Patents by Inventor David J. Alcoe

David J. Alcoe 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: 6744132
    Abstract: A method and structure to adhesively couple a cover plate to a semiconductor device. A semiconductor device is electrically coupled to a substrate. A stiffener ring surrounding the semiconductor device is adhesively coupled to the substrate. A cover plate is adhesively coupled to both a top surface of the semiconductor device and a top surface of the stiffener ring using a first and second adhesive, respectively. The modulus of the first adhesive is less than the modulus of the second adhesive.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: June 1, 2004
    Assignee: International Business Machines Corporation
    Inventors: David J. Alcoe, Thomas W. Dalrymple, Michael A. Gaynes, Randall J. Stutzman
  • Publication number: 20040099939
    Abstract: A semiconductor chip carrier having an increased chip connector and plated through hole density. In particular, a substrate having a plurality of plated through holes therein, and a fatigue resistant redistribution layer thereon. The redistribution layer includes a plurality of vias selectively positioned over and contacting the plated through holes. The substrate further including a ground plane, two pair of signal planes, and two pair of power planes, wherein the second pair of power planes are located directly underneath the external dielectric layer. A buried plated through hole within the substrate.
    Type: Application
    Filed: November 21, 2003
    Publication date: May 27, 2004
    Inventors: David J. Alcoe, Francis J. Downes, Gerald W. Jones, John S. Kresge, Cheryl L. Tytran-Palomaki
  • Patent number: 6720502
    Abstract: A semiconductor chip carrier having an increased chip connector and plated through hole density. In particular, a substrate having a plurality of plated through holes therein, and a fatigue resistant redistribution layer thereon. The redistribution layer includes a plurality of vias selectively positioned over and contacting the plated through holes. The substrate further including a ground plane, two pair of signal planes, and two pair of power planes, wherein the second pair of power planes are located directly underneath the external dielectric layer. A buried plated through hole within the substrate.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: April 13, 2004
    Assignee: International Business Machine Corporation
    Inventors: David J. Alcoe, Francis J. Downes, Jr., Gerald W. Jones, John S. Kresge, Cheryl L. Tytran-Palomaki
  • Publication number: 20040057214
    Abstract: An electronic package having one or more components comprising: a substrate having a first coefficient of thermal expansion; a lid attached to the substrate, the lid including a vapor chamber, the lid having a second coefficient of thermal expansion, the first coefficient of thermal expansion matched to the second coefficient of expansion; a thermal transfer medium in contact with a back surface of each component and an outer surface of a lower wall of the lid; and each component electrically connected to a top surface of the substrate.
    Type: Application
    Filed: September 18, 2003
    Publication date: March 25, 2004
    Inventors: David J. Alcoe, William L. Brodsky, Varaprasad V. Calmidi, Sanjeev B. Sathe, Randall J. Stutzman
  • Patent number: 6703704
    Abstract: An electronic structure and associated method of formation. A laminate is solderably coupled to an electronic carrier. A stiffener is adhesively attached to a portion of a surface of the laminate by a stiffener adhesive that is in physically adhesive contact with a portion of a first surface of the stiffener and with the portion of the surface of the laminate. A thermal lid is adhesively attached to a portion of a second surface of the stiffener by a lid adhesive that is in physically adhesive contact with a portion of a surface of the lid and with a portion of the second surface of the stiffener. A void region is disposed between the surface of the thermal lid and the surface of the laminate.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: March 9, 2004
    Assignee: International Business Machines Corporation
    Inventors: David J. Alcoe, Kim J. Blackwell, Virendra R. Jadhav
  • Patent number: 6667557
    Abstract: A method for providing a package for a semiconductor chip that minimizes stresses and strains that arise from differential thermal expansion on chip-to-substrate or chip-to-card interconnections. A collar element of one or more elements is provided. Adhesive material connects the collar element to the electric device and to the substrate that supports it, forming a unitary electrical package.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: December 23, 2003
    Assignee: International Business Machines Corporation
    Inventors: David J. Alcoe, Eric A. Johnson, Matthew M. Reiss, Charles G. Woychik
  • Patent number: 6665187
    Abstract: An electronic package having one or more components comprising: a substrate having a first coefficient of thermal expansion; a lid attached to the substrate, the lid including a vapor chamber, the lid having a second coefficient of thermal expansion, the first coefficient of thermal expansion matched to the second coefficient of expansion; a thermal transfer medium in contact with a back surface of each component and an outer surface of a lower wall of the lid; and each component electrically connected to a top surface of the substrate.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: December 16, 2003
    Assignee: International Business Machines Corporation
    Inventors: David J. Alcoe, William L. Brodsky, Varaprasad V. Calmidi, Sanjeev B. Sathe, Randall J. Stutzman
  • Publication number: 20030210531
    Abstract: The present invention provides a package for a semiconductor chip that minimizes stresses and strains that arise from differential thermal expansion on chip-to-substrate or chip-to-card interconnections. A collar element of one or more elements is provided. Adhesive material connects the collar element to the electric device and to the substrate that supports it, forming a unitary electrical package.
