Patents by Inventor Kishore K. Chakravorty

Kishore K. Chakravorty 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: 7851109
    Abstract: Low stress reticle pellicle assemblies. In accordance with certain embodiments of the present invention, a pellicle frame of reduced stiffness is employed to reduce the stress a pellicle frame induces in a reticle plate. In other embodiments, a pellicle frame of reduced adhesive surface is employed to reduce the stress a pellicle frame induces in a reticle plate. In accordance with still other embodiments, a stress compensating frame is employed to reduce the cumulative stresses in an assembly comprising the reticle plate, pellicle and stress compensating frame.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: December 14, 2010
    Assignee: Intel Corporation
    Inventors: Kishore K. Chakravorty, Frank E. Abboud, Henry Yun
  • Publication number: 20090246644
    Abstract: Low stress reticle pellicle assemblies. In accordance with certain embodiments of the present invention, a pellicle frame of reduced stiffness is employed to reduce the stress a pellicle frame induces in a reticle plate. In other embodiments, a pellicle frame of reduced adhesive surface is employed to reduce the stress a pellicle frame induces in a reticle plate. In accordance with still other embodiments, a stress compensating frame is employed to reduce the cumulative stresses in an assembly comprising the reticle plate, pellicle and stress compensating frame.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Inventors: Kishore K. Chakravorty, Frank E. Abboud, Henry Yun
  • Patent number: 7535728
    Abstract: To reduce switching noise, the power supply terminals of an integrated circuit die are coupled to the respective terminals of at least one embedded capacitor in a multilayer ceramic/organic hybrid substrate. In one embodiment, a ceramic portion of the substrate includes at least one capacitor formed of a high permittivity layer sandwiched between conductive planes. An organic portion of the substrate includes suitable routing and fan-out of power and signal conductors. The organic portion includes a build-up of multiple layers of organic material overlying the ceramic portion. Also described are an electronic system, a data processing system, and various methods of manufacture.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: May 19, 2009
    Assignee: Intel Corporation
    Inventors: Kishore K. Chakravorty, Paul H. Wermer, David G. Figueroa, Debabrata Gupta
  • Publication number: 20090098469
    Abstract: Design rules are described for a phase alternating shift mask for minimum chrome width and maximum segment length, where an embodiment employs during a cleaning process of the mask a megasonic power of 50 Watts at 1 MHz, and 30 Watts at 3 MHz. Some embodiments utilize an dry etch Carbon Tetrafluoride and Dioxygen based process. Other embodiments are described and claimed.
    Type: Application
    Filed: October 12, 2007
    Publication date: April 16, 2009
    Inventors: Kishore K. Chakravorty, Sven Henrichs, Yi-Ping Liu, Henry Yun, Brian Irving, Alexander Tritchkov, Karmen Yung
  • Patent number: 7418163
    Abstract: An integrated optoelectrical package for optoelectrical integrated circuits (ICs) is disclosed. The package includes a package substrate having contact receiving members on an upper surface. The contact receiving members are electrically connected to contacts on the lower surface. An optoelectronic receiver package and an optoelectronic transmitter package are each electrically mounted to respective first and second subsets of the contact receiving members. Input and output waveguide arrays are formed atop the substrate package and are optically coupled to the optoelectronic receiver package and the optoelectronic transmitter package, respectively. The contacts on the lower surface of the package substrate are designed to contact and engage the contact receiving members of a standard printed circuit board (PCB).
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: August 26, 2008
    Inventors: Kishore K. Chakravorty, Joseph F. Ahadian, Johanna Swan, Thomas P. Thomas, Brandon C. Barnett, Ian Young
  • Patent number: 7339798
    Abstract: To reduce switching noise, the power supply terminals of an integrated circuit die are coupled to the respective terminals of at least one capacitor embedded in an interposer that lies between the die and a substrate. In an embodiment, the interposer is a multilayer ceramic structure that couples power and signal conductors on the die to corresponding conductors on the substrate. The capacitor is formed of at least one high permittivity layer and in an embodiment comprises several high permittivity layers interleaved with conductive layers. Alternatively, the capacitor can comprise at least one embedded discrete capacitor. Also described are an electronic system, a data processing system, and various methods of manufacture.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: March 4, 2008
    Assignee: Intel Corporation
    Inventor: Kishore K. Chakravorty
  • Patent number: 7120031
    Abstract: To reduce switching noise, the power supply terminals of an integrated circuit die are coupled to the respective terminals of at least one embedded capacitor in a multilayer ceramic/organic hybrid substrate. In one embodiment, a ceramic portion of the substrate includes at least one capacitor formed of a high permittivity layer sandwiched between conductive planes. An organic portion of the substrate includes suitable routing and fan-out of power and signal conductors. The organic portion includes a build-up of multiple layers of organic material overlying the ceramic portion. Also described are an electronic system, a data processing system, and various methods of manufacture.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: October 10, 2006
    Assignee: Intel Corporation
    Inventors: Kishore K. Chakravorty, Paul H. Wermer, David G. Figueroa, Debabrata Gupta
  • Patent number: 7112285
