Abstract: Personal illicit drug detecting apparatus is disclosed which includes a substance chemically reactive to a suspected drug. The substance is provided in the form of a layer positioned on at least one finger of a user. The substance can be blended into finger nail polish and positioned on at least one nail by painting or positioned anywhere on a finger in the form of a decal. To test a suspected beverage the user inconspicuously moistens the substance on the finger or finger nail with liquid from a beverage and observes any change (e.g. color, image, etc.) of the layer on the finger nail or finger nail, wherein the change indicates the presence of the suspected drug in the beverage.

Abstract: A predetermined conductor pattern is formed on a sacrificial substrate. The substrate and conductors are covered with an elastomeric material, which is generally an uncured liquid. The elastomer is cured to form a solid. Then the sacrificial substrate is dissolved away leaving the conductor pattern embedded in the elastomeric material.

Abstract: An existing superconducting material is rendered nonsuperconducting without a change in temperature by the generation of phonons which breakup the electron pairing within the superconducting material. The phonons are generated by a piezoelectric film deposited on the superconducting material. A high frequency signal is used to energize the piezoelectric film resulting in piezoelectric acoustic phonon generation within the superconducting material.

Abstract: A method of filtering an AC signal using a piezoelectric beam is provided. A piezoelectric film is formed on a mechanical support and a portion of the piezoelectric film forms a beam which extends beyond the mechanical support so that a cavity is formed underneath the beam, and the beam is free to vibrate in the cavity at a resonant frequency when an acoustic wave is propagated in the piezoelectric layer.A depletion region is formed under a Schottky contact which serves as a drive electrode. An unfiltered AC signal is coupled to the drive electrode thereby establishing an acoustic wave when the unfiltered AC signal comprises a component at the resonant frequency. Surface charge on the piezoelectric film resulting from vibration of the beam allows the resonant frequency component of the unfiltered AC signal to pass through the depletion region. Alternatively, the resonant frequency component can be passed by a tunnel current through the cavity.

Abstract: A process is disclosed for removing carbonaceous material from a surface in a high pressure oxygen plasma. A surface, such as a surface of a silicon ribbon, having a layer of carbonaceous material thereon is positioned in a high pressure plasma reaction volume. A high pressure rf plasma is generated in which the plasma includes reactive and ionic oxygen species. The reactive oxygen species are directed to and react with the layer of carbonaceous material to oxidize that material. The reaction products of the oxidation step include carbon dioxide and, possibly a non-oxidizing ash material which can easily be removed from the silicon surface.