Patents by Inventor Shankar Venkataraman

Shankar Venkataraman 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: 8894767
    Abstract: Apparatus and methods for gas distribution assemblies are provided. In one aspect, a gas distribution assembly is provided comprising an annular body comprising an annular ring having an inner annular wall, an outer wall, an upper surface, and a bottom surface, an upper recess formed into the upper surface, and a seat formed into the inner annular wall, an upper plate positioned in the upper recess, comprising a disk-shaped body having a plurality of first apertures formed therethrough, and a bottom plate positioned on the seat, comprising a disk-shaped body having a plurality of second apertures formed therethrough which align with the first apertures, and a plurality of third apertures formed between the second apertures and through the bottom plate, the bottom plate sealingly coupled to the upper plate to fluidly isolate the plurality of first and second apertures from the plurality of third apertures.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: November 25, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Kien N. Chuc, Qiwei Liang, Hanh D. Nguyen, Xinglong Chen, Matthew Miller, Soonam Park, Toan Q. Tran, Adib Khan, Jang-Gyoo Yang, Dmitry Lubomirsky, Shankar Venkataraman
  • Patent number: 8863727
    Abstract: This disclosure provides a fuel injector system and method in which the timing of events in during period of fuel injection of a piezoelectric-actuated fuel injector are estimated based on sensed forces within the injector. The force sensor is positioned between a piezoelectric actuator and a hydraulic link assembly mechanically coupled with the piezoelectric actuator, and the force sensor operable to output a signal corresponding to forces between the piezoelectric actuator and the hydraulic link assembly. From information contained in the sensor output signal, timing in the injection period of at least one fueling characteristic based can be estimated to allow for adjusting fuel injector characteristics to compensate for variations affecting fuel injection, such as manufacturing tolerances, environmental conditions, and deterioration/wear.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: October 21, 2014
    Assignee: Cummins Intellectual Property, Inc.
    Inventors: Syed S. Jalal, Douglas W. Memering, Richard E. Reisinger, Edward Benjamin Manring, Jesus Carmona-Valdes, Anthony A. Shaull, Shankar Venkataraman, William David Daniel
  • Patent number: 8855197
    Abstract: A video stream is transcoded to provide a plurality of primary profiles. Individual frames of the video stream have a Presentation Time Stamp (PTS). A PTS is used as a token to identify particular frames to be encoded as Instantaneous Decoder Refresh (IDR) frames in each profile. An IDR frame period is determined, indicative of a desired number of video frames between two IDR frames. An IDR frame is inserted into each profile every IDR frame period. The IDR frames of each profile are aligned with the same IDR frames of the other profiles. The PTS of each IDR frame in each profile is monitored. Upon determining that a PTS is out of alignment, the next PTS of the affected profile is aligned with the corresponding PTS of remaining profiles. Backup transcoders produce backup profiles that are maintained in alignment with each other and with the primary profiles.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: October 7, 2014
    Assignee: RGB Networks, Inc.
    Inventors: Yuval Fisher, Hain-Ching Liu, Dan R. Hunt, Shankar Venkataraman, Hsiang-Yun Alex Huang
  • Publication number: 20140273406
    Abstract: Systems, chambers, and processes are provided for controlling process defects caused by moisture contamination. The systems may provide configurations for chambers to perform multiple operations in a vacuum or controlled environment. The chambers may include configurations to provide additional processing capabilities in combination chamber designs. The methods may provide for the limiting, prevention, and correction of aging defects that may be caused as a result of etching processes performed by system tools.