    Type: Application
    Filed: April 9, 2003
    Publication date: November 13, 2003
    Inventors: David J. Alcoe, Eric A. Johnson, Matthew M. Reiss, Charles G. Woychik
  • Publication number: 20030196826
    Abstract: An electronic package includes a substrate having a contact pad thereon, a reformable member such as a solder ball positioned on the contact pad, and an elastic member positioned around the reformable member. The elastic member exerts a girdling force on the reformable member so that when the reformable member is softened, the elastic member elongates the reformable member. This elongation accommodates thermal and other stresses between the foregoing substrate and another substrate joined at the free end of the reformable member. An apparatus is also provided for positioning the elastic member on and around the reformable member.
    Type: Application
    Filed: March 28, 2003
    Publication date: October 23, 2003
    Inventor: David J. Alcoe
  • Patent number: 6631078
    Abstract: A heat dissipating flexible or resilient standoff is mechanically clamped between an electronic module and substrate, such as, PCB. The clamping arrangement comprises a heat sink compressing a thermally conductive flexible interface pad over the upper surface of the electronic module by way of mechanical linkage to the PCB. The heat dissipating flexible standoff provides a force opposing the compression force to thereby reduce stress on solder ball connections between electronic module and PCB. Thermally conductive flexible standoffs in the form of spring arrangements, such as a wire mesh, act to provide heat dissipation by both thermal conduction and thermal convection. A thermally conductive flexible polymer pad and a layer of porous metal foam may also act as thermally conductive standoffs.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: October 7, 2003
    Assignee: International Business Machines Corporation
    Inventors: David J. Alcoe, Varaprasad Venkata Calmidi, Krishna Darbha, Sanjeev Balwant Sathe
  • Publication number: 20030141586
    Abstract: A method and structure to adhesively couple a cover plate to a semiconductor device. A semiconductor device is electrically coupled to a substrate. A stiffener ring surrounding the semiconductor device is adhesively coupled to the substrate. A cover plate is adhesively coupled to both a top surface of the semiconductor device and a top surface of the stiffener ring using a first and second adhesive, respectively. The modulus of the first adhesive is less than the modulus of the second adhesive.
    Type: Application
    Filed: January 29, 2002
    Publication date: July 31, 2003
    Applicant: International Business Machines Corporation
    Inventors: David J. Alcoe, Thomas W. Dalrymple, Michael A. Gaynes, Randall J. Stutzman
  • Publication number: 20030129863
    Abstract: A heat dissipating flexible or resilient standoff is mechanically clamped between an electronic module and substrate, such as, PCB. The clamping arrangement comprises a heat sink compressing a thermally conductive flexible interface pad over the upper surface of the electronic module by way of mechanical linkage to the PCB. The heat dissipating flexible standoff provides a force opposing the compression force to thereby reduce stress on solder ball connections between electronic module and PCB. Thermally conductive flexible standoffs in the form of spring arrangements, such as a wire mesh, act to provide heat dissipation by both thermal conduction and thermal convection. A thermally conductive flexible polymer pad and a layer of porous metal foam may also act as thermally conductive standoffs.
