Patents by Inventor Sandeep Mariserla

Sandeep Mariserla 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).

  • Patent number: 9097388
    Abstract: Multiple waste streams, including incompatible chemicals such as concentrated acids and/or strong base effluents, are handled together without the need for limiting or interrupting the processes run by the wafer processing tools. In some embodiments, waste tanks are primed with diluents, such as water, and a predetermined percentage of diluent is maintained in the waste tanks. In some embodiments, a diluent is flowed into the waste tanks concurrently with the waste pumping to generate a rinsing action for the waste tanks. Methods of the present disclosure accommodate both gravity type and vacuum type waste tanks.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: August 4, 2015
    Assignee: Intermolecular, Inc.
    Inventors: Sandeep Mariserla, Brian Kennedy Foster, Aaron T. Francis, Gregory P. Lim, Jeffrey Chih-Hou Lowe, Robert Anthony Sculac
  • Patent number: 8974606
    Abstract: A cleaning assembly is provided. The cleaning assembly includes a plate having a front surface and a back surface and a manifold affixed to an edge of the plate. The manifold has a plurality of outlets extending therefrom. The plate further includes a plurality of cups extending through the plate. The plurality of cups have an upper body with an outlet extending from the back surface and the plurality of cups have a sealing portion coupled to the upper body and extending from the front surface of the plate. Each outlet of the upper body is coupled to one of the corresponding plurality of outlets of the manifold. The plate also includes a plurality of alignment pins extending from the front surface of the plate. The plurality of alignment pins are configured to support an edge of a substrate, wherein one of the plurality of alignment pins is slidably mounted to the plate. A plurality of guide pins extends the same distance from the back surface.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: March 10, 2015
    Assignee: Intermolecular, Inc.
    Inventors: Gregory Lim, Aaron Francis, Kenneth Williams, Sandeep Mariserla
  • Patent number: 8835329
    Abstract: Methods for combinatorially processing semiconductor substrates are provided. The methods may involve receiving a substrate into a combinatorial processing chamber and sealing a plurality of flow cells against a surface of the substrate. The plurality of flow cells is enclosed within the combinatorial processing chamber to define an enclosed external environment for the plurality of flow cells. A pressure differential is created between a reaction area of the plurality of flow cells of the combinatorial processing chamber and the external environment, wherein each flow cells of the plurality of flow cells defines a site isolating region of the substrate. The regions the substrate are then combinatorially processed.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: September 16, 2014
    Assignee: Intermolecular, Inc.
    Inventors: Sandeep Mariserla, Aaron T. Francis, Jeffrey Chih-Hou Lowe, Robert Anthony Sculac
  • Patent number: 8807550
    Abstract: A method for combinatorially processing a substrate is provided. The method includes providing a substrate disposed on a substrate support. The substrate and the substrate support are raised against a plurality of sealing surfaces of corresponding sleeves of a plurality of flow cells of a combinatorial processing chamber. The combinatorial processing chamber is operable to concurrently process different regions of the substrate differently. A sealing pressure between the sealing surface of the sleeves and a surface of the substrate is monitored and the raising is terminated when a desired pressure is obtained. The different regions of the substrate are then processed differently.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: August 19, 2014
    Assignee: Intermolecular, Inc.
    Inventors: Jeffrey Chih-Hou Lowe, Sandeep Mariserla, Robert Sculac
  • Publication number: 20140188264
    Abstract: Methods of semiconductor processing are described. An experiment is designed for each process of a semiconductor substrate, which are implemented on respective multiple regions of the semiconductor substrate. A unique identifier is assigned to the semiconductor substrate. The respective design of experiment is implemented for each of the processes of the semiconductor substrate. Process criteria for each process is recorded, where the recording is associated with the assigned unique identifier. Process information is retrieved for each process, via its respective assigned unique identifier.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 3, 2014
    Applicant: INTERMOLECULAR, INC.
    Inventors: Harikrishanan Rajagopal, Yoshiki E. Ashizawa, Joseph M. Jackson, Sandeep Mariserla, Heng Cheng Pai, Radha Subrahmanyan, Karen Yang
  • Publication number: 20140174481
    Abstract: The embodiments describe methods for controlling the particles generated when cleaning and drying a wafer in a spin rinse dryer (SRD) module. In some embodiments, the substrate surface is cooled by dispensing deionized (DI) water across the surface of the substrate, while the substrate rests on the SRD chuck. In addition, a method for controlling the particles generated when sleeves in a processing module or SRD contact a substrate surface during a clamping operation or when the sleeves are removed from the substrate surface is provided. A bottom edge or lip of the sleeves and/or the surface of the wafer contacting the sleeve is wetted during clamping/unclamping operations. Alternatively, the substrate may be wetted prior to clamping/unclamping operations.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Applicant: Intermolecular, Inc.
