG, Jang Seok OH, Joseph C. WERNER, Nitin KHURANA, Ganesh BALASUBRAMANIAN, Jennifer Y. SUN, Xinhai HAN, Zhijun JIANG
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Patent number: 10770321Abstract: Embodiments of the present disclosure provide a method, system, and computer program product for monitoring a service life of a chamber component. In one example, the method includes receiving one or more power measurements of a semiconductor processing chamber from one or more sensors positioned about the semiconductor processing chamber. The processor compares the one or more power measurements to one or more threshold values corresponding to the service life of the chamber component. The processor determines whether the one or more power measurements exceed the threshold values. If the processor determines that the one or more power measurements exceed the threshold values, the processor takes remedial measures for the service life of the chamber component.Type: GrantFiled: January 4, 2019Date of Patent: September 8, 2020Assignee: Applied Materials, Inc.Inventors: Kang-Lie Chiang, Greg A. Blackburn, Pallavi Zhang, Michael D. Armacost, Nitin Khurana
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Publication number: 20190148194Abstract: Embodiments of the present disclosure provide a method, system, and computer program product for monitoring a service life of a chamber component. In one example, the method includes receiving one or more power measurements of a semiconductor processing chamber from one or more sensors positioned about the semiconductor processing chamber. The processor compares the one or more power measurements to one or more threshold values corresponding to the service life of the chamber component. The processor determines whether the one or more power measurements exceed the threshold values. If the processor determines that the one or more power measurements exceed the threshold values, the processor takes remedial measures for the service life of the chamber component.Type: ApplicationFiled: January 4, 2019Publication date: May 16, 2019Inventors: Kang-Lie CHIANG, Greg A. BLACKBURN, Pallavi ZHANG, Michael D. ARMACOST, Nitin KHURANA
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Patent number: 10177018Abstract: Embodiments of the present disclosure provide a method, system, and computer program product for monitoring a service life of a chamber component. In one example, the method includes receiving one or more power measurements of a semiconductor processing chamber from one or more sensors positioned about the semiconductor processing chamber. The processor compares the one or more power measurements to one or more threshold values corresponding to the service life of the chamber component. The processor determines whether the one or more power measurements exceed the threshold values. If the processor determines that the one or more power measurements exceed the threshold values, the processor takes remedial measures for the service life of the chamber component.Type: GrantFiled: August 10, 2017Date of Patent: January 8, 2019Assignee: Applied Materials, Inc.Inventors: Kang-Lie Chiang, Greg A. Blackburn, Pallavi Zhang, Michael D. Armacost, Nitin Khurana
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Publication number: 20180047599Abstract: Embodiments of the present disclosure provide a method, system, and computer program product for monitoring a service life of a chamber component. In one example, the method includes receiving one or more power measurements of a semiconductor processing chamber from one or more sensors positioned about the semiconductor processing chamber. The processor compares the one or more power measurements to one or more threshold values corresponding to the service life of the chamber component. The processor determines whether the one or more power measurements exceed the threshold values. If the processor determines that the one or more power measurements exceed the threshold values, the processor takes remedial measures for the service life of the chamber component.Type: ApplicationFiled: August 10, 2017Publication date: February 15, 2018Inventors: Kang-Lie CHIANG, Greg A. BLACKBURN, Pallavi ZHANG, Michael D. ARMACOST, Nitin KHURANA
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Publication number: 20080105201Abstract: A support component comprises a support structure having a support surface with one or more quartz contact tips. In one version, the support component comprises a robot blade capable of transferring a substrate into and out of a chamber. The robot blade comprises a plate having a plurality of raised mesas, each raised mesa comprising a quartz contact tip which minimizes contact with the substrate thereby generating fewer contaminant particles during substrate transportation. Other versions of the support component include a heat exchange pedestal, lift pin assembly, and lifting fin assembly.Type: ApplicationFiled: October 29, 2007Publication date: May 8, 2008Inventors: TIMOTHY RONAN, Yuanhong Guo, Robert Decottignies, Todd W. Martin, Darryl K. Angelo, Song-Moon Suh, Nitin Khurana, Edward Ng
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Publication number: 20050252454Abstract: A lifting assembly can lift a substrate from a substrate support and transport the substrate. The lift assembly has a hoop sized to fit about a periphery of the substrate support, and a pair of arcuate fins mounted on the hoop, each arcuate fin comprising a pair of opposing ends having ledges that extend radially inward, each ledge having a raised protrusion to lift a substrate so that the substrate contacts substantially only the raised protrusion, thereby minimizing contact with the ledge, when the pair of fins is used to lift the substrate off the substrate support. The lifting assembly and other process chamber components can have a diamond-like coating having interlinked networks of (i) carbon and hydrogen, and (ii) silicon and oxygen. The diamond-like coating has a contact surface having a coefficient of friction of less than about 0.3, a hardness of at least about 8 GPa, and a metal concentration level of less than about 5×1012 atoms/cm2 of metal.Type: ApplicationFiled: February 23, 2005Publication date: November 17, 2005Inventors: Vijay Parkhe, Matthew Leopold, Timothy Ronan, Todd Martin, Edward Ng, Nitin Khurana, Song-Moon Suh, Richard Fay, Christopher Hagerty, Michael Rice, Darryl Angelo, Kurt Ahman, Matthew Tsai, Steve Sansoni
