Patents by Inventor Schubert S. Chu

Schubert S. Chu 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).

  • Publication number: 20180082874
    Abstract: Embodiments disclosed herein generally relate to apparatus and methods for controlling substrate outgassing such that hazardous gasses are eliminated from a surface of a substrate after a Si:As process has been performed on a substrate, and prior to additional processing. The apparatus includes a purge station including an enclosure, a gas supply coupled to the enclosure, an exhaust pump coupled to the enclosure, a first purge gas port formed in the enclosure, a first channel operatively connected to the gas supply at a first end and to the first purge gas port at a second end, a second purge gas port formed in the enclosure, and a second channel operatively connected to the second purge gas port at a third end and to the exhaust pump at a fourth end. The first channel includes a particle filter, a heater, and a flow controller. The second channel includes a dry scrubber.
    Type: Application
    Filed: September 16, 2016
    Publication date: March 22, 2018
    Inventors: Xinyu BAO, Chun YAN, Hua CHUNG, Schubert S. CHU
  • Publication number: 20180082835
    Abstract: Implementations disclosed herein relate to methods for controlling substrate outgassing of hazardous gasses after an epitaxial process. In one implementation, the method includes providing a substrate comprising an epitaxial layer into a transfer chamber, wherein the transfer chamber has an ultraviolet (UV) lamp module disposed adjacent to a top ceiling of the transfer chamber, flowing an oxygen-containing gas into the transfer chamber through a gas line of the transfer chamber, flowing a non-reactive gas into the transfer chamber through the gas line of the transfer chamber, activating the UV lamp module to oxidize residues or species on a surface of the substrate to form an outgassing barrier layer on the surface of the substrate, ceasing the flow of the oxygen-containing gas and the nitrogen-containing gas into the transfer chamber, pumping the transfer chamber, and deactivating the UV lamp module.
    Type: Application
    Filed: January 27, 2017
    Publication date: March 22, 2018
    Inventors: Chun YAN, Xinyu BAO, Hua CHUNG, Schubert S. CHU
  • Patent number: 9923081
    Abstract: A device comprising Si:As source and drain extensions and Si:As or Si:P source and drain features formed using selective epitaxial growth and a method of forming the same is provided. The epitaxial layers used for the source and drain extensions and the source and drain features herein are deposited by simultaneous film formation and film etching, wherein the deposited material on the monocrystalline layer is etched at a slower rate than deposition material deposited on non-monocrystalline location of a substrate. As a result, an epitaxial layer is deposited on the monocrystalline surfaces, and a layer is not deposited on non-monocrystalline surfaces of the same base material, such as silicon.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: March 20, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Xinyu Bao, Zhiyuan Ye, Flora Fong-Song Chang, Abhishek Dube, Xuebin Li, Errol Antonio C. Sanchez, Hua Chung, Schubert S. Chu
  • Publication number: 20180073162
    Abstract: Implementations of the present disclosure generally relate to the fabrication of integrated circuits. More specifically, implementations disclosed herein relate to apparatus, systems, and methods for reducing substrate outgassing. A substrate is processed in an epitaxial deposition chamber for depositing an arsenic-containing material on a substrate and then transferred to a degassing chamber for reducing arsenic outgassing on the substrate. The degassing chamber includes a gas panel for supplying hydrogen, nitrogen, and oxygen and hydrogen chloride or chlorine gas to the chamber, a substrate support, a pump, and at least one heating mechanism. Residual or fugitive arsenic is removed from the substrate such that the substrate may be removed from the degassing chamber without dispersing arsenic into the ambient environment.
    Type: Application
    Filed: January 24, 2017
    Publication date: March 15, 2018
    Inventors: Xinyu BAO, Chun YAN, Hua CHUNG, Schubert S. CHU
  • Publication number: 20180076065
    Abstract: Implementations of the present disclosure generally relate to methods and apparatuses for epitaxial deposition on substrate surfaces. More particularly, implementations of the present disclosure generally relate to an integrated system for processing N-type metal-oxide semiconductor (NMOS) devices. In one implementation, a cluster tool for processing a substrate is provided. The cluster tool includes a pre-clean chamber, an etch chamber, one or more pass through chambers, one or more outgassing chambers, a first transfer chamber, a second transfer chamber, and one or more process chambers. The pre-clean chamber and the etch chamber are coupled to a first transfer chamber. The one or more pass through chambers are coupled to and disposed between the first transfer chamber and the second transfer chamber. The one or more outgassing chambers are coupled to the second transfer chamber. The one or more process chambers are coupled to the second transfer chamber.