    Type: Application
    Filed: April 8, 2014
    Publication date: September 18, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Anchuan Wang, Xinglong Chen, Zihui Li, Hiroshi Hamana, Zhijun Chen, Ching-Mei Hsu, Jiayin Huang, Nitin K. Ingle, Dmitry Lubomirsky, Shankar Venkataraman, Randhir Thakur
  • Publication number: 20140282189
    Abstract: Method, system, and computer program product to enforce application dependencies, by building a data model based on inputs specifying relationships between a plurality of applications, generating, based on the data model, a list of candidate executions for a first application having a specified relationship with a second application, and outputting a visual representation of the data model, the visual representation comprising a plurality of objects representing the plurality of applications and arranged to represent the relationships between the applications, the list of candidate executions, and one or more user interface elements allowing user navigation between the first application and the second application, of the list of candidate executions.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 18, 2014
    Applicant: International Business Machines Corporation
    Inventors: Anju Bansal, Sunil Bharadwaj, Raghuram R. Velega, Shankar Venkataraman, Chitra Venkatramani, Rohit S. Wagle
  • Publication number: 20140271097
    Abstract: Systems, chambers, and processes are provided for controlling process defects caused by moisture contamination. The systems may provide configurations for chambers to perform multiple operations in a vacuum or controlled environment. The chambers may include configurations to provide additional processing capabilities in combination chamber designs. The methods may provide for the limiting, prevention, and correction of aging defects that may be caused as a result of etching processes performed by system tools.
    Type: Application
    Filed: February 24, 2014
    Publication date: September 18, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Anchuan WANG, Xinglong CHEN, Zihui LI, Hiroshi HAMANA, Zhijun CHEN, Ching-Mei HSU, Jiayin HUANG, Nitin K. INGLE, Dmitry LUBOMIRSKY, Shankar VENKATARAMAN, Randhir THAKUR
  • Publication number: 20140273481
    Abstract: Systems, chambers, and processes are provided for controlling process defects caused by moisture contamination. The systems may provide configurations for chambers to perform multiple operations in a vacuum or controlled environment. The chambers may include configurations to provide additional processing capabilities in combination chamber designs. The methods may provide for the limiting, prevention, and correction of aging defects that may be caused as a result of etching processes performed by system tools.
    Type: Application
    Filed: April 7, 2014
    Publication date: September 18, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Anchuan Wang, Xinglong Chen, Zihui Li, Hiroshi Hamana, Zhijun Chen, Ching-Mei Hsu, Jiayin Huang, Nitin K. Ingle, Dmitry Lubomirsky, Shankar Venkataraman, Randhir Thakur
  • Publication number: 20140273489
    Abstract: Systems, chambers, and processes are provided for controlling process defects caused by moisture contamination. The systems may provide configurations for chambers to perform multiple operations in a vacuum or controlled environment. The chambers may include configurations to provide additional processing capabilities in combination chamber designs. The methods may provide for the limiting, prevention, and correction of aging defects that may be caused as a result of etching processes performed by system tools.
    Type: Application
    Filed: April 7, 2014
    Publication date: September 18, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Anchuan Wang, Xinglong Chen, Zihui Li, Hiroshi Hamana, Zhijun Chen, Ching-Mei Hsu, Jiayin Huang, Nitin K. Ingle, Dmitry Lubomirsky, Shankar Venkataraman, Randhir Thakur
  • Publication number: 20140273488
    Abstract: Systems, chambers, and processes are provided for controlling process defects caused by moisture contamination. The systems may provide configurations for chambers to perform multiple operations in a vacuum or controlled environment. The chambers may include configurations to provide additional processing capabilities in combination chamber designs. The methods may provide for the limiting, prevention, and correction of aging defects that may be caused as a result of etching processes performed by system tools.
    Type: Application
    Filed: April 7, 2014
    Publication date: September 18, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Anchuan Wang, Xinglong Chen, Zihui Li, Hiroshi Hamana, Zhijun Chen, Ching-Mei Hsu, Jiayin Huang, Nitin K. Ingle, Dmitry Lubomirsky, Shankar Venkataraman, Randhir Thakur
  • Publication number: 20140262038
    Abstract: Systems, chambers, and processes are provided for controlling process defects caused by moisture contamination. The systems may provide configurations for chambers to perform multiple operations in a vacuum or controlled environment. The chambers may include configurations to provide additional processing capabilities in combination chamber designs. The methods may provide for the limiting, prevention, and correction of aging defects that may be caused as a result of etching processes performed by system tools.