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Patent number: 6908865Abstract: Generally, a method for pre-cleaning native oxides and other contaminants from apertures on a substrate is provided. In one embodiment, a method for pre-cleaning apertures on a substrate includes disposing the substrate on a support member in a process chamber, cooling the substrate at least to a temperature of 100 degrees Celsius, and exposing the substrate to a pre-clean process. In another embodiment, a method for pre-cleaning apertures on a substrate includes cooling the substrate at least to a temperature of 100 degrees Celsius in a first chamber, transferring the substrate to a second chamber and pre-cleaning the substrate in the second chamber while maintaining a substrate temperature of 100 degrees Celsius.Type: GrantFiled: December 12, 2001Date of Patent: June 21, 2005Assignee: Applied Materials, Inc.Inventors: Martin Kranz, Srinivas Guggilla, Suraj Rengarajan, Mei Chang, Gongda Yao, Nitin Khurana, Gilbert Hausmann
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Publication number: 20030062333Abstract: Generally, a method for pre-cleaning native oxides and other contaminants from apertures on a substrate is provided. In one embodiment, a method for pre-cleaning apertures on a substrate includes disposing the substrate on a support member in a process chamber, cooling the substrate at least to a temperature of 100 degrees Celsius, and exposing the substrate to a pre-clean process. In another embodiment, a method for pre-cleaning apertures on a substrate includes cooling the substrate at least to a temperature of 100 degrees Celsius in a first chamber, transferring the substrate to a second chamber and pre-cleaning the substrate in the second chamber while maintaining a substrate temperature of 100 degrees Celsius.Type: ApplicationFiled: December 12, 2001Publication date: April 3, 2003Applicant: Applied Materials, Inc.Inventors: Martin Kranz, Srinivas Guggilla, Suraj Rengarajan, Mei Chang, Gongda Yao, Nitin Khurana, Gilbert Hausmann
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Patent number: 6436819Abstract: A method for processing a substrate comprising the formation of a metal nitride/metal stack suitable for use as a barrier/liner for sub-0.18 &mgr;m device fabrication. After a metal nitride layer is deposited upon a metal layer, the metal nitride layer is exposed to a treatment step in a nitrogen-containing environment, e.g., a plasma. The plasma treatment modifies the entire metal nitride layer and a top portion of the underlying metal layer. The plasma adds nitrogen to the top portion of the metal layer, resulting in the formation of a nitrated-metal layer. Aside from reducing the microstructure mismatch across the nitride-metal interface, the plasma treatment also densifies and reduces impurities from the deposited nitride layer. The resulting nitride/metal stack exhibits improved film properties, including enhanced adhesion and barrier characteristics. A composite nitride layer of a desired thickness can also be formed by repeating the deposition and treatment cycles of thinner component nitride layers.Type: GrantFiled: February 1, 2000Date of Patent: August 20, 2002Assignee: Applied Materials, Inc.Inventors: Zhi-Fan Zhang, David Pung, Nitin Khurana, Hong Zhang, Roderick Craig Mosely
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Patent number: 6433314Abstract: An apparatus and a method of regulating temperature of a component of a processing chamber is provided. The apparatus comprises a first thermal conductor thermally connected to the component, wherein the first thermal conductor is a resistive heating element disposed adjacent the component, a second thermal conductor thermally connected to the component, wherein the second thermal conductor is a fluid channel disposed adjacent the component, the fluid channel having a fluid inlet and a fluid outlet, a controller connected to the first and second thermal conductors, providing at least one temperature sensor connected to the component to supply temperature readings to the controller. Radiative heaters in thermal communication with the component may be used in place of a resistive heating element.Type: GrantFiled: August 4, 2000Date of Patent: August 13, 2002Assignee: Applied Materials, Inc.Inventors: Tushar Mandrekar, Anish Tolia, Nitin Khurana
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Patent number: 6395157Abstract: A method and apparatus for conditioning a surface of a ceramic body in a process chamber when the process chamber has a vacuum pump, an anode and a cathode. The conditioning method consists of pumping the process chamber down to a vacuum with the vacuum pump, introducing a gas into the chamber, energizing the anode and cathode with RF power to ignite the gas into a plasma, sputter etchinq the surface with ions from the plasma to remove contaminants therefrom. The method is accomplished either within a process chamber to condition, in situ, a ceramic chuck or within a cleaning chamber to condition any form of ceramic body or component.Type: GrantFiled: September 23, 1998Date of Patent: May 28, 2002Assignee: Applied Materials, Inc.Inventors: Nitin Khurana, Vince Burkhart, Steve Sansoni, Vijay Parkhe, Eugene Tzou
