Patents by Inventor Daniel Cromwell

Daniel Cromwell 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: 20040247925
    Abstract: A method of making a load plate for an attach hardware assembly of a circuit assembly includes adjusting a curvature of the load plate based on a target load to be applied by the attach hardware.
    Type: Application
    Filed: June 6, 2003
    Publication date: December 9, 2004
    Inventor: Stephen Daniel Cromwell
  • Publication number: 20040240188
    Abstract: A component of an attach hardware assembly is configured for use in securing an Application Specific Integrated Circuit (ASIC) to a circuit board as part of the attach hardware assembly and has a protective coating to protect that component from corrosion.
    Type: Application
    Filed: May 28, 2003
    Publication date: December 2, 2004
    Inventors: Stephen Daniel Cromwell, Xiang Dai, Hamid R. Nikzad
  • Publication number: 20040134680
    Abstract: An assembly is provided having a first circuit board and a second circuit board, each circuit board having a plurality of electrical connection points, electrical connection points on the first circuit board being connected to specified electrical connection points on the second circuit board by solder structures, the first and second circuit boards being stacked with respect to each other and with a defined standoff distance there between, the assembly comprising one or more stops having an inserted portion placed between the first and second circuit board along the perimeter of at least one of the electrical circuit boards, the inserted portion of each of the stops having a fixed, predetermined height.
    Type: Application
    Filed: January 9, 2003
    Publication date: July 15, 2004
    Inventors: Xiang Dai, Mumtaz Hussain, Stephen Daniel Cromwell, Russell Lewis, Laszlo Nobi
  • Patent number: 6746270
    Abstract: A spring-loaded heat sink assembly for a circuit assembly, an installation tool, and a method of installation. The assembly comprises a heat sink, a load plate, and at least one leaf spring positioned therebetween. The load plate comprises elongate shafts having an open channel therethrough which extend through the leaf spring(s) and heat sink and at least partially through the circuit assembly. The elongate shafts provide a space for the leaf spring(s) between the heat sink and load plate. Fasteners extend through the elongate shafts to connect the spring-loaded heat sink assembly to the circuit assembly.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: June 8, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eric C. Peterson, S. Daniel Cromwell
  • Publication number: 20040089937
    Abstract: A method and apparatus to mount a pre-curved bolster plate to a substrate. One embodiment of the invention involves a method to assemble a pre-curved bolster plate on a substrate. A second embodiment of the invention involves a method to fabricate a pre-curved bolster plate. A third embodiment of the invention involves an assembled substrate with a pre-curved bolster plate on the opposite side of the assembled substrate, under an electrical contact area of a component on the assembled substrate.
    Type: Application
    Filed: July 1, 2003
    Publication date: May 13, 2004
    Inventors: James David Hensley, Stephen Daniel Cromwell
  • Publication number: 20040038583
    Abstract: A spring-loaded heat sink assembly for a circuit assembly, an installation tool, and a method of installation. The assembly comprises a heat sink, a load plate, and at least one leaf spring positioned therebetween. The load plate comprises elongate shafts having an open channel therethrough which extend through the leaf spring(s) and heat sink and at least partially through the circuit assembly. The elongate shafts provide a space for the leaf spring(s) between the heat sink and load plate. Fasteners extend through the elongate shafts to connect the spring-loaded heat sink assembly to the circuit assembly.
    Type: Application
    Filed: June 23, 2003
    Publication date: February 26, 2004
    Inventors: Eric C. Peterson, S. Daniel Cromwell
  • Patent number: 6667885
    Abstract: A method and apparatus to attach multiple components to a common heat dissipation device. One embodiment of the invention involves a method to assemble a plurality of components on a substrate to a heat dissipation device. A second embodiment of the invention involves another method to assemble a plurality of components on a substrate to a heat dissipation device containing one or more heat-pipes. A third embodiment of the invention involves an assembled substrate with a plurality of electrical components attached to a common heat dissipation device.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: December 23, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Christopher Gregory Malone, Stephen Daniel Cromwell, Christian Laszlo Belady, Eric Clarence Peterson
  • Patent number: 6634890
    Abstract: A spring-loaded heat sink assembly for a circuit assembly, an installation tool, and a method of installation. The assembly comprises a heat sink, a load plate, and at least one leaf spring positioned therebetween. The load plate comprises elongate shafts having an open channel therethrough which extend through the leaf spring(s) and heat sink and at least partially through the circuit assembly. The elongate shafts provide a space for the leaf spring(s) between the heat sink and load plate. Fasteners extend through the elongate shafts to connect the spring-loaded heat sink assembly to the circuit assembly.