    Type: Application
    Filed: April 7, 2014
    Publication date: September 18, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Anchuan Wang, Xinglong Chen, Zihui Li, Hiroshi Hamana, Zhijun Chen, Ching-Mei Hsu, Jiayin Huang, Nitin K. Ingle, Dmitry Lubomirsky, Shankar Venkataraman, Randhir Thakur
  • Publication number: 20140252134
    Abstract: An exemplary faceplate may include a conductive plate defining a plurality of apertures. The faceplate may additionally include a plurality of inserts, and each one of the plurality of inserts may be disposed within one of the plurality of apertures. Each insert may define at least one channel through the insert to provide a flow path through the faceplate.
    Type: Application
    Filed: January 23, 2014
    Publication date: September 11, 2014
    Applicant: Applied Materials, Inc.
    Inventors: Xinglong Chen, Dmitry Lubomirsky, Shankar Venkataraman
  • Publication number: 20140248780
    Abstract: Methods of etching a patterned substrate may include flowing an oxygen-containing precursor into a first remote plasma region fluidly coupled with a substrate processing region. The oxygen-containing precursor may be flowed into the region while forming a plasma in the first remote plasma region to produce oxygen-containing plasma effluents. The methods may also include flowing a fluorine-containing precursor into a second remote plasma region fluidly coupled with the substrate processing region while forming a plasma in the second remote plasma region to produce fluorine-containing plasma effluents. The methods may include flowing the oxygen-containing plasma effluents and fluorine-containing plasma effluents into the processing region, and using the effluents to etch a patterned substrate housed in the substrate processing region.
    Type: Application
    Filed: February 21, 2014
    Publication date: September 4, 2014
    Applicant: Applied Materials, Inc.
    Inventors: Nitin K. Ingle, Dmitry Lubomirsky, Xinglong Chen, Shankar Venkataraman
  • Patent number: 8775744
    Abstract: A switching frame buffer is described in which data units within a sequence of time slots, of a frame, may be simultaneously input and output at ports of the switching frame buffer. In one implementation, a write port may receive data units within a single cycle of the switch. A number of memories may be provided, where first selected ones of the memories constitute memory groups and second selected ones of the memories constitute a memory subsets, each of the memory groups including a corresponding one of the memory subsets. The write port may supply each of a number of copies of the data units to a corresponding one of the memory subsets. Multiplexers may be associated with the groups of the memories and a read port may receive one of the copies of a number of the data units from different ones of the multiplexers.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: July 8, 2014
    Inventors: Chung Kuang Chin, Shankar Venkataraman, Swaroop Raghunatha
  • Patent number: 8759223
    Abstract: A method of etching a substrate comprises forming on the substrate, a plurality of double patterning features composed of silicon oxide, silicon nitride, or silicon oxynitride. The substrate having the double patterning features is provided to a process zone. An etching gas comprising nitrogen tri-fluoride, ammonia and hydrogen is energized in a remote chamber. The energized etching gas is introduced into the process zone to etch the double patterning features to form a solid residue on the substrate. The solid residue is sublimated by heating the substrate to a temperature of at least about 100° C.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: June 24, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Kedar Sapre, Jing Tang, Ajay Bhatnagar, Nitin Ingle, Shankar Venkataraman
  • Publication number: 20140158048
    Abstract: The present invention is a method and apparatus for cleaning a chemical vapor deposition (CVD) chamber using cleaning gas energized to a plasma in a gas mixing volume separated by an electrode from a reaction volume of the chamber. In one embodiment, a source of RF power is coupled to a lid of the chamber, while a switch is used to couple a showerhead to ground terminals or the source of RF power.
