Patents Assigned to The Bergquist Company
  • Publication number: 20150140411
    Abstract: A battery system includes a polyurea coating applied to a metal casing of a battery cell, wherein the polyurea coating is formed from a reaction mixture of an isocyanate component with ceramic particles, and an amine component with ceramic particles. The ceramic particle-filled polyurea coating exhibits a suitable thermal conductivity to substantially reduce thermal impedance to heat transfer from and to the battery cell, as well as sufficient electrical insulation.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 21, 2015
    Applicant: The Bergquist Company
    Inventors: Wei Li, Sanjay Misra
  • Publication number: 20140182924
    Abstract: An interface pad for suppressing electromagnetic and radio frequency radiation includes first and second generally opposing sides which define a thickness therebetween, with the interface pad exhibiting thermal conductivity, electrical resistivity, and a hardness of between 10-70 Shore 00 at 20° C. The interface pad is capable of attenuating electromagnetic and/or radio frequency radiation that is commonly associated with interference of electronic components.
    Type: Application
    Filed: January 3, 2013
    Publication date: July 3, 2014
    Applicant: THE BERGQUIST COMPANY
    Inventor: The Bergquist Company
  • Publication number: 20130221014
    Abstract: A package for delivery of a tacky product includes a carrier with a plurality of cavities separately disposed along a length and width thereof. Each of the cavities in the carrier tape includes a base that is sized to operably receive and support the product within the cavity. The base of each cavity includes a surface profile which defines a contact surface area that is sufficiently low so as to facilitate removal of the product from the cavity without damage to the product. In some cases, the contact surface area is less than about 50% of a base surface area of the base. The carrier may be configured to stack with other carriers without risk of damage to the tacky product.
    Type: Application
    Filed: April 2, 2013
    Publication date: August 29, 2013
    Applicant: The Bergquist Company
    Inventor: The Bergquist Company
  • Patent number: 8430264
    Abstract: A package for delivery of a tacky product includes a carrier with a plurality of cavities separately disposed along a length and width thereof. Each of the cavities in the carrier tape includes a base that is sized to operably receive and support the product within the cavity. The base of each cavity includes a surface profile which defines a contact surface area that is sufficiently low so as to facilitate removal of the product from the cavity without damage to the product. In some cases, the contact surface area is less than about 50% of a base surface area of the base. The carrier may be configured to stack with other carriers without risk of damage to the tacky product.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: April 30, 2013
    Assignee: The Bergquist Company
    Inventors: Radesh Jewram, William E. McIntosh, Jeremy J. Schmitz
  • Patent number: 8205766
    Abstract: A package for delivery of a tacky product includes a carrier tape with a plurality of cavities separately disposed along a length thereof. Each of the cavities in the carrier tape includes a base that is sized to operably receive and support the product. The base of each cavity includes a surface profile which defines a contact surface area that is sufficiently low so as to facilitate removal of the product from the cavity without damage to the product. In some cases, the contact surface area is less than about 50% of a base surface area of the base. The carrier tape may be configured for use in tape and reel packaging systems.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: June 26, 2012
    Assignee: The Bergquist Company
    Inventors: Radesh Jewram, William E. McIntosh
  • Patent number: 8110919
    Abstract: A package includes a thermal interface member which includes a bulk layer and a surface layer that is disposed on at least a portion of a surface of the bulk layer. The surface layer is highly thermally conductive, has a melting point exceeding a solder reflow temperature, and has a maximum cross-sectional thickness of less than about 10 microns.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: February 7, 2012
    Assignee: The Bergquist Company
    Inventors: Radesh Jewram, Sanjay Misra
  • Patent number: 8076773
    Abstract: A thermal interface member includes a bulk layer and a surface layer that is disposed on at least a portion of a surface of the bulk layer. The surface layer is highly thermally conductive, has a melting point exceeding a solder reflow temperature, and has a maximum cross-sectional thickness of less than about 10 microns.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: December 13, 2011
    Assignee: The Bergquist Company
    Inventors: Radesh Jewram, Sanjay Misra
  • Patent number: 7760507
    Abstract: An interconnect structure for operable placement between a first body and a second body, wherein the interconnect structure includes a first surface for operable juxtaposition with the first body, a second surface for operable juxtaposition with the second body, and a thickness dimension defined between the first and second surfaces. The interconnect structure includes a first thermally conductive material and a second electrically conductive material, wherein the second electrically conductive material is formed in one or more distinct structures, with the structures forming at least one substantially continuous pathway of the second material through the thickness dimension. The interconnect structure exhibits a compressive modulus along a thickness axis of less than about 100 psi.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: July 20, 2010
    Assignee: The Bergquist Company
    Inventors: Radesh Jewram, Sanjay Misra
  • Patent number: 6984685
