Patents by Inventor Calvin Chow

Calvin Chow 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: 11301608
    Abstract: Methods, machine readable media and systems for simulating the leakage of sensitive data in an integrated circuit, such as cryptographic data or keys, are described. In one embodiment, a method can include the following operations: performing a first dynamic voltage drop (DVD) simulation on a plurality of locations, distributed across an integrated circuit (IC), based on a physical model that specifies physical layout of components on the IC, the IC storing sensitive data in locations of the layout; performing an IC level side channel correlation analysis between each of the locations and the sensitive data based on the results of the first DVD simulation; and selecting, based upon the IC level side channel correlation analysis, a subset of the locations for further simulations to simulate leakage of the sensitive data. Other methods, media and systems are disclosed.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: April 12, 2022
    Assignee: ANSYS, INC.
    Inventors: Lang Lin, Dinesh Kumar Selvakumaran, Norman Chang, Calvin Chow, Deqi Zhu
  • Publication number: 20210224452
    Abstract: Methods, machine readable media and systems for simulating the leakage of sensitive data in an integrated circuit, such as cryptographic data or keys, are described. In one embodiment, a method can include the following operations: performing a first dynamic voltage drop (DVD) simulation on a plurality of locations, distributed across an integrated circuit (IC), based on a physical model that specifies physical layout of components on the IC, the IC storing sensitive data in locations of the layout; performing an IC level side channel correlation analysis between each of the locations and the sensitive data based on the results of the first DVD simulation; and selecting, based upon the IC level side channel correlation analysis, a subset of the locations for further simulations to simulate leakage of the sensitive data. Other methods, media and systems are disclosed.
    Type: Application
    Filed: September 4, 2020
    Publication date: July 22, 2021
    Inventors: Lang Lin, Dinesh Kumar Selvakumaran, Norman Chang, Calvin Chow, Deqi Zhu
  • Publication number: 20100323500
    Abstract: The present invention relates to a system and process for producing a nanowire-material composite. A substrate having nanowires attached to a portion of at least one surface is provided. A material is deposited over the portion to form the nanowire-material composite. The process further optionally includes separating the nanowire-material composite from the substrate to form a freestanding nanowire-material composite. The freestanding nanowire material composite is optionally further processed into a electronic substrate. A variety of electronic substrates can be produced using the methods described herein. For example, a multi-color light-emitting diode can be produced from multiple, stacked layers of nanowire-material composites, each composite layer emitting light at a different wavelength.
    Type: Application
    Filed: August 11, 2010
    Publication date: December 23, 2010
    Applicant: NANOSYS, INC.
    Inventors: Mihai Buretea, Jian Chen, Calvin Chow, Chunming Niu, Yaoling Pan, J. Wallace Parce, Linda T. Romano, David Stumbo
  • Publication number: 20100139770
    Abstract: Nanocomposite photovoltaic devices are provided that generally include semiconductor nanocrystals as at least a portion of a photoactive layer. Photovoltaic devices and other layered devices that comprise core-shell nanostructures and/or two populations of nanostructures, where the nanostructures are not necessarily part of a nanocomposite, are also features of the invention. Varied architectures for such devices are also provided including flexible and rigid architectures, planar and non-planar architectures and the like, as are systems incorporating such devices, and methods and systems for fabricating such devices. Compositions comprising two populations of nanostructures of different materials are also a feature of the invention.
    Type: Application
    Filed: August 4, 2006
    Publication date: June 10, 2010
    Applicant: Nanosys, Inc.
    Inventors: Erik Scher, Mihai A. Buretea, Calvin Chow, Stephen Empedocles, Andreas Meisel, J. Wallace Parce
  • Publication number: 20090075468
    Abstract: The present invention relates to a system and process for producing a nanowire-material composite. A substrate having nanowires attached to a portion of at least one surface is provided. A material is deposited over the portion to form the nanowire-material composite. The process further optionally includes separating the nanowire-material composite from the substrate to form a freestanding nanowire-material composite. The freestanding nanowire material composite is optionally further processed into a electronic substrate. A variety of electronic substrates can be produced using the methods described herein. For example, a multi-color light-emitting diode can be produced from multiple, stacked layers of nanowire-material composites, each composite layer emitting light at a different wavelength.