    Type: Application
    Filed: February 12, 2014
    Publication date: June 12, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Maosheng ZHAO, Juan Carlos ROCHA- ALVAREZ, Inna SHMURUN, Soovo SEN, Mao D. LIM, Shankar VENKATARAMAN, Ju-Hyung LEE
  • Patent number: 8741788
    Abstract: A method of forming a silicon oxide layer is described. The method may include the steps of mixing a carbon-free silicon-and-nitrogen containing precursor with a radical precursor, and depositing a silicon-and-nitrogen containing layer on a substrate. The silicon-and-nitrogen containing layer is then converted to the silicon oxide layer.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: June 3, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Jingmei Liang, Nitin K. Ingle, Shankar Venkataraman
  • Patent number: 8716154
    Abstract: Aspects of the disclosure pertain to methods of depositing conformal silicon oxide multi-layers on patterned substrates. The conformal silicon oxide multi-layers are each formed by depositing multiple sub-layers. Sub-layers are deposited by flowing BIS(DIETHYLAMINO)SILANE (BDEAS) and an oxygen-containing precursor into a processing chamber such that a relatively uniform dielectric growth rate is achieved across the patterned substrate surface. A plasma treatment may follow formation of sub-layers to further improve conformality and to decrease the wet etch rate of the conformal silicon oxide multi-layer film. The deposition of conformal silicon oxide multi-layers grown according to embodiments have a reduced dependence on pattern density while still being suitable for non-sacrificial applications.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: May 6, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Sidharth Bhatia, Paul Edward Gee, Shankar Venkataraman
  • Publication number: 20140097270
    Abstract: Gas distribution assemblies are described including an annular body, an upper plate, and a lower plate. The upper plate may define a first plurality of apertures, and the lower plate may define a second and third plurality of apertures. The upper and lower plates may be coupled with one another and the annular body such that the first and second apertures produce channels through the gas distribution assemblies, and a volume is defined between the upper and lower plates.
    Type: Application
    Filed: March 13, 2013
    Publication date: April 10, 2014
    Applicant: Applied Materials, Inc.
    Inventors: Qiwei Liang, Xinglong Chen, Kien Chuc, Dmitry Lubomirsky, Soonam Park, Jang-Gyoo Yang, Shankar Venkataraman, Toan Tran, Kimberly Hinckley, Saurabh Garg
  • Patent number: 8664127
    Abstract: Aspects of the disclosure pertain to methods of depositing silicon oxide layers on substrates. In embodiments, silicon oxide layers are deposited by flowing a silicon-containing precursor having a Si—O bond, an oxygen-containing precursor and a second silicon-containing precursor, having both a Si—C bond and a Si—N bond, into a semiconductor processing chamber to form a conformal liner layer. Upon completion of the liner layer, a gap fill layer is formed by flowing a silicon-containing precursor having a Si—O bond, an oxygen-containing precursor into the semiconductor processing chamber. The presence of the conformal liner layer improves the ability of the gap fill layer to grow more smoothly, fill trenches and produce a reduced quantity and/or size of voids within the silicon oxide filler material.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: March 4, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Sidharth Bhatia, Hiroshi Hamana, Paul Edward Gee, Shankar Venkataraman
  • Patent number: 8629067
    Abstract: Methods of forming dielectric layers are described. The method may include the steps of mixing a silicon-containing precursor with a radical-nitrogen precursor, and depositing a dielectric layer on a substrate. The radical-nitrogen precursor is formed in a remote plasma by flowing hydrogen (H2) and nitrogen (N2) into the plasma in order to allow adjustment of the nitrogen/hydrogen ratio. The dielectric layer is initially a silicon-and-nitrogen-containing layer which may be converted to a silicon-and-oxygen-containing layer by curing and/or annealing the film in an oxygen-containing environment.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: January 14, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Jingmei Liang, Xiaolin Chen, Matthew L. Miller, Nitin K. Ingle, Shankar Venkataraman