    Abstract: Methods are provided for fabricating plated through hole conductive core substrate which eliminate the secondary step of producing a through hole in the dielectric material plugging the core through hole. In one embodiment of the method in accordance with the invention, a two-step lamination process is provided. One side of the conductive core is provided with a dielectric laminate, a portion of which flows into and coats the core through hole wall. Excess dielectric material flows out of the core through hole preventing plugging. Similarly, the other side of the conductive core is provided with a dielectric laminate, a portion of which flows into the core through hole completing the coating of the core through hole wall forming a dielectric liner. The dielectric liner insulates the conductive core through hole wall from a conductive layer deposited onto the dielectric liner forming a plated through hole.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: September 26, 2006
    Assignee: Intel Corporation
    Inventor: Kishore K. Chakravorty
  • Patent number: 7049704
    Abstract: A package allowing both electrical and optical coupling between one or more integrated circuits and a printed circuit board (PCB) has an optical waveguide structure in addition to electrical connections. An optically active device is flip-chip bonded directly to an integrated circuit using solder bump technology. The optically active device has a lens directly attached to it to facilitate optical coupling to the optical waveguide. The integrated circuit is flip-chip bonded to a Ball Grid Array (BGA) package. The BGA package is bonded to the PCB using solder reflow technology.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: May 23, 2006
    Assignee: Intel Corporation
    Inventors: Kishore K. Chakravorty, Johanna Swan, Brandon C. Barnett, Joseph F. Ahadian, Thomas P. Thomas, Ian Young
  • Patent number: 6970362
    Abstract: To reduce switching noise, the power supply terminals of an integrated circuit die are coupled to the respective terminals of at least one capacitor embedded in an interposer that lies between the die and a substrate. In an embodiment, the interposer is a multilayer ceramic structure that couples power and signal conductors on the die to corresponding conductors on the substrate. The capacitor is formed of at least one high permittivity layer and in an embodiment comprises several high permittivity layers interleaved with conductive layers. Alternatively, the capacitor can comprise at least one embedded discrete capacitor. Also described are an electronic system, a data processing system, and various methods of manufacture.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: November 29, 2005
    Assignee: Intel Corporation
    Inventor: Kishore K. Chakravorty
  • Patent number: 6963483
    Abstract: The various embodiments of coaxial capacitors are self-aligned and formed in a via, including blind vias, buried vias and plated through holes. The coaxial capacitors are adapted to utilize the plating of a plated via as a first electrode. The dielectric layer is formed to overlie the first electrode while leaving a portion of the via unfilled. A second electrode is formed in the portion of the via left unfilled by the dielectric layer. Such coaxial capacitors are suited for use in decoupling and power dampening applications to reduce signal and power noise and/or reduce power overshoot and droop in electronic devices. For such applications, it is generally expected that a plurality of coaxial capacitors, often numbering in the thousands, will be coupled in parallel in order to achieve the desired level of capacitance.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: November 8, 2005
    Assignee: Intel Corporation
    Inventors: Kishore K. Chakravorty, Thomas S. Dory, C. Michael Garner
  • Patent number: 6844663
    Abstract: A structure for a multilayer electrode. Specifically, in one embodiment, a multilayer electrode for a flat panel display device is disclosed. The multilayer electrode comprises a metal alloy layer and a protective layer. The metal alloy layer includes neodymium having a concentration of between greater than three atomic percent and six atomic percent. The protective layer is disposed above the metal alloy layer to form a multilayer stack. The multilayer stack is etched to form the multilayer electrode.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: January 18, 2005
    Assignee: Candescent Intellectual Property
    Inventors: Jueng Gil Lee, Christopher J. Spindt, Johan Knall, Matthew A. Bonn, Kishore K. Chakravorty
  • Publication number: 20040238942
    Abstract: To reduce switching noise, the power supply terminals of an integrated circuit die are coupled to the respective terminals of at least one embedded capacitor in a multilayer ceramic/organic hybrid substrate. In one embodiment, a ceramic portion of the substrate includes at least one capacitor formed of a high permittivity layer sandwiched between conductive planes. An organic portion of the substrate includes suitable routing and fan-out of power and signal conductors. The organic portion includes a build-up of multiple layers of organic material overlying the ceramic portion. Also described are an electronic system, a data processing system, and various methods of manufacture.
    Type: Application
    Filed: July 2, 2004
    Publication date: December 2, 2004
    Applicant: Intel Corporation
    Inventors: Kishore K. Chakravorty, Paul H. Wermer, David G. Figueroa, Debabrata Gupta
  • Publication number: 20040208416
    Abstract: A package allowing both electrical and optical coupling between one or more integrated circuits and a printed circuit board (PCB) has an optical waveguide structures in addition to electrical connections. An optically active device is flip-chip bonded directly to an integrated circuit using solder bump technology. The optically active device has a lens directly attached to it to facilitate optical coupling to the optical waveguide. The integrated circuit is flip-chip bonded to a Ball Grid Array (BGA) package. The BGA package is bonded to the PCB using solder reflow technology.