    Type: Application
    Filed: January 10, 2002
    Publication date: July 10, 2003
    Applicant: International Business Machines Corporation
    Inventors: David J. Alcoe, Varaprasad Venkata Calmidi, Krishna Darbha, Sanjeev Balwant Sathe
  • Patent number: 6583354
    Abstract: An electronic package includes a substrate having a contact pad thereon, a reformable member such as a solder ball positioned on the contact pad, and an elastic member positioned around the reformable member. The elastic member exerts a girdling force on the reformable member so that when the reformable member is softened, the elastic member elongates the reformable member. This elongation accommodates thermal and other stresses between the foregoing substrate and another substrate joined at the free end of the reformable member. An apparatus is also provided for positioning the elastic member on and around the reformable member.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: June 24, 2003
    Assignee: International Business Machines Corporation
    Inventor: David J. Alcoe
  • Patent number: 6570259
    Abstract: The present invention provides a package for a semiconductor chip that minimizes stresses and strains that arise from differential thermal expansion on chip-to-substrate or chip-to-card interconnections. A collar element of one or more elements is provided. Adhesive material connects the collar element to the electric device and to the substrate that supports it, forming a unitary electrical package.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: May 27, 2003
    Assignee: International Business Machines Corporation
    Inventors: David J. Alcoe, Eric A. Johnson, Matthew M. Reiss, Charles G. Woychik
  • Publication number: 20030047807
    Abstract: An electronic package and method of making same in which a circuitized substrate having a first stiffness includes a plurality of electrically conductive circuit members on a first portion of the circuitized substrate and is adapted for having solder connections thereon and for being electrically connected to a semiconductor chip. A stiffener layer having a second stiffness is positioned on a second portion of the circuitized substrate relative to the first portion, the second stiffness of the stiffener layer distributing a portion of the first stiffness of said circuitized substrate so as to substantially prevent failure of the solder connections between the electrically conductive circuit members and the semiconductor chip during operation of the electronic package.
    Type: Application
    Filed: September 5, 2001
    Publication date: March 13, 2003
    Applicant: International Business Machines Corporation
    Inventors: David J. Alcoe, Li Li, Sanjeev B. Sathe
  • Publication number: 20030001248
    Abstract: A stress-relieving heatsink structure and method of forming thereof for an electronic package, for instance, that including a semiconductor chip package which is mounted on a wired carrier, such as a circuitized substrate. The heatsink structure is constituted from a plurality of base structures which are joined along slits so as to impart a degree of flexibility to the electronic package inhibiting the forming of stresses tending to cause delamination of the package components.
    Type: Application
    Filed: August 22, 2002
    Publication date: January 2, 2003
    Applicant: Internationl Business Machines Corporation
    Inventors: David J. Alcoe, Randall J. Stutzman
  • Publication number: 20020139578
    Abstract: A method and structure for forming an electronic structure that comprises a redistribution structure on a circuitized substrate. The redistribution structure includes N dielectric layers ( N >2) and N metal planes formed in the following sequence: dielectric layer 1 on a metallic plane that exists on a surface of the substrate, metal plane 1 on dielectric layer 1, dielectric layer 2 on dielectric layer 1 and metal plane 1, metal plane 2 on the dielectric layer 2, . . . , dielectric layer N on dielectric layer N-1 and metal plane N-1, and metal plane N on the dielectric layer N. Metal planes or metallic planes may include signal planes, power planes, ground planes, etc. A microvia structure, which is formed through the N dielectric layers and electrically couples metal plane N to the metallic plane, includes a microvia or a portion of a microvia through each dielectric layer.
    Type: Application
    Filed: March 28, 2001
    Publication date: October 3, 2002
    Applicant: International Business Machines Corporation
    Inventors: David J. Alcoe, Kim J. Blackwell
  • Publication number: 20020135052
    Abstract: A stress-relieving heatsink structure and method of forming thereof for an electronic package, for instance, that including a semiconductor chip package which is mounted on a wired carrier, such as a circuitized substrate. The heatsink structure is constituted from a plurality of base structures which are joined along slits so as to impart a degree of flexibility to the electronic package inhibiting the forming of stresses tending to cause delamination of the package components.
    Type: Application
    Filed: March 22, 2001
    Publication date: September 26, 2002
    Applicant: International Business Machines Corporation
    Inventors: David J. Alcoe, Randall J. Stutzman
  • Publication number: 20020135063
    Abstract: The present invention provides a package for a semiconductor chip that minimizes stresses and strains that arise from differential thermal expansion on chip-to-substrate or chip-to-card interconnections. A collar element of one or more elements is provided. Adhesive material connects the collar element to the electric device and to the substrate that supports it, forming a unitary electrical package.
    Type: Application
    Filed: March 22, 2001
    Publication date: September 26, 2002
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David J. Alcoe, Eric A. Johnson, Matthew M. Reiss, Charles G. Woychik
  • Patent number: 6455924
    Abstract: A stress-relieving heatsink structure and method of forming thereof for an electronic package, for instance, that including a semiconductor chip package which is mounted on a wired carrier, such as a circuitized substrate. The heatsink structure is constituted from a plurality of base structures which are joined along slits so as to impart a degree of flexibility to the electronic package inhibiting the forming of stresses tending to cause delamination of the package components.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: September 24, 2002
    Assignee: International Business Machines Corporation
    Inventors: David J. Alcoe, Randall J. Stutzman