Other

Hughes Electronics Corporation

The Boeing Company

Hughes Aircraft Company

Carl W Peterson

Mir Akbar Ali

Harry C Jones

M Akbar Ali

Gerald Wayne Swift

Bruce W Buller

Hutan Taghavi

Alfiero Balzano

Armando W Benavides

Florentino V Lee

Kevin M McNab

A microwave monolithic integrated circuit assembly includes a microwave monolithic integrated circuit having an MMIC circuit plane and having a first region of relatively high heat production and a second region of relatively low heat production. A heat-dissipating assembly is in thermal contact with the microwave monolithic integrated circuit. The heat-dissipating assembly has at least two pieces of pyrolytic graphite embedded within a casing. The pieces of pyrolytic graphite include a first piece of pyrolytic graphite underlying the first region and having a high-thermal-conductivity x-direction of the first piece lying within about 20 degrees of a perpendicular to the MMIC circuit plane, and a second piece of pyrolytic graphite underlying the second region and having a high-thermal-conductivity x-direction of the second piece lying within about 20 degrees of the MMIC circuit plane. The heat-dissipating assembly is preferably fabricated by hot isostatic pressing.

Microwave monolithic integrated circuit assembly with multi-orientation pyrolytic graphite heat-dissipating assembly

A packaged electronic structure includes an electronic device, and a package to which the electronic device is affixed. At least a portion of the package is made of a composite material of aluminum nitride dispersed in aluminum. The composite material is preferably prepared by mixing powders of the aluminum nitride and aluminum, and thereafter pressing and sintering the mixture.

Electronic package structure utilizing aluminum nitride/aluminum composite material

A crystal oscillator including a laser light source for emitting a laser beam to an aligned quartz crystal coupled to an oscillator circuit by an optical feedback network. The optical feedback network is responsive to variations of misalignment of the laser beam with the crystal and correction signals generated for introduction back to the crystal to bring its frequency back to a constant standard frequency output.

Laser controlled crystal and dielectric resonator oscillators

An electronic structure includes an electronic device, and a heat sink assembly in thermal contact with the electronic device. The heat sink assembly is formed of a piece of pyrolytic graphite embedded within a metallic casing and intimately contacting an interior wall of the metallic casing. The heat sink assembly is substantially fully dense. The heat sink assembly is fabricated by assembling the piece of pyrolytic graphite within the disassembled elements of the metallic casing, and then simultaneously heating and pressing the initial assembly until it is substantially fully dense.

Electronic structure having an embedded pyrolytic graphite heat sink

A phased array (20) and method for constructing the same are disclosed. The phased array (20) includes a superstructure (22) with cavities (40) therein. A cover plate (28) is mounted to the superstructure (22) and cooperates with the cavities (40) to form cavity style filters therebetween and to form a box-beam type superstructure. Ideally, the superstructure (22) is self supporting. Electronic modules (32) and amplifiers (33) are mounted to the superstructure (22). The method includes machining a block of material to form a webbed superstructure with cavities (40) therein. A cover plate (28) is mounted to the superstructure (22) over the cavities (40) to form cavity style filters. Amplifiers (32) and antenna elements (30) are then affixed to the superstructure (22) and cover plate (28). Ideally, the cover plate (28) is affixed to the superstructure (22) using an electrically conductive adhesive. Preferably, a capacitive probe is inserted into the cavities (40) to electrically couple the filters to the antenna elements (30) and amplifiers (33).

Phased array with integrated bandpass filter superstructure

A ceramic-polymer composite material such as part of a microelectronics package is formed of a ceramic mixture of aluminum nitride and boron nitride, and a low-loss polymeric material. The amount of aluminum nitride is preferably from about 50 to about 90 weight percent of the ceramic mixture, but the relative amounts of the two ceramics may be adjusted to achieve thermal expansion and thermal conductivity properties required for a particular application. A mixture of the ceramics and uncured thermosetting polymeric resin is formed, pressed into the shape of the microelectronics base and/or lid, and heated (either concurrently or subsequently) to compress the mixture and cure the polymer.

Ceramic-polymer composite material and its use in microelectronics

An electronic structure is formed of alternating layers of a metal and a cured ceramic-polymer mixture. The ceramic-polymer mixture is prepared by mixing small ceramic particles into a flowable, curable polymer. The mixture is spread over a first metallic layer and, optionally, B-stage cured. Additional metallic layers and ceramic-polymer layers are added in alternating fashion. Metallic interconnects may be provided through overlying ceramic-polymer layers to a particular metallic layer. The resulting structure is heated to a moderate temperature to cure the polymer.

Multilayer electronic structure and its preparation

Method of making an electronic package structure utilizing aluminum

A headrest suitable to be mounted on a vertical surface such as a rear window for vehicles is disclosed. At least one layer of plastically deformable material and at least one layer of resilient material is used to provide energy absorptive protection for the vehicle occupant's head. Vertical position adjustment may be provided on a transparent backing plate. Various signals and insignia may be inscribed on the side of the backing plate mounted toward a window.

Headrest

A strip made up of a linear series of rigid links hinged together. Magnets are mounted on certain links, at spaced points, for holding the strip on the object to be cut by a torch. Spacers are located on the links on which the magnets are not mounted, holding those links in spaced relation from the object, even with the other links. All the links together define straight lines of their side edges.

Cutting torch guide

A form for preparing a poured concrete hollow shape having a transverse hole through a wall of the shape comprising a form of at least one releasable section, a central core for said hollow, and a core for said transverse hole abutting said central core and said releasable section; said transverse hole core having a surface of a fluorocarbon elastomer where said surface is contacted by poured concrete.

Growing community of inventors

Carson, CA, United States of America

Carl W Peterson