Wisconsin Alumni Research Foundation

Dovas A Saulys

Thomas Francis Kuech

Aref Chowdhury

Leon McCaughan

Vladimir A Joshkin

John Roberts

Chad Staus

Silane gas precursor compounds having the formula (I): wherein R, R, and Reach can independently be hydrogen or halogen and wherein the cyclohexadiene ring can have one or more substituents selected from the group consisting of a saturated or unsaturated, straight chain or branched alkyl group, a halogen, NO, and C&#x2261;N are disclosed. In one form, the silane gas precursor compound is cyclohexadien-2,4-ylsilane, an air-stable liquid, that can be thermolyzed in a pyrolysis process to efficiently generate high purity silane gas. The compounds of the present invention can thus serve as a 'point-of-use' precursor for silane gas.

Cyclohexadien-2,4-ylsilane and its derivatives, synthesis of the same, and the pyrolysis of the same to silane

Metal oxide films such as lithium niobate are formed in an amorphous state on a substrate such as lithium niobate and can be readily etched by conventional liquid or dry etchants. The amorphous film may then be converted by annealing to a crystalline form well suited to formation of electro-optical devices.

Thin film lithium niobate and method of producing the same

Electro-optic elements are formed in metal oxide films, such as lithium niobate, on a substrate such as lithium niobate for utilization in electro-optical devices. The electro-optic elements include trenches in the lithium niobate selected to improve the performance of the device. Traveling wave modulators may be formed with a waveguide having first and second arms, electrodes over the lithium niobate layer, and trenches formed in the layer to focus the electric field in the waveguide, resulting in improved modulator performance.

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Seoul, South Korea

Dovas A Saulys