Patents by Inventor Sunil Kumar Singh

Sunil Kumar Singh 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: 20190279896
    Abstract: Some embodiments relate to a semiconductor device manufacturing process. In the process, a substrate is provided, and a sacrificial layer is formed over the substrate. An opening is patterned through the sacrificial layer, and the opening is filled with conductive material. The sacrificial layer is removed while the conductive material is left in place. A first dielectric layer is formed along sidewalls of the conductive material that was left in place.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Inventors: Sunil Kumar Singh, Chung-Ju Lee, Tien-I Bao
  • Patent number: 10312136
    Abstract: Some embodiments relate to a semiconductor device manufacturing process. In the process, a substrate is provided, and a sacrificial layer is formed over the substrate. An opening is patterned through the sacrificial layer, and the opening is filled with conductive material. The sacrificial layer is removed while the conductive material is left in place. A first dielectric layer is formed along sidewalls of the conductive material that was left in place.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: June 4, 2019
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Sunil Kumar Singh, Chung-Ju Lee, Tien-I Bao
  • Publication number: 20190079408
    Abstract: The disclosure is directed to a method for lithographic patterning. The method may include: exposing a photoresist to a radiant energy; developing the photoresist in a first developer, thereby creating an opening within the photoresist including sidewalls having a slant; and developing the photoresist in a second developer immediately after the developing of the photoresist in the first developer, thereby reducing the slant of the sidewalls of the opening. Where the photoresist is a positive tone development (PTD) photoresist, the first developer may include a positive developer, and the second developer may include a negative developer. Where the photoresist is a negative tone development (NTD) photoresist, the first developer may include a negative developer, and the second developer may include a positive developer.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 14, 2019
    Inventors: Sohan Singh Mehta, Mark C. Duggan, Sunil Kumar Singh, Robert Justin Morgan, SherJang Singh, Ravi Prakash Srivastava, Craig D. Higgins, Jason L. Behnke, Vineet Sharma
  • Patent number: 10111427
    Abstract: The present invention relates to a novel formulation, comprising Anacardic acid or its derivatives and phytohormones (1-NAA and GA3), which promotes the increase in fiber yield and improvement in fiber quality. The in-vitro ovule culture assay was used to check the effect of formulation on initiation and development of cotton fiber. Increased initiation and length of cotton fibers was observed in the cultured ovules treated with the formulation which were validated by biochemical assays. The formulation was applied directly onto the at least 70 plants of Gossypium hirsutum genotypes in three replicates with control plants treated with phytohormones only. The formulation was applied by spraying on buds, flowers and bolls. The treated plants show significant increase in boll weight, fiber length, fineness and fiber strength. Thus, the formulation may serve as an important plant growth stimulator leading to the increase in fiber yield and improvement in fiber quality in cotton plants.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 30, 2018
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Samir Viswanath Sawant, Sunil Kumar Singh, Babita Singh, Parthasarathi Bhattacharya
  • Patent number: 10083904
    Abstract: Methodologies and a device for reducing capacitance and improving profile control are provided. Embodiments include forming metal vias in a first dielectric layer; forming a graded interlayer dielectric over the metal vias; forming a metal layer in the graded ILD over one of the metal vias; and forming a hydrogenated amorphous silicon carbon film over the metal layer.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: September 25, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Sunil Kumar Singh, Shesh Mani Pandey
  • Patent number: 10084093
    Abstract: During formation of a trench silicide contact, a sacrificial layer is incorporated into the trench directly over source/drain junctions prior to metallization of the trench. Selective removal of the sacrificial layer widens the trench proximate to the source/drain junctions, increasing the contact area and correspondingly decreasing the contact resistance between the source/drain junctions and a silicide layer.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: September 25, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Shiv Kumar Mishra, Sunil Kumar Singh, Shesh Mani Pandey
  • Patent number: 9960113
    Abstract: A method can include applying a patterned mask over a semiconductor structure, the semiconductor structure having a dielectric layer, forming using the patterned mask a material formation trench intermediate first and second spaced apart metal formations formed in the dielectric layer, and disposing a dielectric material formation in the material formation trench.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: May 1, 2018
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Sunil Kumar Singh, Shesh Mani Pandey
  • Publication number: 20180027811
    Abstract: The present invention relates to a novel formulation, comprising Anacardic acid or its derivatives and phytohormones (1-NAA and GA3), which promotes the increase in fiber yield and improvement in fiber quality. The in-vitro ovule culture assay was used to check the effect of formulation on initiation and development of cotton fiber. Increased initiation and length of cotton fibers was observed in the cultured ovules treated with the formulation which were validated by biochemical assays. The formulation was applied directly onto the at least 70 plants of Gossypium hirsutum genotypes in three replicates with control plants treated with phytohormones only. The formulation was applied by spraying on buds, flowers and bolls. The treated plants show significant increase in boll weight, fiber length, fineness and fiber strength. Thus, the formulation may serve as an important plant growth stimulator leading to the increase in fiber yield and improvement in fiber quality in cotton plants.
