Patents by Inventor Randall J. Stutzman
Randall J. Stutzman 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).
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Patent number: 10914535Abstract: A one-piece heat exchanger manufactured using an additive manufacturing process is described. The heat exchanger includes a plurality of channels formed therein. At least some of the plurality of channels may be configured to provide structural support to the heat exchanger to reduce its weight. Different coolant media may be used in a first set and a second set of the plurality of channels to provide different types of cooling in an integrated one-piece heat exchanger structure.Type: GrantFiled: October 3, 2017Date of Patent: February 9, 2021Assignee: Lockheed Martin CorporationInventors: David L. Vos, Ryan M. Alderfer, Randall J. Stutzman
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Patent number: 10461018Abstract: A one-piece heat exchanger manufactured using an additive manufacturing process is described. The heat exchanger includes a plurality of channels formed therein. At least some of the plurality of channels may be configured to provide structural support to the heat exchanger to reduce its weight. Different coolant media may be used in a first set and a second set of the plurality of channels to provide different types of cooling in an integrated one-piece heat exchanger structure.Type: GrantFiled: October 3, 2017Date of Patent: October 29, 2019Assignee: Lockheed Martin CorporationInventors: David L. Vos, Ryan M. Alderfer, Randall J. Stutzman
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Patent number: 10371462Abstract: A one-piece heat exchanger manufactured using an additive manufacturing process is described. The heat exchanger includes a plurality of channels formed therein. At least some of the plurality of channels may be configured to provide structural support to the heat exchanger to reduce its weight. Different coolant media may be used in a first set and a second set of the plurality of channels to provide different types of cooling in an integrated one-piece heat exchanger structure.Type: GrantFiled: September 21, 2015Date of Patent: August 6, 2019Assignee: Lockheed Martin CorporationInventors: David L. Vos, Ryan M. Alderfer, Randall J. Stutzman
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Publication number: 20180043480Abstract: A one-piece heat exchanger manufactured using an additive manufacturing process is described. The heat exchanger includes a plurality of channels formed therein. At least some of the plurality of channels may be configured to provide structural support to the heat exchanger to reduce its weight. Different coolant media may be used in a first set and a second set of the plurality of channels to provide different types of cooling in an integrated one-piece heat exchanger structure.Type: ApplicationFiled: October 3, 2017Publication date: February 15, 2018Applicant: Lockheed Martin CorporationInventors: David L. Vos, Ryan M. Alderfer, Randall J. Stutzman
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Publication number: 20180043481Abstract: A one-piece heat exchanger manufactured using an additive manufacturing process is described. The heat exchanger includes a plurality of channels formed therein. At least some of the plurality of channels may be configured to provide structural support to the heat exchanger to reduce its weight. Different coolant media may be used in a first set and a second set of the plurality of channels to provide different types of cooling in an integrated one-piece heat exchanger structure.Type: ApplicationFiled: October 3, 2017Publication date: February 15, 2018Applicant: Lockheed Martin CorporationInventors: David L. Vos, Ryan M. Alderfer, Randall J. Stutzman
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Publication number: 20170082371Abstract: A one-piece heat exchanger manufactured using an additive manufacturing process is described. The heat exchanger includes a plurality of channels formed therein. At least some of the plurality of channels may be configured to provide structural support to the heat exchanger to reduce its weight. Different coolant media may be used in a first set and a second set of the plurality of channels to provide different types of cooling in an integrated one-piece heat exchanger structure.Type: ApplicationFiled: September 21, 2015Publication date: March 23, 2017Applicant: Lockheed Martin CorporationInventors: David L. Vos, Ryan M. Alderfer, Randall J. Stutzman
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Patent number: 9357670Abstract: A conduction-cooled card assembly is disclosed that includes a conduction-cooling frame, a printed wiring board mounted on the frame, and a wedgelock fastener. The conduction-cooling frame has a thermal management interface adapted to transfer heat from the frame to a chassis, and the wedgelock fastener is adapted to press the thermal management interface of the conduction-cooling frame against a rail of the chassis.Type: GrantFiled: February 18, 2014Date of Patent: May 31, 2016Assignee: Lockheed Martin CorporationInventors: Randall J. Stutzman, Charles H. Dando, III, Clint Long
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Publication number: 20150237763Abstract: A conduction-cooled card assembly is disclosed that includes a conduction-cooling frame, a printed wiring board mounted on the frame, and a wedgelock fastener. The conduction-cooling frame has a thermal management interface adapted to transfer heat from the frame to a chassis, and the wedgelock fastener is adapted to press the thermal management interface of the conduction-cooling frame against a rail of the chassis.Type: ApplicationFiled: February 18, 2014Publication date: August 20, 2015Applicant: Lockheed Martin CorporationInventors: Randall J. Stutzman, Charles H. Dando, III, Clint Long
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Patent number: 7324336Abstract: A cooling assembly is located in a chassis with a conduction-cooled circuit module and permits the conduction-cooled circuit module to be utilized in an air-flow-through or liquid-flow-through circuit module chassis assembly. The cooling assembly may be a removable cooling adapter or may be integral with the chassis. The cooling assembly includes a housing having a first end and a second end and defining one or more fluid passages. The housing further includes a thermal contact surface to contact the conduction-cooled circuit module. The cooling assembly may be configured for air-flow-through or liquid-flow-through cooling of the conduction-cooled circuit module.Type: GrantFiled: September 27, 2005Date of Patent: January 29, 2008Assignee: Lockheed Martin CorporationInventors: David L. Vos, Randall J. Stutzman, Jon Larcheveque, Eugene J. Urda
