Pratt & Whitney Rocketdyne, Inc.

Aerojet Rocketdyne of De, Inc.

The Boeing Company

United Technologies Corporation

Thomas A Hertel

Erich H Soendker

Horacio Saldivar

Daniel Brian Tan

Thomas H Lynch

A substrate includes a metal portion and an underplate that is laser sintered to the metal portion. The metal portion has a melting point that is lower than a sintering temperature of the underplate.

Substrate having laser sintered underplate

A multi-layer substrate includes a ground structure, a plurality of dielectric layers on the ground structure and a plurality of conductive layers separating the plurality of dielectric layers. The conductive layers include a first conductive layer and a second conductive layer and a connection electrically coupling the first conductive layer and the second conductive layer. The first conductive layer and the ground structure are configured to define a first parasitic capacitance there between and the first conductive layer and the second conductive layer are configured to define a second, negating parasitic capacitance there between.

Conductive emissions protection

An optical voltage converter has an emitter array and a receiver array. Each of the emitter array and the receiver array have at least one LED. The LEDs are arranged such that light from the emitter LED directly strikes the receiver LED.

Optical power converter

According to one non-limiting embodiment, a low conductive emission substrate includes a plurality of thin high dielectric strength insulating layers separated by a corresponding plurality of conductive layers, wherein one of the plurality of conductive layers is shorted to another one of the plurality of conductive layers.

A semiconductor device includes an inorganic coating layer to at least partially cover a junction termination extension.

Semiconductor device having an inorganic coating layer applied over a junction termination extension

A passive electrical component includes an inorganic dielectric coating layer laser applied to a conductor layer.

Passive electrical components with inorganic dielectric coating layer

A voltage excursion control system for limiting transient voltage peaks in electrical circuits otherwise occurring across selected components therein in response to changing conditions in such circuits has a plurality of silicon carbide diode dice series-interconnected in a succession such that each cathode region of each die face toward a common end of the succession. First and second electrically conductive electrodes are each electrically interconnected with a corresponding one of the dice at opposite ends of the succession.

Silicon carbide diode voltage limiter

A high-temperature, regulated power supply uses wide band gap transistors to drive a Royer circuit. Pulses output from the Royer circuit are gated through a pulse width modulator to control the duty cycle of wide band gap transistors that drive an output transformer. The output of the transformer is rectified and filtered to provide the regulated D.C. output voltage. Regulation is accomplished by sampling the output voltage, comparing it to a reference voltage and using the difference between the output voltage and the reference voltage to control the pulse width modulator. High temperature operability is provided by using wide band gap transistors and iron or steel core transformers. This technique also provides a radiation hard assembly.

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Santa Clarita, CA, United States of America

Thomas A Hertel