Patents by Inventor David Hembree

David Hembree 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: 20050275084
    Abstract: A compliant contact pin assembly and a contactor card system are provided. The compliant contact pin assembly includes a contact pin formed from a portion of a substrate with the contact pin compliantly held suspended within the substrate by a compliant coupling structure. The suspension within the substrate results in a compliant deflection orthogonal to the plane of the substrate. The contact pin assembly is formed by generally thinning the substrate around the contact pin location and then specifically thinning the substrate immediately around the contact pin location for forming a void. The contact pin is compliantly coupled, in one embodiment by compliant coupling material, and in another embodiment by compliantly flexible portions of the substrate.
    Type: Application
    Filed: June 14, 2005
    Publication date: December 15, 2005
    Inventors: Kyle Kirby, Warren Farnworth, James Wark, William Hiatt, David Hembree, Alan Wood
  • Publication number: 20050247567
    Abstract: An apparatus and method for treating a substrate to deposit, clean or etch material on a substrate use a first horizontal chuck to which a plurality of substrates is attached and electrically charged. Spaced closely to the first horizontal chuck is a coextensive horizontal second chuck which receives and showers reaction solution over all portions of each substrate. During the reaction process, both chucks are substantially submerged in reaction solution within a tank. At least one of the chucks is attached and controllable from a control arm. At least one of the chucks is rotated about a vertical axis at a slow speed during the reaction process. The axes of rotation of the two chucks may be coincident, or the axes may be offset from each other, and/or one or both axes may be offset from the chuck centerpoint(s). One of the chucks may also be periodically moved in a vertical direction relative to the other chuck.
    Type: Application
    Filed: July 15, 2005
    Publication date: November 10, 2005
    Inventors: Salman Akram, David Hembree
  • Publication number: 20050233482
    Abstract: A compliant contact pin contactor card method for making is provided. A compliant contact pin assembly includes a contact pin formed from a portion of a substrate with the contact pin compliantly held suspended within the substrate by a compliant coupling structure. The suspension within the substrate results in a compliant deflection orthogonal to the plane of the substrate. The contact pin assembly is formed by generally thinning the substrate around the contact pin location and then specifically thinning the substrate immediately around the contact pin location for forming a void. The contact pin is compliantly coupled, in one embodiment by compliant coupling material, and in another embodiment by compliantly flexible portions of the substrate.
    Type: Application
    Filed: June 14, 2005
    Publication date: October 20, 2005
    Inventors: Kyle Kirby, Warren Farnworth, James Wark, William Hiatt, David Hembree, Alan Wood
  • Publication number: 20050230809
    Abstract: A compliant contact pin assembly and a contactor card system are provided. A compliant contact pin assembly includes a contact pin formed from a portion of a substrate with the contact pin compliantly held suspended within the substrate by a compliant coupling structure. The suspension within the substrate results in a compliant deflection orthogonal to the plane of the substrate. The contact pin assembly is formed by generally thinning the substrate around the contact pin location and then specifically thinning the substrate immediately around the contact pin location for forming a void. The contact pin is compliantly coupled, in one embodiment by compliant coupling material, and in another embodiment by compliantly flexible portions of the substrate.
    Type: Application
    Filed: June 14, 2005
    Publication date: October 20, 2005
    Inventors: Kyle Kirby, Warren Farnworth, James Wark, William Hiatt, David Hembree, Alan Wood
  • Publication number: 20050230810
    Abstract: A compliant contact pin assembly and a contactor card are provided. A compliant contact pin assembly includes a contact pin formed from a portion of a substrate with the contact pin compliantly held suspended within the substrate by a compliant coupling structure. The suspension within the substrate results in a compliant deflection orthogonal to the plane of the substrate. The contact pin assembly is formed by generally thinning the substrate around the contact pin location and then specifically thinning the substrate immediately around the contact pin location for forming a void. The contact pin is compliantly coupled, in one embodiment by compliant coupling material, and in another embodiment by compliantly flexible portions of the substrate.
    Type: Application
    Filed: June 14, 2005
    Publication date: October 20, 2005
    Inventors: Kyle Kirby, Warren Farnworth, James Wark, William Hiatt, David Hembree, Alan Wood
  • Publication number: 20050230811
    Abstract: A compliant contact pin assembly and a contactor card system are provided. A compliant contact pin assembly includes a contact pin formed from a portion of a substrate with the contact pin compliantly held suspended within the substrate by a compliant coupling structure. The suspension within the substrate results in a compliant deflection orthogonal to the plane of the substrate. The contact pin assembly is formed by generally thinning the substrate around the contact pin location and then specifically thinning the substrate immediately around the contact pin location for forming a void. The contact pin is compliantly coupled, in one embodiment by compliant coupling material, and in another embodiment by compliantly flexible portions of the substrate.
