Bae Systems Information and Electronic Systems Integration Inc.

Other

Ovonyx Inc.

Electronic Systems Integration Inc.

Bae Systems Information and Ovonyx, Inc

John C Rodgers

Thomas J McIntyre

Jon Maimon

Keith K Sturcken

John D Davis

Tushar K Shah

Peter W Spreen

Richard Berger

Bin Li

Nadim F Haddad

Joseph R Marshall, Jr

Charles A Trowbridge

Steve Hudgens

A system and method for improving the prompt dose radiation response of mixed-signal integrated circuits is disclosed. An internal analog circuit inside a mixed-signal integrated circuit generates an internal analog reference voltage that has been used for various purposes in the integrated circuit. At least one external capacitor is added either internal or external to a device package of the integrated circuit. The external capacitor reduces any change in the internal reference voltage due to prompt dose radiation by stabilizing the internal reference voltage and thus improves prompt dose radiation response of mixed-signal integrated circuits. A much greater value of capacitance may be provided without increase in dielectric rupture suceptability or decrease in manufacturing yield which may be associated with added on-chip capacitance. This increased capacitance primarily reduce the amount of disturbance caused to the internal node during a prompt dose radiation event.

Method for improving prompt dose radiation response of mixed-signal integrated circuits

A non-volatile single-event upset (SEU) tolerant latch is disclosed. The non-volatile SEU tolerant latch includes a first and second inverters connected to each other in a cross-coupled manner. The gates of transistors within the first inverter are connected to the drains of transistors within the second inverter via a first feedback resistor. Similarly, the gates of transistors within the second inverter are connected to the drains of transistors within the first inverter via a second feedback resistor. The non-volatile SEU tolerant latch also includes a pair of chalcogenide memory elements connected to the inverters for storing information.

Non-volatile single-event upset tolerant latch circuit

A rotary engine configured to use compressed air or high pressure steam to produce power. It has a casing with two peripheral exhaust ports each adjacent to a flattened area, a rotor having three slotted pistons, and a center valve with two opposed inlet ports that provide high pressure steam or compressed air to the pistons. Each rotor revolution produces three power strokes. Furthermore, the volume of air used for a single cycle is reduced, as a result of the air traveling through its pistons. Also, the engine stops when the vehicle it powers is at rest, and a spring inside each piston causes its angled tip to contact the rotary chamber upon start up. In addition, it is inexpensive to manufacture, as there is not much tooling needed to make the rotary engine, and it has only four moving parts, its rotor and the three pistons attached to it.

Rotary engine

Chalcogenide technology is used for radiation hardening for spaceborne systems and more particularly in C-RAM form for processors, field programmable gate arrays, startup RAMs, shadow storage and single-chip systems to protect these units.

Use of radiation-hardened chalcogenide technology for spaceborne reconfigurable digital processing systems

A method and system of forming vertical optical interconnects in optical integrated circuits is disclosed. The method includes forming a first optical transmission layer over a substrate. A first cladding layer is then formed on the first optical transmission layer and portions of the first cladding layer removed to form an angled sidewall in the first cladding layer. An optical interconnect layer is formed on the angled sidewall of the first cladding layer and on an exposed portion of the first optical transmission layer.

Method of forming interlayer connections in integrated optical circuits, and devices formed using same

A method for making a tapered opening. The defined tapered opening is useful for the fabrication of programmable resistance memory elements. The programmable resistance memory material may be a chalcogenide.

Method for making tapered opening for programmable resistance memory element

The semiconductor device comprising a chalcogenide phase change material. The chalcogenide material being programmed from one resistance state to another resistance state by applying a programming current to a resistor which is in thermal contact with the chalcogenide material. The semiconductor device may be used as memory element or as a programmable fuse.

Programmable resistance memory element with indirect heating

A method for manufacturing sidewall contacts for a chalcogenide memory device is disclosed. A first conductive layer is initially deposited on top of a first oxide layer. The first conductive layer is then patterned and etched using well-known processes. Next, a second oxide layer is deposited on top of the first conductive layer and the first oxide layer. An opening is then etched into at least the first oxide layer such that a portion of the first conductive layer is exposed within the opening. The exposed portion of the first conductive layer is then removed from the opening such that the first conductive layer is flush with an inner surface or sidewall of the opening. After depositing a chalcogenide layer on top of the second oxide layer, filling the opening with chalcogenide, a second conductive layer is deposited on top of the chalcogenide layer.

Method for manufacturing sidewall contacts for a chalcogenide memory device

A method for manufacturing a programmable chalcogenide fuse within a semiconductor device is disclosed. A resistor is initially formed on a substrate. Then, a chalcogenide fuse is formed on top of the resistor. Finally, a conductive layer is deposited on top of the chalcogenide fuse for providing electrical conduction to the chalcogenide fuse.

Method for manufacturing a programmable chalcogenide fuse within a semiconductor device

Programmable chalcogenide fuse within a semiconductor device

An apparatus for mounting objects within a panel hole, and method of use, the apparatus comprising a housing having a flanged opening in one end and a plurality of flat coil springs each having a free inner end and an outside edge attached to the housing adjacent to the flange so that upon installation of the housing into the panel hole, the flange engages the exposed surface of the panel and the springs become biased against the hidden panel surface for secure vibration-resistant mounting of the housing within the hole, as well as rapid releasable installation and removal of the housing from panels of any thickness dimension. The apparatus can be made theft-resistant through placement of apertures in the flange, use of an installation and removal tool for unrolling the springs so that they are stretched to rapidly pass through the flange apertures, and creation of slight inward folds in the free inner ends of each coil spring for engaging the tool, or for engaging the panel if removal of the housing is attempted without the tool. The present invention can be used with panels of any thickness, when installed it is vibration-resistant, and it can be securely positioned within inaccurately cut panel holes. Easily detachable springs are also contemplated in the theft-resistant embodiment. Applications may include, but are not limited to, use in the rapid releasable mounting of lighting fixtures within ceiling panels, as well as the vibration-resistant mounting of industrial and motor vehicle gauges.

Mounting apparatus and method of use

A device for facilitating forced insertion of a golf tee into a ground surface at a predetermined height. The inventive device includes a clamp for engaging a shaft of a golf tee. A positioning screw engages a head of the golf tee such that a predetermined length of the shaft projects beyond the clamp for insertion into the ground.

Adjustable tee setting device

A device arranged to be releasably mounting within a hole in a panel, e.g., a ceiling, to hold a lamp bulb and associated reflector or any other member therein. The device comprises a tubular body, a flange for engaging one side of the panel, and plural, equidistantly, peripherally-spaced, flexible arms for engaging the other side of the panel. Each arm extends outward from the body and is moveable from an extended position to a retracted position and vice versa. The arms are moved from the extended position to the retracted position when the body is pushed into the hole while being twisted about its longitudinal central axis in one rotational direction. The arms automatically move back to the extended position when the device is in place to hold the device securely within the hole. The device can be removed by pulling it out of the hole while twisting it about its longitudinal axis in the same rotational direction as used to insert it, whereupon the arms flex to the retracted position. An adaptor is provided for mounting in the device to hold different sized members, e.g., bulbs and reflectors.

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Fairfax Station, VA, United States of America

John C Rodgers