Patents by Inventor Krishna Seshan

Krishna Seshan 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: 7012304
    Abstract: An integrated circuit including a performance circuit occupying a first area of an integrated circuit substrate and a protection circuit coupled to the performance circuit and occupying a second area of an integrated circuit substrate separate from the first area. Also, a method of forming an integrated circuit including the steps of: Forming a performance circuit occupying a first area of an integrated circuit substrate, forming a protection circuit occupying a second area of an integrated circuit separate from the first area, and coupling the protection circuit to the performance circuit.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: March 14, 2006
    Assignee: Intel Corporation
    Inventors: Sanjay Dabral, Krishna Seshan
  • Publication number: 20060033211
    Abstract: An electrical device includes electrical contact pads, a supply voltage bus and an interconnection circuit. The electrical contact pads receive a supply voltage, and the bus is electrically connected to the electrical contact pads. For each electrical contact pad, the interconnection circuit forms a redundant connection between the bus and the electrical contact pad. The electrical device may include a passivation layer that includes windows to establish electrical contact between the electrical contact pads and the supply voltage bus. This window may be elongated in a path that is generally aligned with the path along which the supply voltage bus extends.
    Type: Application
    Filed: August 15, 2005
    Publication date: February 16, 2006
    Inventor: Krishna Seshan
  • Publication number: 20060033197
    Abstract: An electrical device includes electrical contact pads, a supply voltage bus and an interconnection circuit. The electrical contact pads receive a supply voltage, and the bus is electrically connected to the electrical contact pads. For each electrical contact pad, the interconnection circuit forms a redundant connection between the bus and the electrical contact pad. The electrical device may include a passivation layer that includes windows to establish electrical contact between the electrical contact pads and the supply voltage bus. This window may be elongated in a path that is generally aligned with the path along which the supply voltage bus extends.
    Type: Application
    Filed: August 15, 2005
    Publication date: February 16, 2006
    Inventor: Krishna Seshan
  • Patent number: 6979896
    Abstract: An electrical device includes electrical contact pads, a supply voltage bus and an interconnection circuit. The electrical contact pads receive a supply voltage, and the bus is electrically connected to the electrical contact pads. For each electrical contact pad, the interconnection circuit forms a redundant connection between the bus and the electrical contact pad. The electrical device may include a passivation layer that includes windows to establish electrical contact between the electrical contact pads and the supply voltage bus. This window may be elongated in a path that is generally aligned with the path along which the supply voltage bus extends.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: December 27, 2005
    Assignee: Intel Corporation
    Inventor: Krishna Seshan
  • Publication number: 20050247931
    Abstract: Selectable capacitors are used to modify performance characteristics of functional circuit elements of an integrated circuit (IC). In an embodiment, the decoupling capacitors are implemented as additional or alternative mounting pads on a surface of the IC. At least one selectable capacitor is provided for each IC circuit element, such as a logic network, whose operational characteristic(s) is predicted to be and is actually identified as sub-optimal through IC testing, particularly following a process change, a mask shrink, operation of the IC at higher clock frequency, or the like. Expensive redesign is avoided by selectively coupling capacitors into the IC circuit element as needed, under control of selector logic that is responsive to control signals. Methods of operation, as well as application of the apparatus to an electronic assembly and an electronic system, are also described.
    Type: Application
    Filed: July 19, 2005
    Publication date: November 10, 2005
    Inventor: Krishna Seshan
  • Patent number: 6937458
    Abstract: Selectable capacitors are used to modify performance characteristics of functional circuit elements of an integrated circuit (IC). In one embodiment, the decoupling capacitors are implemented as additional or alternative mounting pads on a surface of the IC. At least one selectable capacitor is provided for each IC circuit element, such as a logic network, whose operational characteristic(s) is predicted to be and is actually identified as sub-optimal through IC testing, particularly following a process change, a mask shrink, operation of the IC at higher clock frequency, or the like. Expensive redesign is avoided by selectively coupling capacitors into the IC circuit element as needed, under control of selector logic that is responsive to control signals. Methods of operation, as well as application of the apparatus to an electronic assembly and an electronic system, are also described.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: August 30, 2005
    Assignee: Intel Corporation
    Inventor: Krishna Seshan
  • Publication number: 20050179109
    Abstract: An apparatus and methods for modifying isolation structure configurations for MOS devices to either induce or reduce tensile and/or compressive stresses on an active area of the MOS devices. The isolation structure configurations according to the present invention include the use of low-modulus and high-modulus, dielectric materials, as well as, tensile stress-inducing and compressive stress-inducing, dielectric materials, and further includes altering the depth of the isolation structure and methods for modifying isolation structure configurations, such as trench depth and isolation materials used, to modify (i.e., to either induce or reduce) tensile and/or compressive stresses on an active area of a semiconductor device.