    Abstract: A stabilized thermally conductive mechanical compliant laminate pad to be interposed between opposed surfaces of a generating semi-conductor device and a heat sink, with the laminate pad comprising upper and lower laminae on opposed surfaces of a central stabilizing apertured grid. The laminae are subjected to a compressive force at an elevated temperature until portions of the laminae extend through the apertures to form a continuum. The laminae comprise a polymer matrix having a quantity of a low melting indium or gallium alloy and a thermally conductive particulate dispersed there through, with the polymer matrix being a hot wax or melt resin. With the upper and lower laminae positioned on opposed surfaces of a central stabilizing apertured grid a compressive load is applied to force portions of said laminae to pass through apertures in the mesh grid to form a continuum.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: January 10, 2006
    Assignee: The Bergquist Company
    Inventors: Sanjay Misra, Radesh Jewram, G M Fazley Elahee
  • Patent number: 6898084
    Abstract: An apparatus for operably conveying heat away from a heat source includes a thermally conductive substrate having a thickness defining a planar boundary thereof, and an insert portion disposed in the substrate and being positioned so as not to extend beyond the planar boundary. The insert portion is a material having a thermal conductivity value of at least 1.5 times that of the substrate material along at least two axial directions, with one of such axial directions extending substantially perpendicularly to first and second opposed sides of the substrate.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: May 24, 2005
    Assignee: The Bergquist Company
    Inventor: Sanjay Misra
  • Patent number: 6797758
    Abstract: A thermally conductive mechanically compliant pad including a quantity of gallium and/or indium alloy liquid at temperatures below about 120° C. and a boron nitride particulate solid blended into the liquid metal alloy to form a paste. The paste is then combined with a quantity of a matrix forming flowable plastic resin such as microwax, silicone wax, or other silicone polymer to form the thermally conductive mechanically compliant pad, the compliant pad comprising from between about 10% and 90% of metal alloy coated particulate, balance flowable plastic resin.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: September 28, 2004
    Assignee: The Bergquist Company
    Inventors: Sanjay Misra, G M Fazley Elahee
  • Patent number: 6657297
    Abstract: A flexible plastic thermally conductive multilayer semiconductor mounting pad having a highly thermally conductive bulk layer with thermally conductive surface skin layers bonded integrally to opposed major surfaces thereof. The bulk layer and the surface skin layers are each filled with a finely divided thermally conductive particulate, with the skin layers being harder than the bulk layer and being blended with an amount of filler which is less than that present in the bulk layer.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: December 2, 2003
    Assignee: The Bergquist Company
    Inventors: Radesh Jewram, Kasyap Venkata Seethamraju, Kevin L. Hanson
  • Patent number: 6649325
    Abstract: Methods and formulations for use in preparing thermally conductive dielectric mounts for heat generating semi-conductor devices and associated circuitry. The formulations include a thermoplastic resin selected from the group consisting of polysulfone, poly-ethersulfone, poly-phenylsulfone, and poly-etherimides, with these resins being applied as a dispersion onto the surfaces of opposed metallic members. The dispersion is dried and thereafter treated under heat and pressure at temperatures greater than the glass transition temperature under unit pressures of between 100 psi and 800 psi and for periods in excess of about 30 minutes. The polymer resin may be filled with solid particulate such as alumina and/or boron nitride.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: November 18, 2003
    Assignee: The Bergquist Company
    Inventors: Benjamin P. Gundale, Sanjay Misra
  • Patent number: 6650215
    Abstract: A method of enhancing the heat dissipating properties of a rigid substrate plate through creation of an array of erect spaced-apart parallelly disposed metallic fins projecting from the heat dissipating surface of the plate. The fins are created by superimposing a sheet of metallic foil upon a metallic plate, with the foil being bonded to the plate by welding utilizing ultrasonic energy. The welds are formed as spaced-apart parallel bands, with the foil being slit adjacent one edge of the band, with the foil thereafter being folded outwardly to form the heat dissipating metallic foil fins. The folding operation is undertaken following the steps of populating the substrate, thereby eliminating the requirement for unusual steps or precautions to protect what otherwise would be outwardly extending metallic fins.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: November 18, 2003
    Assignee: The Bergquist Company
    Inventor: Benjamin P. Gundale
  • Publication number: 20030187116
    Abstract: A stabilized thermally conductive mechanical compliant laminate pad to be interposed between opposed surfaces of a generating semi-conductor device and a heat sink, with the laminate pad comprising upper and lower laminae on opposed surfaces of a central stabilizing apertured grid. The laminae are subjected to a compressive force at an elevated temperature until portions of the laminae extend through the apertures to form a continuum. The laminae comprise a polymer matrix having a quantity of a low melting indium or gallium alloy and a thermally conductive particulate dispersed there through, with the polymer matrix being a hot wax or melt resin. With the upper and lower laminae positioned on opposed surfaces of a central stabilizing apertured grid a compressive load is applied to force portions of said laminae to pass through apertures in the mesh grid to form a continuum.