    Type: Grant
    Filed: October 8, 2001
    Date of Patent: October 21, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eric C. Peterson, S. Daniel Cromwell
  • Patent number: 6635513
    Abstract: A method and apparatus to mount a pre-curved bolster plate to a substrate. One embodiment of the invention involves a method to assemble a pre-curved bolster plate on a substrate. A second embodiment of the invention involves a method to fabricate a pre-curved bolster plate. A third embodiment of the invention involves an assembled substrate with a pre-curved bolster plate on the opposite side of the assembled substrate, under an electrical contact area of a component on the assembled substrate.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: October 21, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James David Hensley, Stephen Daniel Cromwell
  • Publication number: 20030016500
    Abstract: A method and apparatus to attach multiple components to a common heat dissipation device. One embodiment of the invention involves a method to assemble a plurality of components on a substrate to a heat dissipation device. A second embodiment of the invention involves another method to assemble a plurality of components on a substrate to a heat dissipation device containing one or more heat-pipes. A third embodiment of the invention involves an assembled substrate with a plurality of electrical components attached to a common heat dissipation device.
    Type: Application
    Filed: July 20, 2001
    Publication date: January 23, 2003
    Inventors: Christopher Gregory Malone, Stephen Daniel Cromwell, Christian Laszlo Belady, Eric Clarence Peterson
  • Publication number: 20020180039
    Abstract: A method and apparatus to mount a pre-curved bolster plate to a substrate. One embodiment of the invention involves a method to assemble a pre-curved bolster plate on a substrate. A second embodiment of the invention involves a method to fabricate a pre-curved bolster plate. A third embodiment of the invention involves an assembled substrate with a pre-curved bolster plate on the opposite side of the assembled substrate, under an electrical contact area of a component on the assembled substrate.
    Type: Application
    Filed: May 29, 2001
    Publication date: December 5, 2002
    Inventors: James David Hensley, Stephen Daniel Cromwell
  • Patent number: 6430050
    Abstract: A method and substrate using a wave spring to clamp a component to the substrate. One embodiment of the invention involves a method to use a wave spring to clamp a component to a substrate. The method includes placing the component on the substrate, placing a structure having holes on the component, placing a number of wave springs on a corresponding number of bolts, inserting the bolts into the holes in the structure, and attaching the bolts to the substrate. A second embodiment of the invention involves a substrate with an electrical contact area, an interposer placed on the electrical contact area, a component placed on the interposer, a block having holes placed on the component, bolts and wave springs inserted in the holes, wherein the bolts and wave springs clamp the component, the interposer and the substrate together on the electrical contact area of the substrate.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: August 6, 2002
    Assignee: Hewlett-Packard Co.
    Inventors: James David Hensley, Stephen Daniel Cromwell, Gregory S. Meyer
  • Publication number: 20020076974
    Abstract: A spring-loaded heat sink assembly for a circuit assembly, an installation tool, and a method of installation. The assembly comprises a heat sink, a load plate, and at least one leaf spring positioned therebetween. The load plate comprises elongate shafts having an open channel therethrough which extend through the leaf spring(s) and heat sink and at least partially through the circuit assembly. The elongate shafts provide a space for the leaf spring(s) between the heat sink and load plate. Fasteners extend through the elongate shafts to connect the spring-loaded heat sink assembly to the circuit assembly.