    Type: Application
    Filed: March 28, 2005
    Publication date: August 18, 2005
    Inventors: Qing Ma, Jin Lee, Harry Fujimoto, Changhong Dai, Shiuh-Wuu Lee, Travis Eiles, Krishna Seshan
  • Patent number: 6930379
    Abstract: An electrical device includes electrical contact pads, a supply voltage bus and an interconnection circuit. The electrical contact pads receive a supply voltage, and the bus is electrically connected to the electrical contact pads. For each electrical contact pad, the interconnection circuit forms a redundant connection between the bus and the electrical contact pad. The electrical device may include a passivation layer that includes windows to establish electrical contact between the electrical contact pads and the supply voltage bus. This window may be elongated in a path that is generally aligned with the path along which the supply voltage bus extends.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: August 16, 2005
    Assignee: Intel Corporation
    Inventor: Krishna Seshan
  • Publication number: 20050158980
    Abstract: The present invention discloses a novel layout and process for a device with segmented BLM for the I/Os. In a first embodiment, each BLM is split into two segments. The segments are close to each other and connected to the same overlying bump. In a second embodiment, each BLM is split into more than two segments. In a third embodiment, each segment is electrically connected to more than one underlying via. In a fourth embodiment, each segment is electrically connected to more than one underlying bond pad.
    Type: Application
    Filed: February 10, 2005
    Publication date: July 21, 2005
    Inventor: Krishna Seshan
  • Patent number: 6914658
    Abstract: A method for fabricating a microelectronic image projection device. One or more nitride dams are formed upon the substrate of the device surrounding the active pixel area. The nitride dams help to contain the liquid crystal and confine the epoxy sealant. In alternative embodiments one or more nitride pillars are formed on the substrate to support the cover glass and maintain the distance between the cover glass and the active pixel area of the substrate. The nitride dams and pillars may be formed on the substrate through an ion implantation method in which HDP nitride is implanted with, for example, silicon ions. The ion implantation causes those areas of the nitride that are implanted with ions to etch more slowly than those areas that are not implanted with ions. This etch rate differential allows formation of the nitride formations with a non-contact single mask etching process.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: July 5, 2005
    Assignee: Intel Corporation
    Inventors: Krishna Seshan, Chaoyang Li, Geoffery L. Bakker, Lawrence Dass
  • Patent number: 6876053
    Abstract: An apparatus and methods for modifying isolation structure configurations for MOS devices to either induce or reduce tensile and/or compressive stresses on an active area of the MOS devices. The isolation structure configurations according to the present invention include the use of low-modulus and high-modulus, dielectric materials, as well as, tensile stress-inducing and compressive stress-inducing, dielectric materials, and further includes altering the depth of the isolation structure and methods for modifying isolation structure configurations, such as trench depth and isolation materials used, to modify (i.e., to either induce or reduce) tensile and/or compressive stresses on an active area of a semiconductor device.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: April 5, 2005
    Assignee: Intel Corporation
    Inventors: Qing Ma, Jin Lee, Harry Fujimoto, Changhong Dai, Shiuh-Wuu Lee, Travis Eiles, Krishna Seshan
  • Publication number: 20050070119
    Abstract: Embodiments of the present invention form a weight-compensating/tuning layer on a structure (e.g., a silicon wafer with one or more layers of material (e.g., films)) having variations in its surface topology. The variations in surface topology take the form of thick and thin regions of materials. The weight-compensating/tuning layer includes narrow and wide regions corresponding to the thick and thin regions, respectively.
    Type: Application
    Filed: September 29, 2003
    Publication date: March 31, 2005
    Inventors: Theodore Doros, Krishna Seshan
  • Publication number: 20040192019
    Abstract: The present invention relates to a device that includes a low-ohmic test. The device includes a metallization copper pad such as metal-six, a metal first film such as Ni that is disposed above the metallization copper pad, and a metal second film such as Au that is disposed above the metal first film. The present invention also relates to a wire-bonding process, and to a method of pulling a first wire bond and making a second wire bond.