    Type: Application
    Filed: November 20, 2008
    Publication date: March 19, 2009
    Applicant: NANOSYS, INC.
    Inventors: Mihai Buretea, Jian Chen, Calvin Chow, Chunming Niu, Yaoling Pan, J. Wallace Parce, Linda T. Romano, David Stumbo
  • Publication number: 20080026532
    Abstract: Methods and apparatuses for nanoenabled memory devices and anisotropic charge carrying arrays are described. In an aspect, a memory device includes a substrate, a source region of the substrate, and a drain region of the substrate. A population of nanoelements is deposited on the substrate above a channel region, the population of nanolements in one embodiment including metal quantum dots. A tunnel dielectric layer is formed on the substrate overlying the channel region, and a metal migration barrier layer is deposited over the dielectric layer. A gate contact is formed over the thin film of nanoelements. The nanoelements allow for reduced lateral charge transfer. The memory device may be a single or multistate memory device.
    Type: Application
    Filed: September 5, 2007
    Publication date: January 31, 2008
    Applicant: NANOSYS, INC.
    Inventors: Xiangfeng Duan, Calvin Chow, David Heald, Chunming Niu, J. Parce, David Stumbo
  • Publication number: 20070279837
    Abstract: This invention provides novel capacitors comprising nanofiber enhanced surface area substrates and structures comprising such capacitors, as well as methods and uses for such capacitors.
    Type: Application
    Filed: August 17, 2007
    Publication date: December 6, 2007
    Applicant: NANOSYS, INC.
    Inventors: Calvin Chow, Robert Dubrow
  • Publication number: 20070264634
    Abstract: Methods of detecting a component of interest, a change in charge, a pH, a cellular response using nanosensors are provided. Nanosensors, including nanowires and nanowire arrays comprising functionalized and/or non-functionalized nanowires are provided. Nanosensors are, used for detection in cellular fragmentation, multiple concentration analysis, glucose detection, and intracellular analysis.
    Type: Application
    Filed: October 9, 2003
    Publication date: November 15, 2007
    Inventors: Larry Bock, R. Daniels, Stephen Empedocles, Chumming Niu, John Owicki, Vijendra Sahi, Calvin Chow, George Pontis
  • Publication number: 20070247904
    Abstract: Methods and apparatuses for nanoenabled memory devices and anisotropic charge carrying arrays are described. In an aspect, a memory device includes a substrate, a source region of the substrate, and a drain region of the substrate. A population of nanoelements is deposited on the substrate above a channel region, the population of nanolements in one embodiment including metal quantum dots. A tunnel dielectric layer is formed on the substrate overlying the channel region, and a metal migration barrier layer is deposited over the dielectric layer. A gate contact is formed over the thin film of nanoelements. The nanoelements allow for reduced lateral charge transfer. The memory device may be a single or multistate memory device.
    Type: Application
    Filed: June 22, 2007
    Publication date: October 25, 2007
    Applicant: NANOSYS, INC.
    Inventors: Xiangfeng Duan, Calvin Chow, David Heald, Chunming Niu, J. Parce, David Stumbo
  • Publication number: 20070238314
    Abstract: The present invention relates to a system and process for producing a nanowire-material composite. A substrate having nanowires attached to a portion of at least one surface is provided. A material is deposited over the portion to form the nanowire-material composite. The process further optionally comprises separating the nanowire-material composite from the substrate to form a freestanding nanowire-material composite. The freestanding nanowire material composite is optionally further processed into a electronic substrate. A variety of electronic substrates can be produced using the methods described herein. For example, a multi-color light-emitting diode can be produced from multiple, stacked layers of nanowire-material composites, each composite layer emitting light at a different wavelength.
    Type: Application
    Filed: September 14, 2005
    Publication date: October 11, 2007
    Applicant: Nanosys, Inc.