    Type: Application
    Filed: January 27, 2017
    Publication date: March 15, 2018
    Inventors: Xinyu BAO, Hua CHUNG, Schubert S. CHU
  • Publication number: 20180076031
    Abstract: Implementations disclosed herein relate to methods for controlling substrate outgassing. In one implementation, the method includes removing oxides from an exposed surface of a substrate in an inductively coupled plasma chamber, forming an epitaxial layer on the exposed surface of the substrate in an epitaxial deposition chamber, and performing an outgassing control of the substrate by subjecting the substrate to a first plasma formed from a first etch precursor in the inductively coupled plasma chamber at a first chamber pressure, wherein the first etch precursor comprises a hydrogen-containing precursor, a chlorine-containing precursor, and an inert gas, and subjecting the substrate to a second plasma formed from a second etch precursor in the inductively coupled plasma chamber at a second chamber pressure that is higher than the first chamber pressure, wherein the second etch precursor comprises a hydrogen-containing precursor and an inert gas.
    Type: Application
    Filed: January 27, 2017
    Publication date: March 15, 2018
    Inventors: Chun YAN, Xinyu BAO, Hua CHUNG, Schubert S. CHU
  • Patent number: 9881790
    Abstract: Embodiments of the present disclosure generally relate to methods for forming a doped silicon epitaxial layer on semiconductor devices at increased pressure and reduced temperature. In one embodiment, the method includes heating a substrate disposed within a processing chamber to a temperature of about 550 degrees Celsius to about 800 degrees Celsius, introducing into the processing chamber a silicon source comprising trichlorosilane (TCS), a phosphorus source, and a gas comprising a halogen, and depositing a silicon containing epitaxial layer comprising phosphorus on the substrate, the silicon containing epitaxial layer having a phosphorus concentration of about 1×1021 atoms per cubic centimeter or greater, wherein the silicon containing epitaxial layer is deposited at a chamber pressure of about 150 Torr or greater.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: January 30, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Abhishek Dube, Xuebin Li, Yi-Chiau Huang, Hua Chung, Schubert S. Chu
  • Publication number: 20170350038
    Abstract: Implementations of the present disclosure generally relate to an improved vacuum processing system. In one implementation, the vacuum processing system includes a first transfer chamber coupling to at least one epitaxy process chamber, a second transfer chamber, a transition station disposed between the first transfer chamber and the second transfer chamber, a first plasma-cleaning chamber coupled to the second transfer chamber for removing oxides from a surface of a substrate, and a load lock chamber coupled to the second transfer chamber. The transition station connects to the first transfer chamber and the second transfer chamber, and the transition station includes a second plasma-cleaning chamber for removing carbon-containing contaminants from the surface of the substrate.
    Type: Application
    Filed: April 27, 2017
    Publication date: December 7, 2017
    Inventors: Kin Pong LO, Schubert S. CHU
  • Publication number: 20170352531
    Abstract: Methods and apparatus for processing a substrate are described herein. Methods for passivating dielectric materials include forming alkyl silyl moieties on exposed surfaces of the dielectric materials. Suitable precursors for forming the alkyl silyl moieties include (trimethylsilyl)pyrrolidine, aminosilanes, and dichlorodimethylsilane, among others. A capping layer may be selectively deposited on source/drain materials after passivation of the dielectric materials. Apparatus for performing the methods described herein include a platform comprising a transfer chamber, a pre-clean chamber, an epitaxial deposition chamber, a passivation chamber, and an atomic layer deposition chamber.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 7, 2017
    Inventors: Abhishek DUBE, Schubert S. CHU, Jessica S. KACHIAN, David THOMPSON, Jeffrey ANTHIS
  • Publication number: 20170323795
    Abstract: Methods for forming transistors are provided. A substrate is placed in a processing chamber, and a plurality of epitaxial features is formed on the substrate. The epitaxial feature has at least a surface having the (110) plane and a surface having the (100) plane. An etchant or a gas mixture including an etchant and an etch enhancer or an etch suppressor is introduced into the processing chamber to remove a portion of the epitaxial feature. Etch selectivity between the surface having the (110) plane and the surface having the (100) plane can be tuned by varying the pressure within the processing chamber, the ratio of the flow rate of the etchant or gas mixture to the flow rate of a carrier gas, and/or the ratio of the flow rate of the etch enhancer or suppressor to the flow rate of the etchant.
