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Silicon carbide materials will revolutionize semiconductor devices for military and commercial markets. The material's wide bandgap, high electric field breakdown, high thermal conductivity give SiC capabilities that far exceed those of silicon or gallium arsenide. Despite significant progress in silicon carbide development, fundamental defects--most prominently micropipes--persist. If SiC is to s ...

The properties of single-crystal silicon carbide are such that electronics devices from this material have demonstrated remarkable performance characteristics. Despite the material's promise, the material has not yet found acceptance in mainstream device markets because of the material's high cost, among other reasons. This Phase I SBIR proposes an SiC source powder with unique properties which wi ...

A novel technological approach was recently devised by Sumi Tech engineers to fabricate multilayer electronic components, which enables the manufacture of devices with very high volumetric efficiency and reliability. Inexpensive electrode materials such as copper, or aluminum are potential candidates, since the process takes place at relatively low ambient temperature (e.g., less than 400 C), thus ...

"Cermet, in collaboration with researchers at Georgia Institute of Technology, propose to implement a lattice matched AlInN using existing substrate technology. The implementation of a lattice matched substrate promises to produce near dislocation freeAlInN heterojunction for the first time while the use of an existing substrate technology dramatically lowers development cost and reduces the devel ...

"Deliver a methodology or system architectural model of secure broadband wirelesstechnology, capable as a stand-alone medium or interconnected to existingnetworks. This is a multi-layer security, network system concept with robustfeatures of short (less than 300 feet) to long (greater than 2 miles) rangecommunications under civil and austere conditions. This methodology or systemmodel is scalable ...

"Starting with an aluminum alloy, it is proposed to form a new type of lightweight composite material that would integrally incorporate a metal-ceramic composite zone to strengthen and/or increase wear resistance. The amount of ceramic material in thecomposite zone and the thickness of the zone would be empirically optimized to strengthen the material or to increase the wear resistance. This proce ...

"Free-form optics such as mirrors for surveillance, UV lenses for lithography, X-ray mirrors for X-ray lithography, conformal optics (spherical and aspherical), laser rods and windows are some of the important defense and commercial applications of opticmaterials. The demand on optical performance of these materials is increasing significantly. To achieve high optical performance, ultraprecision p ...

"Vibration control techniques for on-board components are very essential during high attitude, weight shift and acceleration in a spacecraft. Conventional mechanisms of damping such as hydraulic dampers and springs do not exhibit such high-speed responsesrequired by these applications. The other class of sensor-actuator controlled damping technique based on piezoelectricity with electronic sensor ...

"Missile Defense Weapons currently under development (THAAD, NMD, Standard Missile 3, or SM3) employ a hit-to-kill strategy to destroy enemy missiles at all stages of their trajectories. To achieve precise and repeatable divert thrust for the kill vehicle.Corrosion-resistant propulsion materials and components are required. New corrosion-resistant materials are required to enable digital propuls ...