    Type: Application
    Filed: April 5, 2004
    Publication date: September 30, 2004
    Applicant: Intel Corporation
    Inventors: Krishna Seshan, Kuljeet Singh
  • Publication number: 20040125247
    Abstract: A method for fabricating a microelectronic image projection device. One or more nitride dams are formed upon the substrate of the device surrounding the active pixel area. The nitride dams help to contain the liquid crystal and confine the epoxy sealant. In alternative embodiments one or more nitride pillars are formed on the substrate to support the cover glass and maintain the distance between the cover glass and the active pixel area of the substrate. The nitride dams and pillars may be formed on the substrate through an ion implantation method in which HDP nitride is implanted with, for example, silicon ions. The ion implantation causes those areas of the nitride that are implanted with ions to etch more slowly than those areas that are not implanted with ions. This etch rate differential allows formation of the nitride formations with a non-contact single mask etching process.
    Type: Application
    Filed: December 26, 2002
    Publication date: July 1, 2004
    Inventors: Krishna Seshan, Chaoyang Li, Geoffrey L. Bakker, Lawrence Dass
  • Publication number: 20040108596
    Abstract: Selectable capacitors are used to modify performance characteristics of functional circuit elements of an integrated circuit (IC). In one embodiment, the decoupling capacitors are implemented as additional or alternative mounting pads on a surface of the IC. At least one selectable capacitor is provided for each IC circuit element, such as a logic network, whose operational characteristic(s) is predicted to be and is actually identified as sub-optimal through IC testing, particularly following a process change, a mask shrink, operation of the IC at higher clock frequency, or the like. Expensive redesign is avoided by selectively coupling capacitors into the IC circuit element as needed, under control of selector logic that is responsive to control signals. Methods of operation, as well as application of the apparatus to an electronic assembly and an electronic system, are also described.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 10, 2004
    Applicant: Intel Corporation
    Inventor: Krishna Seshan
  • Publication number: 20040094836
    Abstract: In one embodiment, the present invention includes an apparatus having a metal layer with a pad disposed above a substrate; and a cap disposed above the metal layer having a first portion to provide for contact with a probe and a second portion to provide a bonding surface, and the cap is electrically coupled to the pad.
    Type: Application
    Filed: November 20, 2002
    Publication date: May 20, 2004
    Inventors: Krishna Seshan, Kevin Jeng, Haiping Dun
  • Patent number: 6734544
    Abstract: An integrated circuit package is disclosed. According to one embodiment of the present invention an integrated circuit is formed in a die having an edge, and a plurality of non-I/O columns are bonded between a substrate and the die a selected distance from the edge of the die.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: May 11, 2004
    Assignee: Intel Corporation
    Inventors: Soupin Yan, Krishna Seshan
  • Publication number: 20040065948
    Abstract: An electrical device includes electrical contact pads, a supply voltage bus and an interconnection circuit. The electrical contact pads receive a supply voltage, and the bus is electrically connected to the electrical contact pads. For each electrical contact pad, the interconnection circuit forms a redundant connection between the bus and the electrical contact pad. The electrical device may include a passivation layer that includes windows to establish electrical contact between the electrical contact pads and the supply voltage bus. This window may be elongated in a path that is generally aligned with the path along which the supply voltage bus extends.
    Type: Application
    Filed: October 7, 2003
    Publication date: April 8, 2004
    Inventor: Krishna Seshan
  • Patent number: 6715663
    Abstract: The present invention relates to a device that includes a low-ohmic test. The device includes a metallization copper pad such as metal-six, a metal first film such as Ni that is disposed above the metallization copper pad, and a metal second film such as Au that is disposed above the metal first film. The present invention also relates to a wire-bonding process, and to a method of pulling a first wire bond and making a second wire bond.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: April 6, 2004
    Assignee: Intel Corporation
    Inventors: Krishna Seshan, Kuljeet Singh
  • Publication number: 20040038475
    Abstract: A method and apparatus for a linearized output driver and terminator is described. In one embodiment the method includes forming a gate electrode on a substrate, the portion of the substrate covered by the gate electrode defining a channel. The method further includes forming a first source/drain doped region on laterally opposed sides of the gate electrode in the substrate. The method also includes forming a spacer on laterally opposed sides of the gate electrode on the substrate. The method also includes forming a linearized drain contact region at a location within the first source/drain doped region sufficiently distant from the gate electrode to define a series resistor in the first source/drain doped region disposed between the gate electrode and the linearized drain contact area based on an expected resistivity of the source/drain doped region, the series resistor coupled electrically to the channel.
    Type: Application
    Filed: March 20, 2003
    Publication date: February 26, 2004
    Applicant: Intel Corporation
    Inventors: Sanjay Dabral, Krishna Seshan