    Type: Application
    Filed: May 2, 2017
    Publication date: November 9, 2017
    Inventors: Xuebin LI, Hua CHUNG, Flora Fong-Song CHANG, Abhishek DUBE, Yi-Chiau HUANG, Schubert S. CHU
  • Publication number: 20170314158
    Abstract: Methods and apparatus for deposition processes are provided herein. In some embodiments, an apparatus may include a substrate support comprising a susceptor plate having a pocket disposed in an upper surface of the susceptor plate and having a lip formed in the upper surface and circumscribing the pocket, the lip configured to support a substrate on the lip; and a plurality of vents extending from the pocket to the upper surface of the susceptor plate to exhaust gases trapped between the backside of the substrate and the pocket when a substrate is disposed on the lip. Methods of utilizing the inventive apparatus for depositing a layer on a substrate are also disclosed.
    Type: Application
    Filed: May 15, 2017
    Publication date: November 2, 2017
    Inventors: NYI O. MYO, KEVIN BAUTISTA, ZHIYUAN YE, SCHUBERT S. CHU, YIHWAN KIM
  • Patent number: 9768013
    Abstract: Methods and apparatus for processing a substrate are described herein. Methods for passivating dielectric materials include forming alkyl silyl moieties on exposed surfaces of the dielectric materials. Suitable precursors for forming the alkyl silyl moieties include (trimethylsilyl)pyrrolidine, aminosilanes, and dichlorodimethylsilane, among others. A capping layer may be selectively deposited on source/drain materials after passivation of the dielectric materials. Apparatus for performing the methods described herein include a platform comprising a transfer chamber, a pre-clean chamber, an epitaxial deposition chamber, a passivation chamber, and an atomic layer deposition chamber.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: September 19, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Abhishek Dube, Schubert S. Chu, Jessica S. Kachian, David Thompson, Jeffrey Anthis
  • Publication number: 20170175265
    Abstract: In one embodiment, a susceptor is provided and includes a first major surface opposing a second major surface, and a plurality of contact structures disposed on the first major surface, each of the contact structures being at least partially surrounded by one or more of a plurality of radially oriented grooves and an annular groove, wherein each of the plurality of contact structures includes a substrate contact surface, each of the substrate contact surfaces is between two parallel planes separated by a distance of 0.1 millimeters, and the substrate contact surfaces define a substrate receiving surface.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: Kartik SHAH, Schubert S. CHU, Nyi O. MYO, Karthik RAMANATHAN, Richard O. COLLINS, Zhepeng CONG, Nitin PATHAK
  • Publication number: 20170178962
    Abstract: Implementations of the present disclosure generally relate to methods for epitaxial growth of a silicon material on an epitaxial film. In one implementation, the method includes forming an epitaxial film over a semiconductor fin, wherein the epitaxial film includes a top surface having a first facet and a second facet, and forming an epitaxial layer on at least the top surface of the epitaxial film by alternatingly exposing the top surface to a first precursor gas comprising one or more silanes and a second precursor gas comprising one or more chlorinated silanes at a temperature of about 375° C. to about 450° C. and a chamber pressure of about 5 Torr to about 20 Torr.
    Type: Application
    Filed: December 27, 2016
    Publication date: June 22, 2017
    Inventors: Abhishek DUBE, Hua CHUNG, Jenn-Yue WANG, Xuebin LI, Yi-Chiau HUANG, Schubert S. CHU
  • Patent number: 9650726
    Abstract: Methods and apparatus for deposition processes are provided herein. In some embodiments, an apparatus may include a substrate support comprising a susceptor plate having a pocket disposed in an upper surface of the susceptor plate and having a lip formed in the upper surface and circumscribing the pocket, the lip configured to support a substrate on the lip; and a plurality of vents extending from the pocket to the upper surface of the susceptor plate to exhaust gases trapped between the backside of the substrate and the pocket when a substrate is disposed on the lip. Methods of utilizing the inventive apparatus for depositing a layer on a substrate are also disclosed.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: May 16, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Nyi O. Myo, Kevin Bautista, Zhiyuan Ye, Schubert S. Chu, Yihwan Kim
  • Publication number: 20170103907
    Abstract: Embodiments of the present disclosure generally relate to apparatus and methods for semiconductor processing, more particularly, to a thermal process chamber. The thermal process chamber may include a substrate support, a first plurality of heating elements disposed over the substrate support, and one or more high-energy radiant source assemblies disposed over the first plurality of heating elements. The one or more high-energy radiant source assemblies are utilized to provide local heating of cold regions on a substrate disposed on the substrate support during processing. Localized heating of the substrate improves temperature profile, which in turn improves deposition uniformity.