    Type: Application
    Filed: October 8, 2001
    Publication date: June 20, 2002
    Inventors: Eric C. Peterson, S. Daniel Cromwell
  • Patent number: 6330745
    Abstract: A modular integrated apparatus and method that integrates mechanical, electrical, and thermal management, and that includes a computer processor (CPU), or VLSI module, connected to a circuit board and a thermal plate. The modular integrated apparatus includes a field replaceable apparatus and a receiving apparatus and attenuates EMI. By integrating mechanical, electrical, and thermal management features the modular integrated apparatus improves the process of repairing and upgrading the processor at a customer site by simplifying the modular integrated apparatus package. Additionally, by reducing the number of parts and the amount of circuit board space required to connect a processor to a thermal plate, the present embodiment improves ease of use and acts as a handle in its own installation and removal.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: December 18, 2001
    Assignee: Hewlett-Packard Company
    Inventors: S. Daniel Cromwell, Laszlo Nobi
  • Patent number: 6198630
    Abstract: A method and apparatus for assembling a high speed, high density VLSI module in a computer system that enables attachment, support, electromagnetic interference containment, and thermal management of the VLSI module. The present invention packages a high speed, high density VLSI module within a limited space and in a single assembly that attaches, aligns, and manages electromagnetic interference and heat dissipation of the VLSI module. The present invention aligns a land grid array of a circuit board and an interposer socket assembly, and the interposer socket assembly and a land grid array of the VLSI module; in the single VLSI module assembly. An even, controlled load is placed on the interposer socket interface thereby reducing the risk of damage to the interposer socket from overloaded connections between the land grid array of the VLSI module, the interposer socket assembly, and the land grid array of the circuit board. The present invention is easy-to-use in upgrading and handling of the VLSI module.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: March 6, 2001
    Assignee: Hewlett-Packard Company
    Inventor: S. Daniel Cromwell
  • Patent number: 6191945
    Abstract: A compact cooling method and apparatus arranged for simultaneously drawing heat from both a processor and from the voltage regulator. The invention provides for advantageous arrangement of the voltage regulator and memory proximate to the processor for high speed operation. The invention includes a processor requiring at least one bias voltage, and further includes a companion voltage regulator for providing the bias voltage. The voltage regulator is arranged sufficiently proximate to the processor, so as to limit inductance of electrical coupling therebetween.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: February 20, 2001
    Assignee: Hewlett-Packard Company
    Inventors: Christian L. Belady, S. Daniel Cromwell
  • Patent number: 6084178
    Abstract: A package for heat sinks and semiconductor components that adequately dissipates heat from semiconductor components without damaging or bending the semiconductor component electrical grid terminals and without imposing mechanical stress on the semiconductor component. The package includes both the heat sink and the semiconductor component situated in one unit that minimizes the thermal path. The heat sink and semiconductor component package may be packaged in a field replaceable unit (FRU) and may act as a handle for use in its own replacement. The FRU contains the heat sink and the semiconductor component in one unit, and thereby enables safe, simplified, and cost effective maintenance, including removal and addition of the semiconductor components, outside of the manufacturing environment.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: July 4, 2000
    Assignee: Hewlett-Packard Company
    Inventor: S. Daniel Cromwell
  • Patent number: 6061235
    Abstract: A modular integrated apparatus and method that integrates mechanical, electrical, and thermal management, and that includes a computer processor (CPU), or VLSI module, connected to a circuit board and a thermal plate. The modular integrated apparatus includes a field replaceable apparatus and a receiving apparatus and attenuates EMI. By integrating mechanical, electrical, and thermal management features the modular integrated apparatus improves the process of repairing and upgrading the processor at a customer site by simplifying the modular integrated apparatus package. Additionally, by reducing the number of parts and the amount of circuit board space required to connect a processor to a thermal plate, the present embodiment improves ease of use and acts as a handle in its own installation and removal.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: May 9, 2000
    Assignee: Hewlett-Packard Company
    Inventors: S. Daniel Cromwell, Laszlo Nobi
  • Patent number: 5926370
    Abstract: A modular integrated computer apparatus that includes a CPU or VLSI module connected to a printed circuit board, a power converter, and one or more associated electric power cables; and is a supporting infrastructure that ensures ease of use. The field replaceable apparatus may also function as an EMI enclosure and a heat management device. The field replaceable apparatus may be inserted and removed from a computer system by handles that are attached to the modular integrated apparatus. The installed field replaceable apparatus is positioned to ensure that the CPU module is properly connected to the printed circuit board.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: July 20, 1999
    Assignee: Hewlett-Packard Company
    Inventor: S. Daniel Cromwell
  • Patent number: 5901040
    Abstract: The invention is a heat sink assembly for the removal of heat from semiconductor and power converter modules. The packaging design for semiconductor modules and power converter modules provides efficient heat removal and a tight Faraday Cage. There is a heat transfer layer sandwiched between a CPU module and a power converter module. The heat sink assembly includes a heat transfer layer, a fin stack, and a series of heat pipes. The heat transfer layer has a slot for passage of power cables and sense lines which connects both the CPU module and the power converter module, and the power converter module and the printed circuit board. The heat sink chamber also serves as a Faraday Cage and thus attenuates EMI from the semiconductor module, the power converter module, the power cables, and the sense lines.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: May 4, 1999
    Assignee: Hewlett-Packard Company
    Inventors: Stephen Daniel Cromwell, Christian Belady