    Inventors: Satbir Kahlon, Jeffrey Chih-Hou Lowe, Frank C. Ma, Sandeep Mariserla, Robert Anthony Sculac
  • Publication number: 20140124038
    Abstract: Methods for combinatorially processing semiconductor substrates are provided. The methods may involve receiving a substrate into a combinatorial processing chamber and sealing a plurality of flow cells against a surface of the substrate. The plurality of flow cells is enclosed within the combinatorial processing chamber to define an enclosed external environment for the plurality of flow cells. A pressure differential is created between a reaction area of the plurality of flow cells of the combinatorial processing chamber and the external environment, wherein each flow cells of the plurality of flow cells defines a site isolating region of die substrate. The regions the substrate are then combinatorially processed.
    Type: Application
    Filed: November 6, 2012
    Publication date: May 8, 2014
    Applicant: INTERMOLECULAR, INC.
    Inventors: Sandeep Mariserla, Aaron T. Francis, Jeffrey Chih-Hou Lowe, Robert Anthony Sculac
  • Patent number: 8663397
    Abstract: The embodiments describe methods for controlling the particles generated when cleaning and drying a wafer in a spin rinse dryer (SRD) module. In some embodiments, the substrate surface is cooled by dispensing deionized (DI) water across the surface of the substrate, while the substrate rests on the SRD chuck. In addition, a method for controlling the particles generated when sleeves in a processing module or SRD contact a substrate surface during a clamping operation or when the sleeves are removed from the substrate surface is provided. A bottom edge or lip of the sleeves and/or the surface of the wafer contacting the sleeve is wetted during clamping/unclamping operations. Alternatively, the substrate may be wetted prior to clamping/unclamping operations.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: March 4, 2014
    Assignee: Intermolecular, Inc.
    Inventors: Satbir Kahlon, Jeffrey Chih-Hou Lowe, Frank C. Ma, Sandeep Mariserla, Robert Anthony Sculac
  • Publication number: 20140014184
    Abstract: Multiple waste streams, including incompatible chemicals such as concentrated acids and/or strong base effluents, are handled together without the need for limiting or interrupting the processes run by the wafer processing tools. In some embodiments, waste tanks are primed with diluents, such as water, and a predetermined percentage of diluent is maintained in the waste tanks. In some embodiments, a diluent is flowed into the waste tanks concurrently with the waste pumping to generate a rinsing action for the waste tanks. Methods of the present disclosure accommodate both gravity type and vacuum type waste tanks.
    Type: Application
    Filed: July 13, 2012
    Publication date: January 16, 2014
    Inventors: Sandeep Mariserla, Brain Kennedy Foster, Aaron T. Francis, Gregory P. Lim, Jeffrey Chih-Hou Lowe, Robert Anthony Sculac
  • Publication number: 20130149077
    Abstract: A method for combinatorially processing a substrate is provided. The method includes providing a substrate disposed on a substrate support. The substrate and the substrate support are raised against a plurality of sealing surfaces of corresponding sleeves of a plurality of flow cells of a combinatorial processing chamber. The combinatorial processing chamber is operable to concurrently process different regions of the substrate differently. A sealing pressure between the sealing surface of the sleeves and a surface of the substrate is monitored and the raising is terminated when a desired pressure is obtained. The different regions of the substrate are then processed differently.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 13, 2013
    Applicant: Intermolecular, Inc.
    Inventors: Jeffrey Chih-Hou Lowe, Sandeep Mariserla, Robert Sculac
  • Publication number: 20120285493
    Abstract: A cleaning assembly is provided. The cleaning assembly includes a plate having a front surface and a back surface and a manifold affixed to an edge of the plate. The manifold has a plurality of outlets extending therefrom. The plate further includes a plurality of cups extending through the plate. The plurality of cups have an upper body with an outlet extending from the back surface and the plurality of cups have a sealing portion coupled to the upper body and extending from the front surface of the plate. Each outlet of the upper body is coupled to one of the corresponding plurality of outlets of the manifold. The plate also includes a plurality of alignment pins extending from the front surface of the plate. The plurality of alignment pins are configured to support an edge of a substrate, wherein one of the plurality of alignment pins is slidably mounted to the plate. A plurality of guide pins extends the same distance from the back surface.
    Type: Application
    Filed: May 9, 2011
    Publication date: November 15, 2012
    Applicant: Intermolecular, Inc.
    Inventors: Gregory Lim, Aaron Francis, Kenneth Williams, Sandeep Mariserla