    Type: Application
    Filed: October 7, 2016
    Publication date: April 13, 2017
    Inventors: Schubert S. CHU, Douglas E. HOLMGREN, Kartik SHAH, Palamurali GAJENDRA, Nyi O. MYO, Preetham RAO, Kevin Joseph BAUTISTA, Zhiyuan YE, Martin A. HILKENE, Errol Antonio C. SANCHEZ, Richard O. COLLINS
  • Publication number: 20170084449
    Abstract: Methods and apparatus for processing a substrate are described herein. Methods for passivating dielectric materials include forming alkyl silyl moieties on exposed surfaces of the dielectric materials. Suitable precursors for forming the alkyl silyl moieties include (trimethylsilyl)pyrrolidine, aminosilanes, and dichlorodimethylsilane, among others. A capping layer may be selectively deposited on source/drain materials after passivation of the dielectric materials. Apparatus for performing the methods described herein include a platform comprising a transfer chamber, a pre-clean chamber, an epitaxial deposition chamber, a passivation chamber, and an atomic layer deposition chamber.
    Type: Application
    Filed: August 25, 2016
    Publication date: March 23, 2017
    Inventors: Abhishek DUBE, Schubert S. CHU, Jessica S. KACHIAN, David THOMPSON, Jeffrey ANTHIS
  • Patent number: 9530638
    Abstract: Implementations of the present disclosure generally relate to methods for epitaxial growth of a silicon material on an epitaxial film. In one implementation, the method includes forming an epitaxial film over a semiconductor fin, wherein the epitaxial film includes a top surface having a first facet and a second facet, and forming an epitaxial layer on at least the top surface of the epitaxial film by alternatingly exposing the top surface to a first precursor gas comprising one or more silanes and a second precursor gas comprising one or more chlorinated silanes at a temperature of about 375° C. to about 450° C. and a chamber pressure of about 5 Torr to about 20 Torr.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: December 27, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Abhishek Dube, Hua Chung, Jenn-Yue Wang, Xuebin Li, Yi-Chiau Huang, Schubert S. Chu
  • Publication number: 20160300715
    Abstract: Embodiments of the present disclosure generally relate to methods for forming a doped silicon epitaxial layer on semiconductor devices at increased pressure and reduced temperature. In one embodiment, the method includes heating a substrate disposed within a processing chamber to a temperature of about 550 degrees Celsius to about 800 degrees Celsius, introducing into the processing chamber a silicon source comprising trichlorosilane (TCS), a phosphorus source, and a gas comprising a halogen, and depositing a silicon containing epitaxial layer comprising phosphorus on the substrate, the silicon containing epitaxial layer having a phosphorus concentration of about 1×1021 atoms per cubic centimeter or greater, wherein the silicon containing epitaxial layer is deposited at a chamber pressure of about 150 Torr or greater.
    Type: Application
    Filed: April 5, 2016
    Publication date: October 13, 2016
    Inventors: Abhishek DUBE, Xuebin LI, Yi-Chiau HUANG, Hua CHUNG, Schubert S. CHU
  • Publication number: 20160227606
    Abstract: A process chamber is provided including a top, a bottom, and a sidewall coupled together to define a volume. A substrate support is disposed in the volume. The process chamber further includes one or more lampheads facing the substrate support, each lamphead comprising an arrangement of lamps disposed along a plane. The arrangement of lamps is defined by a center and a plurality of concentric ring-shaped zones. Each ring-shaped zone is defined by an inner edge and an outer edge and each ring-shaped zone includes three or more alignments of one or more lamps. Each alignment of one or more lamps has a first end extending linearly to a second end that are separated by at least 10 degrees around the center. The first end and the second end are both located within one ring-shaped zone. Each alignment located within a same ring-shaped zone is equidistant to the center.
    Type: Application
    Filed: February 1, 2016
    Publication date: August 4, 2016
    Inventors: Mehmet Tugrul SAMIR, Schubert S. CHU