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Patent number: 6358810Abstract: The present invention provides a multi-layer semiconductor memory device comprising: a bottom electrode having a bottom layer, an upper interface layer and an intermediate tuning layer disposed between the bottom layer and the upper interface layer; a top electrode; and a high dielectric constant dielectric layer disposed between the bottom electrode and the top electrode. The present invention further provides an apparatus and a method for manufacturing high density DRAMs having capacitors having high quality HDC materials and low leakage currents. Another aspect of the present invention provides an electrode-dielectric interface that nucleates high quality HDC films. The present invention further provides an apparatus and a method for manufacturing capacitors within a high aspect ratio aperture.Type: GrantFiled: July 28, 1998Date of Patent: March 19, 2002Assignee: Applied Materials, Inc.Inventors: Charles Dornfest, John Egermeier, Nitin Khurana
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Patent number: 6350320Abstract: A gas delivery apparatus and method for directing a flow of gas to the edge of a substrate at an angle to the radial direction of the substrate is provided. The apparatus directs the gas from a gas opening, over a plurality of grooves that are angled relative to a radial line originating at a center of the gas delivery apparatus. Subsequently, the gas is flowed over a portion of the substrate to prevent reactive gases from depositing on selective portions of the substrate.Type: GrantFiled: February 22, 2000Date of Patent: February 26, 2002Assignee: Applied Materials, Inc.Inventors: Semyon Sherstinsky, Alison Gilliam, Paul Smith, Leonel A. Zuniga, Ted Yoshidome, Nitin Khurana, Rod Mosely, Umesh Madhav Kelkar, Joseph Yudovsky, Alan Popiolkowski
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Patent number: 6345642Abstract: A valve arrangement is provided that more effectively purges processing liquid from a processing liquid delivery system. With the valve arrangement only a small portion of the processing liquid path having a small wetting perimeter must be purged to affect replacement of a dysfunctional injection valve or any other component within the processing liquid delivery system. The valve arrangement comprises a first and a second isolation valve, a pump valve and purge valve configured to reduce the wetting perimeter defined by the four valves. The valve arrangement allows a dysfunctional injection valve or any other component to be replaced without health risk to humans or damage risk to a processing liquid delivery system employing the valve arrangement. During component replacement, the first and the second isolation valves are closed and the pump and the purge valves are opened so as to purge processing liquid from the isolated volume defined by the four valves.Type: GrantFiled: February 19, 1999Date of Patent: February 12, 2002Assignee: Applied Materials, Inc.Inventors: Ted G. Yoshidome, Tushar Mandrekar, Nitin Khurana, Anish Tolia
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Publication number: 20010040091Abstract: A method and apparatus for conditioning a surface of a ceramic body in a process chamber when the process chamber has a vacuum pump, an anode and a cathode. The conditioning method consists of pumping the process chamber down to a vacuum with the vacuum pump, introducing a gas into the chamber, energizing the anode and cathode with RF power to ignite the gas into a plasma, sputter etching the surface with ions from the plasma to remove contaminants therefrom. The method is accomplished either within a process chamber to condition, in situ, a ceramic chuck or within a cleaning chamber to condition any form of ceramic body or component.Type: ApplicationFiled: September 23, 1998Publication date: November 15, 2001Inventors: NITIN KHURANA, VINCE BURKHART, STEVE SANSONI, VIJAY PARKHE, EUGENE TZOU
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Patent number: 6190037Abstract: The present invention provides an apparatus and method for measuring the temperature of a moving radiant object. A probe, such as a pyrometer, is disposed in an opening of a vacuum chamber adjacent a radiation transparent window. The probe defines an optical path which intercepts the radiant object entering or exiting a processing chamber. The radiant object is moved through the optical path and emits electromagnetic waves. The electromagnetic waves are collected by the probe and transmitted to a signal processing unit where the waves are detected and converted to a temperature reading. If desired, the accumulated data may then be used to generate a cooling curve representing the thermal effects experienced by the radiant object. Extrapolation or correlation methods may be used to extend the cooling curve to points in time prior to or after the data collected by the probe.Type: GrantFiled: February 19, 1999Date of Patent: February 20, 2001Assignee: Applied Materials, Inc.Inventors: Ashok Das, Nety Krishna, Marc Schweitzer, Nalin Patadia, Wei Yang, Umesh Kelkar, Vijay Parkhe, Scot Petitt, Nitin Khurana
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Patent number: 6117245Abstract: The invention provides an apparatus and a method of regulating temperature of a component of a processing chamber comprising providing a thermal conductor thermally connected to the component, providing a controller connected to the thermal conductor, providing at least one temperature sensor connected to the component to supply temperature readings to the controller and regulating heat transfer between the component and the thermal conductor by changing the temperature of the thermal conductor. The invention also provides an apparatus and a method for providing a thermal gradient in a chamber component comprising providing a first thermal conductor at a first temperature attached to the component and providing a second thermal conductor at a second temperature attached to the component.Type: GrantFiled: April 8, 1998Date of Patent: September 12, 2000Assignee: Applied Materials, Inc.Inventors: Tushar Mandrekar, Anish Tolia, Nitin Khurana