    Type: Application
    Filed: January 28, 2016
    Publication date: February 1, 2018
    Applicant: Council of Scientific & Industrial Research
    Inventors: Samir Viswanath SAWANT, Sunil Kumar SINGH, Babit SINGH, Parthasarathi BHATTACHARYA
  • Publication number: 20180033684
    Abstract: Some embodiments relate to a semiconductor device manufacturing process. In the process, a substrate is provided, and a sacrificial layer is formed over the substrate. An opening is patterned through the sacrificial layer, and the opening is filled with conductive material. The sacrificial layer is removed while the conductive material is left in place. A first dielectric layer is formed along sidewalls of the conductive material that was left in place.
    Type: Application
    Filed: October 6, 2017
    Publication date: February 1, 2018
    Inventors: Sunil Kumar Singh, Chung-Ju Lee, Tien-I Bao
  • Publication number: 20170294378
    Abstract: A method can include applying a patterned mask over a semiconductor structure, the semiconductor structure having a dielectric layer, forming using the patterned mask a material formation trench intermediate first and second spaced apart metal formations formed in the dielectric layer, and disposing a dielectric material formation in the material formation trench.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 12, 2017
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Sunil Kumar SINGH, Shesh Mani PANDEY
  • Patent number: 9786549
    Abstract: A method of forming a dual damascene metal interconnect for a semiconductor device. The method includes forming a layer of low-k dielectric, forming vias through the low-k dielectric layer, depositing a sacrificial layer, forming trenches through the sacrificial layer, filling the vias and trenches with metal, removing the sacrificial layer, then depositing an extremely low-k dielectric layer to fill between the trenches. The method allows the formation of an extremely low-k dielectric layer for the second level of the dual damascene structure while avoiding damage to that layer by such processes as trench etching and trench metal deposition. The method has the additional advantage of avoiding an etch stop layer between the via level dielectric and the trench level dielectric.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: October 10, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Sunil Kumar Singh, Chung-Ju Lee, Tien-I Bao
  • Patent number: 9741605
    Abstract: A method of reducing defects in and improving reliability of Back-End-Of-Line (BEOL) metal fill includes providing a starting metallization structure for semiconductor device(s), the metallization structure including a bottom layer of contact(s) surrounded by a dielectric material. The starting metallization structure further includes an etch-stop layer over the bottom layer, a layer of dielectric material over the etch-stop layer, a first layer of hard mask material over the dielectric layer, a layer of work function hard mask material over the first hard mask layer, a second layer of hard mask material over the work function hard mask layer, via(s) to the first hard mask layer and other via(s) into the etch-stop layer. The method further includes protecting the other via(s) while removing the second hard mask layer and the layer of work function hard mask material, and filling the vias with metal.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: August 22, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventor: Sunil Kumar Singh
  • Patent number: 9711346
    Abstract: A method can include applying a patterned mask over a semiconductor structure, the semiconductor structure having a dielectric layer, forming using the patterned mask a material formation trench intermediate first and second spaced apart metal formations formed in the dielectric layer, and disposing a dielectric material formation in the material formation trench.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: July 18, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Sunil Kumar Singh, Shesh Mani Pandey
  • Publication number: 20170200674
    Abstract: Methodologies and a device for reducing capacitance and improving profile control are provided. Embodiments include forming metal vias in a first dielectric layer; forming a graded interlayer dielectric over the metal vias; forming a metal layer in the graded ILD over one of the metal vias; and forming a hydrogenated amorphous silicon carbon film over the metal layer.
