Patents by Inventor Sanjay D. Yadav

Sanjay D. Yadav 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: 20180331328
    Abstract: Embodiments of the present disclosure generally describe a method for depositing a barrier layer of SiN using a high density plasma chemical vapor deposition (HDP-CVD) process, and in particular, controlling a film stress of the deposited SiN layer by biasing the substrate during the deposition process.
    Type: Application
    Filed: June 5, 2017
    Publication date: November 15, 2018
    Inventors: Tae Kyung WON, Soo Young CHOI, Sanjay D. YADAV, Carl A. SORENSEN, Chien-Teh KAO, Suhail ANWAR, Young Dong LEE
  • Publication number: 20180016677
    Abstract: An apparatus for processing substrates is described. More particularly, embodiments of the present disclosure relate to an improved substrate support for heating and cooling substrates using turbulent flow during processing. By creating a turbulent flow within the channels, a greater amount of heat is transferred in a shorter period of time. The present design is cost effective and advantageously provides for a more uniform distribution of temperature transfer. In one embodiment, a substrate support assembly is disclosed. The substrate support assembly includes a electrostatic chuck with a surface that is in contact with a substrate and a support plate adjacent the electrostatic chuck. The support plate includes one or more channels, one or more end spaces, and one or more plugs. The substrate support assembly also includes a shaft coupled to the support plate.
    Type: Application
    Filed: June 14, 2017
    Publication date: January 18, 2018
    Inventors: Subhasish ROY, Raghav Mirle SEETHARAMU, Umesha ACHARY, Sanjay D. YADAV, Tae Kyung WON
  • Publication number: 20170362712
    Abstract: Embodiments disclosed herein generally relate to a substrate temperature monitoring system in a substrate support assembly. In one embodiment, the substrate support assembly includes a support plate and a substrate temperature monitoring system. The support plate has a top surface configured to support a substrate. The substrate temperature monitoring system is disposed in the substrate support plate. The substrate temperature monitoring system is configured to measure a temperature of the substrate from a bottom surface of the substrate. The substrate temperature monitoring system includes a window, a body, and a temperature sensor. The window is integrally formed in a top surface of the support plate. The body is embedded in the support plate, through the bottom surface. The body defines an interior passage. The temperature sensor is disposed in the interior passage beneath the window. The temperature sensor is configured to measure the temperature of the substrate.
    Type: Application
    Filed: June 21, 2016
    Publication date: December 21, 2017
    Inventors: Sanjay D. YADAV, Shreesha Y. RAO, Tae Kyung WON, Umesha ACHARY, Himanshu JOSHI
  • Publication number: 20150211120
    Abstract: The present disclosure relates to a corner spoiler designed to decrease high deposition rates on corner regions of substrates by changing the gas flow. In one embodiment, a corner spoiler for a processing chamber includes an L-shaped body fabricated from a dielectric material, wherein the L-shaped body is configured to change plasma distribution at a corner of a substrate in the processing chamber. The L-shaped body includes a first and second leg, wherein the first and second legs meet at an inside corner of the L-shaped body. The length of the first or second leg is twice the distance defined between the first or second leg and the inside corner. In another embodiment, a shadow frame for a depositing chamber includes a rectangular shaped body having a rectangular opening therethrough, and one or more corner spoilers coupled to the rectangular shaped body at corners of the rectangular shaped body.
    Type: Application
    Filed: January 30, 2015
    Publication date: July 30, 2015
    Inventors: Lai ZHAO, Gaku FURUTA, Qunhua WANG, Robin L. TINER, Beom Soo PARK, Soo Young CHOI, Sanjay D. YADAV
  • Patent number: 7951620
    Abstract: The present invention generally relates to organic light emitting diode (OLED) structures and methods for their manufacture. To increase the lifetime of an OLED structure, an encapsulating layer may be deposited over the OLED structure. The encapsulating layer may fully enclose or “encapsulate” the OLED structure. The encapsulating layer may have a substantially planar surface opposite to the interface between the OLED structure and the encapsulating layer. The planar surface permits successive layers to be evenly deposited over the OLED structure. The encapsulating layer reduces any oxygen penetration into the OLED structure and may increase the lifetime of the OLED structure.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: May 31, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Tae K. Won, Jose Manuel Dieguez Campo, Sanjay D. Yadav
  • Patent number: 7031600
    Abstract: A method and apparatus for depositing a dielectric material at a rate of at least 3000 Angstroms per minute on a large area substrate that has a surface area of at least about 0.35 square meters is provided. In one embodiment, the dielectric material is silicon oxide. Also provided is a large area substrate having a layer of dielectric material deposited by a process yielding a deposition rate in excess of about 3000 Angstroms per minute and a processing chamber for fabricating the same.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: April 18, 2006
    Assignee: Applied Materials, Inc.
    Inventors: Sanjay D. Yadav, Quanyuan Shang, Wendell T. Blonigan
  • Publication number: 20040194701
    Abstract: A method and apparatus for depositing a dielectric material at a rate of at least 3000 Angstroms per minute on a large area substrate that has a surface area of at least about 0.35 square meters is provided. In one embodiment, the dielectric material is silicon oxide. Also provided is a large area substrate having a layer of dielectric material deposited by a process yielding a deposition rate in excess of about 3000 Angstroms per minute and a processing chamber for fabricating the same.
    Type: Application
    Filed: April 7, 2003
    Publication date: October 7, 2004
    Applicant: Applied Materials, Inc.
    Inventors: Sanjay D. Yadav, Quanyuan Shang, Wendell T. Blonigan