    Type: Application
    Filed: May 6, 2004
    Publication date: October 21, 2004
    Applicant: INTEL CORPORATION
    Inventors: Kishore K. Chakravorty, Johanna Swan, Brandon C. Barnett, Joseph F. Ahadian, Thomas P. Thomas, Ian Young
  • Patent number: 6775150
    Abstract: To reduce switching noise, the power supply terminals of an integrated circuit die are coupled to the respective terminals of at least one embedded capacitor in a multilayer ceramic/organic hybrid substrate. In one embodiment, a ceramic portion of the substrate includes at least one capacitor formed of a high permittivity layer sandwiched between conductive planes. An organic portion of the substrate includes suitable routing and fan-out of power and signal conductors. The organic portion includes a build-up of multiple layers of organic material overlying the ceramic portion. Also described are an electronic system, a data processing system, and various methods of manufacture.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: August 10, 2004
    Assignee: Intel Corporation
    Inventors: Kishore K. Chakravorty, Paul H. Wermer, David G. Figueroa, Debabrata Gupta
  • Patent number: 6764366
    Abstract: An electrode structure for a display that includes lower electrodes and upper electrodes. In one embodiment, lower and upper electrodes are formed of either an aluminum alloy or a silver alloy. In another embodiment, upper and lower electrodes are formed using a metal alloy layer over which a cladding layer is deposited. A silicon nitride passivation layer is used to protect the upper electrodes from damage in subsequent process steps. Various other materials and structures are also disclosed that protect the upper electrodes from damage in subsequent process steps.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: July 20, 2004
    Assignees: Candescent Intellectual Property Services, Inc., Candescent Technologies Corporation
    Inventors: Jueng Gil Lee, Christopher J. Spindt, Johan Knall, Matthew A. Bonn, Kishore K. Chakravorty
  • Patent number: 6754407
    Abstract: A package allowing both electrical and optical coupling between one or more integrated circuits and a printed circuit board (PCB) has an optical waveguide structures in addition to electrical connections. An optically active device is flip-chip bonded directly to an integrated circuit using solder bump technology. The optically active device has a lens attached to it to facilitate optical coupling to the optical waveguide. The integrated circuit is flip-chip bonded to a Ball Grid Array (BGA) package. The BGA package is bonded to the PCB using solder reflow technology.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: June 22, 2004
    Assignee: Intel Corporation
    Inventors: Kishore K. Chakravorty, Johanna Swan, Brandon C. Barnett, Joseph F. Ahadian, Thomas P. Thomas, Ian Young
  • Publication number: 20040110382
    Abstract: Methods are provided for fabricating plated through hole conductive core substrate which eliminate the secondary step of producing a through hole in the dielectric material plugging the core through hole. In one embodiment of the method in accordance with the invention, a two-step lamination process is provided. One side of the conductive core is provided with a dielectric laminate, a portion of which flows into and coats the core through hole wall. Excess dielectric material flows out of the core through hole preventing plugging. Similarly, the other side of the conductive core is provided with a dielectric laminate, a portion of which flows into the core through hole completing the coating of the core through hole wall forming a dielectric liner. The dielectric liner insulates the conductive core through hole wall from a conductive layer deposited onto the dielectric liner forming a plated through hole.
    Type: Application
    Filed: December 5, 2002
    Publication date: June 10, 2004
    Inventor: Kishore K. Chakravorty
  • Patent number: 6710525
    Abstract: An electrode structure for a display that includes lower electrodes and upper electrodes. In one embodiment, lower and upper electrodes are formed of either an aluminum alloy or a silver alloy. In another embodiment, upper and lower electrodes are formed using a metal alloy layer over which a cladding layer is deposited. A silicon nitride passivation layer is used to protect the upper electrodes from damage in subsequent process steps. Various other materials and structures are also disclosed that protect the upper electrodes from damage in subsequent process steps.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: March 23, 2004
    Assignees: Candescent Technologies Corporation, Candescent Intellectual Property Services, Inc.
    Inventors: Jueng Gil Lee, Christopher J. Spindt, Johan Knall, Matthew A. Bonn, Kishore K. Chakravorty
  • Publication number: 20030185484
    Abstract: An integrated optoelectrical package for optoelectrical integrated circuits (ICs) is disclosed. The package includes a package substrate having contact receiving members on an upper surface. The contact receiving members are electrically connected to contacts on the lower surface. An optoelectronic receiver package and an optoelectronic transmitter package are each electrically mounted to respective first and second subsets of the contact receiving members. Input and output waveguide arrays are formed atop the substrate package and are optically coupled to the optoelectronic receiver package and the optoelectronic transmitter package, respectively. The contacts on the lower surface of the package substrate are designed to contact and engage the contact receiving members of a standard printed circuit board (PCB).
    Type: Application
    Filed: March 28, 2002
    Publication date: October 2, 2003
    Applicant: Intel Corporation
    Inventors: Kishore K. Chakravorty, Joseph F. Ahadian, Johanna Swan, Thomas P. Thomas, Brandon C. Barnett, Ian Young