    Inventors: Mihai Buretea, Jian Chen, Calvin Chow, Chunming Niu, Yaoling Pan, J. Parce, Linda Romano, David Stumbo
  • Publication number: 20070187768
    Abstract: Methods and apparatuses for nanoenabled memory devices and anisotropic charge carrying arrays are described. In an aspect, a memory device includes a substrate, a source region of the substrate, and a drain region of the substrate. A population of nanoelements is deposited on the substrate above a channel region, the population of nanolements in one embodiment including metal quantum dots. A tunnel dielectric layer is formed on the substrate overlying the channel region, and a metal migration barrier layer is deposited over the dielectric layer. A gate contact is formed over the thin film of nanoelements. The nanoelements allow for reduced lateral charge transfer. The memory device may be a single or multistate memory device.
    Type: Application
    Filed: April 3, 2007
    Publication date: August 16, 2007
    Applicant: NANOSYS, INC.
    Inventors: Xiangfeng Duan, Calvin Chow, David Heald, Chunming Niu, J. Parce, David Stumbo
  • Publication number: 20070110633
    Abstract: Fluid introduction is facilitated through the use of a port which extends entirely through a microfluidic substrate. Capillary forces can be used to retain the fluid within the port, and a series of samples or other fluids may be introduced through a single port by sequentially blowing the fluid out through the substrate and replacing the removed fluid with an alternate fluid, or by displacing the fluid in part with additional fluid. In another aspect, microfluidic substrates have channels which varying in cross-sectional dimension so that capillary action spreads a fluid only within a limited portion of the channel network. In yet another aspect, the introduction ports may include a multiplicity of very small channels leading from the port to a fluid channel, so as to filter out particles or other contaminants which might otherwise block the channel at the junction between the channel and the introduction port.
    Type: Application
    Filed: December 29, 2006
    Publication date: May 17, 2007
    Inventors: Steven Sundberg, J. Parce, Calvin Chow
  • Publication number: 20070102296
    Abstract: Fluid introduction is facilitated through the use of a port which extends entirely through a microfluidic substrate. Capillary forces can be used to retain the fluid within the port, and a series of samples or other fluids may be introduced through a single port by sequentially blowing the fluid out through the substrate and replacing the removed fluid with an alternate fluid, or by displacing the fluid in part with additional fluid. In another aspect, microfluidic substrates have channels which varying in cross-sectional dimension so that capillary action spreads a fluid only within a limited portion of the channel network. In yet another aspect, the introduction ports may include a multiplicity of very small channels leading from the port to a fluid channel, so as to filter out particles or other contaminants which might otherwise block the channel at the junction between the channel and the introduction port.
    Type: Application
    Filed: December 29, 2006
    Publication date: May 10, 2007
    Inventors: Steven Sundberg, J. Parce, Calvin Chow
  • Publication number: 20070102297
    Abstract: Fluid introduction is facilitated through the use of a port which extends entirely through a microfluidic substrate. Capillary forces can be used to retain the fluid within the port, and a series of samples or other fluids may be introduced through a single port by sequentially blowing the fluid out through the substrate and replacing the removed fluid with an alternate fluid, or by displacing the fluid in part with additional fluid. In another aspect, microfluidic substrates have channels which varying in cross-sectional dimension so that capillary action spreads a fluid only within a limited portion of the channel network. In yet another aspect, the introduction ports may include a multiplicity of very small channels leading from the port to a fluid channel, so as to filter out particles or other contaminants which might otherwise block the channel at the junction between the channel and the introduction port.
    Type: Application
    Filed: December 29, 2006
    Publication date: May 10, 2007
    Inventors: Steven Sundberg, J. Parce, Calvin Chow
  • Publication number: 20070102295
    Abstract: Fluid introduction is facilitated through the use of a port which extends entirely through a microfluidic substrate. Capillary forces can be used to retain the fluid within the port, and a series of samples or other fluids may be introduced through a single port by sequentially blowing the fluid out through the substrate and replacing the removed fluid with an alternate fluid, or by displacing the fluid in part with additional fluid. In another aspect, microfluidic substrates have channels which varying in cross-sectional dimension so that capillary action spreads a fluid only within a limited portion of the channel network. In yet another aspect, the introduction ports may include a multiplicity of very small channels leading from the port to a fluid channel, so as to filter out particles or other contaminants which might otherwise block the channel at the junction between the channel and the introduction port.