    Type: Application
    Filed: June 14, 2005
    Publication date: October 20, 2005
    Inventors: Kyle Kirby, Warren Farnworth, James Wark, William Hiatt, David Hembree, Alan Wood
  • Publication number: 20050229393
    Abstract: A compliant contact pin assembly method for making is provided. A compliant contact pin assembly includes a contact pin formed from a portion of a substrate with the contact pin compliantly held suspended within the substrate by a compliant coupling structure. The suspension within the substrate results in a compliant deflection orthogonal to the plane of the substrate. The contact pin assembly is formed by generally thinning the substrate around the contact pin location and then specifically thinning the substrate immediately around the contact pin location for forming a void. The contact pin is compliantly coupled, in one embodiment by compliant coupling material, and in another embodiment by compliantly flexible portions of the substrate.
    Type: Application
    Filed: June 14, 2005
    Publication date: October 20, 2005
    Inventors: Kyle Kirby, Warren Farnworth, James Wark, William Hiatt, David Hembree, Alan Wood
  • Publication number: 20050211236
    Abstract: A saw for dicing substrates, such as semiconductor wafers, that has one or more variable indexing capabilities and two or more blades. One of the blades may be moved laterally or vertically, independent of one or more other blades.
    Type: Application
    Filed: May 25, 2005
    Publication date: September 29, 2005
    Inventors: Salman Akram, Derek Gochnour, Michael Hess, David Hembree
  • Publication number: 20050206012
    Abstract: Stress and force management techniques for a semiconductor die to help compensate for stress within the semiconductor die and to help compensate for forces applied to the semiconductor die to minimize damage thereto.
    Type: Application
    Filed: March 16, 2004
    Publication date: September 22, 2005
    Inventors: Warren Farnworth, William Hiatt, Tim Murphy, John Caldwell, Michael Slaughter, David Hembree, Jamie Wanke
  • Publication number: 20050194180
    Abstract: A compliant contact pin assembly, a contactor card, a testing system and methods for making and testing are provided. A compliant contact pin assembly includes a contact pin formed from a portion of a substrate with the contact pin compliantly held suspended within the substrate by a compliant coupling structure. The suspension within the substrate results in a compliant deflection orthogonal to the plane of the substrate. The contact pin assembly is formed by generally thinning the substrate around the contact pin location and then specifically thinning the substrate immediately around the contact pin location for forming a void. The contact pin is compliantly coupled, in one embodiment by compliant coupling material and in another embodiment by compliantly flexible portions of the substrate.
    Type: Application
    Filed: March 2, 2004
    Publication date: September 8, 2005
    Inventors: Kyle Kirby, Warren Farnworth, James Wark, William Hiatt, David Hembree, Alan Wood
  • Publication number: 20050191876
    Abstract: A spring element used in a temporary package for testing semiconductors is provided. The spring element is compressed so as to press the semiconductor, either in the form of a bare semiconductor die or as part of a package, against an interconnect structure. The spring element is configured so that it provides sufficient pressure to keep the contacts on the semiconductor in electrical contact with the interconnect structure. Material is added and/or removed from the spring element so that it has the desired modulus of elasticity. The shape of the spring element may also be varied to change the modulus of elasticity, the spring constant, and the force transfer capabilities of the spring element.
    Type: Application
    Filed: May 5, 2005
    Publication date: September 1, 2005
    Inventors: David Hembree, Salman Akram, Derek Gochnour
  • Publication number: 20050101037
    Abstract: A method for fabricating semiconductor components and interconnects includes the steps of providing a substrate, such as a semiconductor die, forming external contacts on opposing sides of the substrate by laser drilling vias through the substrate, and forming conductive members in the vias. The conductive members include enlarged terminal portions that are covered with a non-oxidizing metal. The method can be used to fabricate stackable semiconductor packages having integrated circuits in electrical communication with the external contacts. The method can also be used to fabricate interconnects for electrically engaging packages, dice and wafers for testing or for constructing electronic assemblies.
    Type: Application
    Filed: November 26, 2004
    Publication date: May 12, 2005
    Inventors: Warren Farnworth, Alan Wood, David Hembree
  • Publication number: 20050093558
    Abstract: A test carrier for testing bumped semiconductor components such dice, chip scale packages, BGA devices, and wafers is provided. The test carrier includes a base for retaining one or more components and contact members for making temporary electrical connections with contact balls on the components (e.g., solder balls). The test carrier also includes terminal contacts formed as hard metal balls, as hard metal balls coated with a non-oxidizing metal layer, or as glass, ceramic or plastic members coated with a conductive material. The contact members on the base protect the contact balls on the components from deformation during testing and handling. The terminal contacts on the test carrier are configured for multiple uses in a production environment without deformation. Also provided is a calibration carrier for calibrating semiconductor test systems for bumped components, and a cleaning carrier for cleaning test sockets for bumped components.