    Type: Application
    Filed: January 12, 2016
    Publication date: July 13, 2017
    Inventors: Sunil Kumar Singh, Shesh Mani Pandey
  • Publication number: 20170186688
    Abstract: Metal filling processes for semiconductor devices and methods of fabricating semiconductor devices. One method includes, for instance: obtaining a wafer with at least one contact opening; depositing a metal alloy into at least a portion of the at least one contact opening; separating the metal alloy into a first metal layer and a second metal layer; depositing a barrier stack over the wafer; forming at least one trench opening; forming at least one via opening; and depositing at least one metal material into the trench openings and via openings. An intermediate semiconductor device is also disclosed.
    Type: Application
    Filed: March 16, 2017
    Publication date: June 29, 2017
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Sunil Kumar SINGH, Ravi Prakash SRIVASTAVA, Nicholas Robert STOKES
  • Patent number: 9691654
    Abstract: Back end of line via formation for semiconductor devices and methods of fabricating the semiconductor devices. One method includes, for instance: obtaining a wafer with a substrate and at least one contact in the substrate; depositing at least one lithography stack over the substrate; performing lithography to pattern at least one via opening; depositing a block co-polymer coating over the wafer into the at least one via opening; performing an ashing to remove excess block co-polymer material and form block co-polymer caps; and performing a thermal bake to separate the block co-polymer caps into a first material and a second material. An intermediate semiconductor device is also disclosed.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: June 27, 2017
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Sunil Kumar Singh, Sohan Singh Mehta, Ravi Prakash Srivastava
  • Publication number: 20170178953
    Abstract: Back end of line via formation for semiconductor devices and methods of fabricating the semiconductor devices. One method includes, for instance: obtaining a wafer with a substrate and at least one contact in the substrate; depositing at least one lithography stack over the substrate; performing lithography to pattern at least one via opening; depositing a block co-polymer coating over the wafer into the at least one via opening; performing an ashing to remove excess block co-polymer material and form block co-polymer caps; and performing a thermal bake to separate the block co-polymer caps into a first material and a second material. An intermediate semiconductor device is also disclosed.
    Type: Application
    Filed: December 22, 2015
    Publication date: June 22, 2017
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Sunil Kumar SINGH, Sohan Singh MEHTA, Ravi Prakash SRIVASTAVA
  • Patent number: 9613909
    Abstract: Metal filling processes for semiconductor devices and methods of fabricating semiconductor devices. One method includes, for instance: obtaining a wafer with at least one contact opening; depositing a metal alloy into at least a portion of the at least one contact opening; separating the metal alloy into a first metal layer and a second metal layer; depositing a barrier stack over the wafer; forming at least one trench opening; forming at least one via opening; and depositing at least one metal material into the trench openings and via openings. An intermediate semiconductor device is also disclosed.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: April 4, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Sunil Kumar Singh, Ravi Prakash Srivastava, Nicholas Robert Stokes
  • Patent number: 9593119
    Abstract: The present invention provides a process for the preparation of linagliptin, a compound of Formula I, the process comprising deprotecting a compound of Formula II wherein R1 and R2 together with the nitrogen to which they are attached form a phthalimido group, wherein the aromatic ring of the phthalimido group is substituted with one or more R3 substituents selected from the group consisting of halogen, alkyl, nitro and amino; or R1 is H and R2 is selected from the group consisting of trialkylsilyl, 2-trialkylsilylethoxycarbamates, acetyl, trihaloacetyl, 9-fluorenylmethoxycarbonyl, trityl, alkylsulfonyl, arylsulfonyl, diphenylphosphine and sulfonylethoxycarbonyl.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: March 14, 2017
    Assignee: GLENMARK PHARMACEUTICALS LIMITED
    Inventors: Sunil Kumar Singh, Sachin Srivastava, Shekhar Bhaskar Bhirud
  • Patent number: 9576894
    Abstract: Integrated circuits and methods for fabricating integrated circuits are provided. In one example, a method for fabricating an integrated circuit includes depositing an organic dielectric material overlying a semiconductor substrate for forming an organic interlayer dielectric (OILD) layer. An opening is formed in the OILD layer and a conductive metal fill is deposited in the opening for forming a metal line and/or a via.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: February 21, 2017
    Assignee: GLOBALFOUNDRIES, INC.
    Inventors: Sunil Kumar Singh, Ravi Prakash Srivastava, Xusheng Wu, Akshey Sehgal, Teck Jung Tang