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Patent number: 7186590Abstract: 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: GrantFiled: September 18, 2003Date of Patent: March 6, 2007Assignee: International Business Machines CorporationInventors: David J. Alcoe, William L. Brodsky, Varaprasad V. Calmidi, Sanjeev B. Sathe, Randall J. Stutzman
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Patent number: 6949415Abstract: 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: GrantFiled: February 26, 2004Date of Patent: September 27, 2005Assignee: International Business Machines CorporationInventors: David J. Alcoe, Thomas W. Dalrymple, Michael A. Gaynes, Randall J. Stutzman
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Patent number: 6830960Abstract: 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: GrantFiled: August 22, 2002Date of Patent: December 14, 2004Assignee: International Business Machines CorporationInventors: David J. Alcoe, Randall J. Stutzman
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Patent number: 6829144Abstract: A chip package is provided with multiple ways of attaching a heat sink directly to the chip carrier. Corner post are mounted to the surface of the chip carrier. A heat spreading plate, with a surface area substantially the same size as the surface area of the chip carrier, is positioned in thermal contact with the surface of a flip chip, for example. The heat spreading plate has corner cuts to accommodate the corner posts of the chip carrier and notches cut into at least two opposing sides. A heat sink plate with holes extending therethrough at each of its four corners is positioned to allow the corner posts of said chip carrier to extend therethrough. Notches cut in two opposing sides of said heat sink plate are aligned with the notches in said heat spreading plate to create slots for a flexible clip to clamp the assembly together. Alternatively, nuts may also be threaded onto the posts to clamp the assembly together.Type: GrantFiled: August 5, 2003Date of Patent: December 7, 2004Assignee: International Business Machines CorporationInventors: Randall J. Stutzman, Jamil A. Wakil
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Patent number: 6793123Abstract: An electrical structure or package, and associated method of formation. A plurality of logic chips is coupled electrically to a memory chip either through conductive members (e.g., solder balls) that interface with the memory chip and each logic chip, or through a sequential logic-to-memory electrically conductive path that includes: a first conductive member electrically coupled to a logic chip; an electrically conductive via path through a circuitized substrate; and a second conductive member electrically coupled to the memory chip. The logic chips are electrically coupled to the substrate either directly through an interfacing solder interconnection from the logic chip to the substrate, or indirectly through the memory chip such that the memory chip is electrically coupled to the substrate by an interfacing solder interconnect. The electrical structure may be plugged into a socket of a backplane of a circuit card.Type: GrantFiled: January 8, 2003Date of Patent: September 21, 2004Assignee: International Business Machines CorporationInventors: Harm P. Hofstee, Eric A. Johnson, Randall J. Stutzman, Jamil A. Wakil
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Publication number: 20040164401Abstract: 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: ApplicationFiled: February 26, 2004Publication date: August 26, 2004Inventors: David J. Alcoe, Thomas W. Dalrymple, Michael A. Gaynes, Randall J. Stutzman
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Patent number: 6744132Abstract: 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: GrantFiled: January 29, 2002Date of Patent: June 1, 2004Assignee: International Business Machines CorporationInventors: David J. Alcoe, Thomas W. Dalrymple, Michael A. Gaynes, Randall J. Stutzman
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Publication number: 20040057214Abstract: 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: ApplicationFiled: September 18, 2003Publication date: March 25, 2004Inventors: David J. Alcoe, William L. Brodsky, Varaprasad V. Calmidi, Sanjeev B. Sathe, Randall J. Stutzman
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Patent number: 6665187Abstract: 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: GrantFiled: July 16, 2002Date of Patent: December 16, 2003Assignee: International Business Machines CorporationInventors: David J. Alcoe, William L. Brodsky, Varaprasad V. Calmidi, Sanjeev B. Sathe, Randall J. Stutzman
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Patent number: 6665186Abstract: A heat dissipating system utilizes a thin layer of a high conductivity liquid metal to provide cooling for electronic sub-assemblies, such as semiconductor chips. The liquid metal preferably is gallium or its alloy which transfers heat from the chip to a heat sink or heat spreader. The system includes one or more vents that allow for filling and venting of the space occupied by the liquid. It also utilizes a flexible seal, such as an O-ring or a membrane held in place with a retainer ring, or a plug that seals the filling vent. The seal flexes to accommodate expansion and contraction of the liquid, as well as phase changes from the liquid phase to the solid phase.Type: GrantFiled: October 24, 2002Date of Patent: December 16, 2003Assignee: International Business Machines CorporationInventors: Varaprasad V. Calmidi, Eric A. Johnson, Randall J. Stutzman
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Publication number: 20030146268Abstract: An electrical structure or package, and associated method of formation. A plurality of logic chips is coupled electrically to a memory chip either through conductive members (e.g., solder balls) that interface with the memory chip and each logic chip, or through a sequential logic-to-memory electrically conductive path that includes: a first conductive member electrically coupled to a logic chip; an electrically conductive via path through a circuitized substrate; and a second conductive member electrically coupled to the memory chip. The logic chips are electrically coupled to the substrate either directly through an interfacing solder interconnection from the logic chip to the substrate, or indirectly through the memory chip such that the memory chip is electrically coupled to the substrate by an interfacing solder interconnect. The electrical structure may be plugged into a socket of a backplane of a circuit card.Type: ApplicationFiled: January 8, 2003Publication date: August 7, 2003Inventors: Harm P. Hofstee, Eric A. Johnson, Randall J. Stutzman, Jamil A. Wakil