    Type: Application
    Filed: November 29, 2004
    Publication date: May 5, 2005
    Inventor: David Hembree
  • Publication number: 20050084986
    Abstract: A method for fabricating semiconductor components is performed using a laser scanner and a laser imaging process. A substrate, such as a semiconductor wafer, containing multiple semiconductor components, such as dice or packages, is provided. The components include integrated circuits, and component contacts in electrical communication with the integrated circuits. Initially, the components are tested to identify and locate good components and defective components on the substrate. Using data from the testing step and the laser scanner, patterns of conductors are then formed to either repair the defective components, to electrically isolate the defective components for burn-in, or to form component clusters containing only the good components. Alternately, using data from the testing step and the laser scanner, a matching test board can be fabricated, and used to electrically engage the good components, while the defective components remain isolated.
    Type: Application
    Filed: November 5, 2004
    Publication date: April 21, 2005
    Inventors: David Hembree, Alan Wood
  • Publication number: 20050064681
    Abstract: A support structure for use with a semiconductor substrate in thinning, or backgrinding, thereof, as well as during post-thinning processing of the semiconductor substrate includes a portion which extends substantially along and around an outer periphery of the semiconductor substrate to impart the thinned semiconductor substrate with rigidity. The support structure may be configured as a ring or as a member which substantially covers an active surface of the semiconductor substrate and forms a protective structure over each semiconductor device carried by the active surface. Assemblies that include the support structure and a semiconductor substrate are also within the scope of the present invention, as are methods for forming the support structures and thinning and post-thinning processes that include use of the support structures.
    Type: Application
    Filed: September 19, 2003
    Publication date: March 24, 2005
    Inventors: Alan Wood, Warren Farnworth, David Hembree, Sidney Rigg, William Hiatt, Peter Benson, Kyle Kirby, Salman Akram
  • Publication number: 20050046038
    Abstract: A semiconductor component includes a base die and a secondary die stacked on and bonded to the base die. The base die includes conductive vias which form an internal signal transmission system for the component, and allow the circuit side of the secondary die to be bonded to the back side of the base die. The component also includes an array of terminal contacts on the circuit side of the base die in electrical communication with the conductive vias. The component can also include an encapsulant on the back side of the base die, which substantially encapsulates the secondary die, and a polymer layer on the circuit side of the base die which functions as a protective layer, a rigidifying member and a stencil for forming the terminal contacts. A method for fabricating the component includes the step of bonding singulated secondary dice to base dice on a base wafer, or bonding a secondary wafer to the base wafer, or bonding singulated secondary dice to singulated base dice.
    Type: Application
    Filed: October 11, 2004
    Publication date: March 3, 2005
    Inventors: Warren Farnworth, Alan Wood, William Hiatt, James Wark, David Hembree, Kyle Kirby, Pete Benson
  • Publication number: 20050007133
    Abstract: The present invention includes an electronic device workpiece processing apparatus and method of communicating signals within an electronic device workpiece processing apparatus.
    Type: Application
    Filed: August 3, 2004
    Publication date: January 13, 2005
    Inventor: David Hembree
  • Patent number: 6365967
    Abstract: A method for forming an interconnect structure includes providing a substrate, and forming a raised contact member on the substrate. A conductive layer is formed covering at least a portion of the raised contact member. A conductive trace is formed on the substrate in electrical communication with the conductive layer, and an alignment grid is formed on the substrate proximate the raised contact member. An interconnect structure includes a substrate and a raised contact member defined in the substrate. A conductive layer covers at least a portion of the raised contact member, and a conductive trace is in electrical communication with the conductive layer. An alignment grid is proximate the raised contact member.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: April 2, 2002
    Assignee: Micron Technology, Inc.
    Inventors: Salman Akram, David Hembree
  • Patent number: 5559444
    Abstract: A method and apparatus for testing unpackaged semiconductor dice is provided. The method includes forming an interconnect-alignment fixture for use in a test apparatus adapted to hold and apply test signals to the die during burn-in and full functionality testing. The interconnect-alignment fixture includes an interconnect plate formed out of a material such as silicon. The interconnect plate includes raised contact members covered with a conductive layer and adapted to penetrate contact locations on the die to a limited penetration depth. The interconnect-alignment fixture also includes an alignment plate formed with etched alignment openings for aligning contact locations on the die with the contact members on the interconnect plate during the test procedure. In addition, the alignment plate includes access openings for establishing an electrical connection to the contact members on the interconnect plate using wire bonding or mechanical electrical connectors.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: September 24, 1996
    Assignee: Micron Technology, Inc.
    Inventors: Warren Farnworth, Salman Akram, David Hembree
  • Patent number: D340702
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: October 26, 1993
    Inventor: David Hembree