Patents by Inventor Anand Krishnan

Anand Krishnan 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: 20070210421
    Abstract: The invention provides, one aspect, a method of fabricating a semiconductor device. In one aspect, the method includes forming a carbide layer over a gate electrode and depositing a pre-metal dielectric layer over the carbide layer. The method provides a significant reduction in NBTI drift.
    Type: Application
    Filed: March 13, 2006
    Publication date: September 13, 2007
    Applicant: Texas Instruments Inc.
    Inventors: Haowen Bu, Anand Krishnan, Ting Tsui, William Dostalik, Rajesh Khamankar
  • Publication number: 20060287958
    Abstract: The present invention provides safe and secure application distribution and execution by providing systems and methods that test an application to ensure that it satisfies predetermined criteria associated with the environment in which it will execute. Furthermore, by using rules and permission lists, application removal, and a modification detection technique, such as digital signatures, the present invention provides mechanisms to safely distribute and execute tested, or untested, applications by determining whether the application has been modified, determining if it has permission to execute in a given wireless device environment, and removing the application should it be desirable to do so.
    Type: Application
    Filed: August 28, 2006
    Publication date: December 21, 2006
    Inventors: Laurence LUNDBLADE, Marc PHILLIPS, Brian MINEAR, Yan ZHUANG, Anand KRISHNAN, Stephen SPRIGG, Mazen CHMAYTELLI, Mitchell OLIVER, Gerald HOREL, Karen CROSSLAND
  • Patent number: 7099663
    Abstract: The present invention provides safe and secure application distribution and execution by providing systems and methods that test an application to ensure that it satisfies predetermined criteria associated with the environment in which it will execute. Furthermore, by using rules and permission lists, application removal, and a modification detection technique, such as digital signatures, the present invention provides mechanisms to safely distribute and execute tested, or untested, applications by determining whether the application has been modified, determining if it has permission to execute in a given wireless device environment, and removing the application should it be desirable to do so.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: August 29, 2006
    Assignee: Qualcomm Inc.
    Inventors: Laurence Lundblade, Marc S. Phillips, Brian Minear, Yan Zhuang, Anand Krishnan, Stephen A. Sprigg, Mazen Chmaytelli, Mitchell Oliver, Gerald Horel, Karen Crossland
  • Publication number: 20060076971
    Abstract: Methods and systems are provided for characterizing the negative temperature bias instability of a transistor. A bias voltage is maintained at a drain terminal of the transistor during a test period. A stress voltage is maintained at a gate terminal of the transistor during the test period, such that the stress voltage is applied concurrently with the bias voltage. At least one characteristic of the transistor is measured at periodic intervals during the stress period to determine a degradation of the at least one characteristic caused by the stress voltage until a termination event occurs.
    Type: Application
    Filed: November 30, 2005
    Publication date: April 13, 2006
    Inventors: Anand Krishnan, Srikanth Krishnan, Vijay Reddy, Cathy Chancellor
  • Publication number: 20060049842
    Abstract: Methods and systems are provided for characterizing the negative temperature bias instability of a transistor. A bias voltage is maintained at a drain terminal of the transistor during a test period. A stress voltage is maintained at a gate terminal of the transistor during the test period, such that the stress voltage is applied concurrently with the bias voltage. At least one characteristic of the transistor is measured at periodic intervals during the stress period to determine a degradation of the at least one characteristic caused by the stress voltage until a termination event occurs.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 9, 2006
    Inventors: Anand Krishnan, Srikanth Krishnan, Vijay Reddy, Cathy Chancellor
  • Publication number: 20060046514
    Abstract: A method of reducing threshold voltage shift of a MOSFET transistor resulting after temperature and voltage stress, and an integrated circuit device fabricated according to the method. The method includes the steps of forming a nitrided dielectric layer on a semiconductor substrate, and subjecting the nitrided dielectric layer to an anneal at low pressure.
    Type: Application
    Filed: August 31, 2004
    Publication date: March 2, 2006
    Applicant: Texas Instruments Incorporated
    Inventors: Husam Alshareef, Rajesh Khamankar, Ajith Varghese, Cathy Chancellor, Anand Krishnan, Malcolm Bevan
  • Publication number: 20050208776
    Abstract: The present invention provides, in one aspect, a method of fabricating a gate oxide layer on a microelectronics substrate. This embodiment comprises forming a stress inducing pattern on a backside of a microelectronics wafer and growing a gate oxide layer on a front side of the microelectronics wafer in the presence of a tensile stress caused by the stress inducing pattern.
    Type: Application
    Filed: March 18, 2005
    Publication date: September 22, 2005
    Applicant: Texas Instruments Inc.
    Inventors: Anand Krishnan, Srinivasan Chakravarthi, Haowen Bu
  • Publication number: 20050133826
    Abstract: An embodiment of the invention is an integrated circuit 2 having antenna proximity lines 3 coupled to the semiconductor substrate 5. Another embodiment of the invention is a method of manufacturing an integrated circuit 2 having antenna proximity lines 3 coupled to the semiconductor substrate 5.
    Type: Application
    Filed: January 25, 2005
    Publication date: June 23, 2005
    Inventors: Anand Krishnan, Srikanth Krishnan
  • Patent number: 6770937
    Abstract: A semiconductor device (200) that includes a semiconductor substrate (210), semiconductor features (230, 235, 240, 260) located thereover and an insulating photoconductive layer (270) coupling the semiconductor features (230, 235, 240, 260). The photoconductive layer (270) is configured to provide conductivity between the semiconductor features (230, 235, 240, 260) in a presence of a plasma.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: August 3, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Anand Krishnan, Srikanth Krishnan
  • Patent number: 6582977
    Abstract: Methods are disclosed for determining charging related to one or more semiconductor processing steps. A wafer having a substantially unpolarized ferroelectric capacitor formed therein is exposed to a processing operation. After processing, the ferroelectric capacitor is measured to determine the extent to which the processing operation polarized the ferroelectric capacitor, and a process related charging value is determined according to the ferroelectric capacitor polarization.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: June 24, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: John Rodriguez, Anand Krishnan
  • Patent number: 5945866
    Abstract: A method for reducing the field dependence of an off-state current flow condition in a field-effect transistor having a source electrode, a drain electrode and a gate electrode, includes the steps of: applying a far off-state bias between the drain electrode and the gate electrode to drive a conduction channel in the field effect transistor into a far off-state; and applying a far off-state bias between the source electrode and the gate electrode to again drive the conduction channel into a far off-state; wherein both applying steps cause application of the far off-state bias for a sufficient time to reduce gate voltage dependency of off-state current flow in the conduction channel during a period when an off-state potential is applied to the gate electrode.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: August 31, 1999
    Assignee: The Penn State Research Foundation
    Inventors: Stephen J. Fonash, Xin Lin, Anand Krishnan, Vyshnavi Suntharalingam