    Type: Application
    Filed: October 24, 2002
    Publication date: October 2, 2003
    Applicant: The Bergquist Company
    Inventors: Sanjay Misra, Radesh Jewram, G M Fazley Elahee
  • Patent number: 6624224
    Abstract: A thermally conductive mechanically compliant pad of high stability including a quantity of gallium and/or indium alloy liquid at temperatures below about 120° C. and a boron nitride particulate solid blended into the liquid metal alloy to form a paste. The paste is then combined with a quantity of a flowable plastic resin consisting of a blend of silicone oil and octyl-ethoxysilane to form the mechanically compliant pad, the compliant pad comprising from between about 10% and 90% of metallic coated particulate, balance flowable plastic resin blend.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: September 23, 2003
    Assignee: The Bergquist Company
    Inventor: Sanjay Misra
  • Patent number: 6611256
    Abstract: A touch screen assembly for contact input systems, with the touch screen including a base substrate with an electrically resistive coating thereon. An array of reticulated spaced raised projections are formed on the inner surface, with the raised projections consisting of a developed/cured photoresist. In its formation, the photoresist is applied as an adherent layer with a release-film backing, with the layer being applied onto a heated substrate. Thereafter, a laminate is formed by passing the photoresist layer beneath a heated pneumatically actuated nip roll to cause the photoresist layer to flow, thereby forming a layer of uniform thickness. Thereafter, the laminate is masked, exposed to incident radiation, and developed so as to provide a reticulated pattern of adherent raised projections. A flexible plastic film having a resistive coating thereon is thereafter mounted on the substrate in superimposed relationship to the raised projections.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: August 26, 2003
    Assignee: The Bergquist Company
    Inventor: Mary L. Randall
  • Patent number: 6559835
    Abstract: An improved electrode arrangement for touch screen panels wherein the conductive segments forming the edge arrays and the elongated buses which deliver input signals to the arrays are in stacked superimposed relationship, one to the other. At the respective cross-over points between the buses and the conductive segments, the respective axes are angularly disposed, one to the other, so as to eliminate the creation of an impedance which may adversely affect the accuracy of the output of the touch screen. Each cross-over point is located along a solid portion of the conductive segments comprising the array.
    Type: Grant
    Filed: February 19, 2001
    Date of Patent: May 6, 2003
    Assignee: The Bergquist Company
    Inventor: Mary L. Randall
  • Publication number: 20030027910
    Abstract: A thermally conductive mechanically compliant pad including a quantity of gallium and/or indium alloy liquid at temperatures below about 120° C. and a boron nitride particulate solid blended into the liquid metal alloy to form a paste. The paste is then combined with a quantity of a matrix forming flowable plastic resin such as microwax, silicone wax, or other silicone polymer to form the thermally conductive mechanically compliant pad, the compliant pad comprising from between about 10% and 90% of metal alloy coated particulate, balance flowable plastic resin.
    Type: Application
    Filed: September 5, 2001
    Publication date: February 6, 2003
    Applicant: The Bergquist Company
    Inventors: Sanjay Misra, Gm Fazley Elahee
  • Patent number: RE39992
    Abstract: A thermally conductive mechanically compliant pad including a quantity of gallium and/or indium alloy liquid at temperatures below about 120° C. and a boron nitride particulate solid blended into the liquid metal alloy to form a paste. The paste is then combined with a quantity of a matrix forming flowable plastic resin such as microwax, silicone wax, or other silicone polymer to form the thermally conductive mechanically compliant pad, the compliant pad comprising from between about 10% and 90% of metal alloy coated particulate, balance flowable plastic resin.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: January 1, 2008
    Assignee: The Bergquist Company
    Inventors: Sanjay Misra, GM Fazley Elahee