    Type: Application
    Filed: December 29, 2006
    Publication date: May 10, 2007
    Inventors: Steven Sundberg, J. Parce, Calvin Chow
  • Publication number: 20070092400
    Abstract: Fluid introduction is facilitated through the use of a port which extends entirely through a microfluidic substrate. Capillary forces can be used to retain the fluid within the port, and a series of samples or other fluids may be introduced through a single port by sequentially blowing the fluid out through the substrate and replacing the removed fluid with an alternate fluid, or by displacing the fluid in part with additional fluid. In another aspect, microfluidic substrates have channels which varying in cross-sectional dimension so that capillary action spreads a fluid only within a limited portion of the channel network. In yet another aspect, the introduction ports may include a multiplicity of very small channels leading from the port to a fluid channel, so as to filter out particles or other contaminants which might otherwise block the channel at the junction between the channel and the introduction port.
    Type: Application
    Filed: December 29, 2006
    Publication date: April 26, 2007
    Inventors: Steven Sundberg, J. Parce, Calvin Chow
  • Publication number: 20060286000
    Abstract: Fluid introduction is facilitated through the use of a port which extends entirely through a microfluidic substrate. Capillary forces can be used to retain the fluid within the port, and a series of samples or other fluids may be introduced through a single port by sequentially blowing the fluid out through the substrate and replacing the removed fluid with an alternate fluid, or by displacing the fluid in part with additional fluid. In another aspect, microfluidic substrates have channels which varying in cross-sectional dimension so that capillary action spreads a fluid only within a limited portion of the channel network. In yet another aspect, the introduction ports may include a multiplicity of very small channels leading from the port to a fluid channel, so as to filter out particles or other contaminants which might otherwise block the channel at the junction between the channel and the introduction port.
    Type: Application
    Filed: July 27, 2006
    Publication date: December 21, 2006
    Inventors: Steven Sundberg, J. Parce, Calvin Chow
  • Publication number: 20060286002
    Abstract: Fluid introduction is facilitated through the use of a port which extends entirely through a microfluidic substrate. Capillary forces can be used to retain the fluid within the port, and a series of samples or other fluids may be introduced through a single port by sequentially blowing the fluid out through the substrate and replacing the removed fluid with an alternate fluid, or by displacing the fluid in part with additional fluid. In another aspect, microfluidic substrates have channels which varying in cross-sectional dimension so that capillary action spreads a fluid only within a limited portion of the channel network. In yet another aspect, the introduction ports may include a multiplicity of very small channels leading from the port to a fluid channel, so as to filter out particles or other contaminants which might otherwise block the channel at the junction between the channel and the introduction port.
    Type: Application
    Filed: July 27, 2006
    Publication date: December 21, 2006
    Inventors: Steven Sundberg, J. Parce, Calvin Chow
  • Publication number: 20060286001
    Abstract: Fluid introduction is facilitated through the use of a port which extends entirely through a microfluidic substrate. Capillary forces can be used to retain the fluid within the port, and a series of samples or other fluids may be introduced through a single port by sequentially blowing the fluid out through the substrate and replacing the removed fluid with an alternate fluid, or by displacing the fluid in part with additional fluid. In another aspect, microfluidic substrates have channels which varying in cross-sectional dimension so that capillary action spreads a fluid only within a limited portion of the channel network. In yet another aspect, the introduction ports may include a multiplicity of very small channels leading from the port to a fluid channel, so as to filter out particles or other contaminants which might otherwise block the channel at the junction between the channel and the introduction port.
    Type: Application
    Filed: July 27, 2006
    Publication date: December 21, 2006
    Inventors: Steven Sundberg, J. Parce, Calvin Chow
  • Publication number: 20060279905
    Abstract: This invention provides novel capacitors comprising nanofiber enhanced surface area substrates and structures comprising such capacitors, as well as methods and uses for such capacitors.
    Type: Application
    Filed: August 21, 2006
    Publication date: December 14, 2006
    Applicant: Nanosys, Inc.
    Inventors: Calvin Chow, Robert Dubrow