Abstract: Metallic osmium on SiC (either .beta. or .alpha.)forms a contact that remains firmly attached to the SiC surface and forms an effective barrier against diffusion from the conductive metal. On n-type SiC, Os forms an abrupt Schottky rectifying junction having essentially unchanged operating characteristics to at least 1050.degree. C. and Schottky diodes that remain operable to 1175.degree. C. and a barrier height over 1.5 ev. On p-type SiC, Os forms an ohmic contact with specific contact resistance of <10.sup.-4 ohm-cm.sup.2. Ohmic and rectifying contacts to a TiC layer on a SiC substrate are formed by depositing a WC layer over the TiC layer, followed by a metallic W layer. Such contacts are stable to at least 1150.degree. C. Electrodes connect to the contacts either directly or via a protective bonding layer such as Pt or PtAu alloy.

Abstract: A dispenser for a pump-type container comprises a case having at least one wall mounting bracket and a floor surrounded by upright side walls. A lid hinged to the case has a peripheral skirt at least partially covering an upper portion of the case. The lid has a rest position and a depressed position, with a clearance being provided between the lid and the case when the lid is in the rest position. An aperture is formed in the lid and adapted to receive a nozzle of a pump-type container, such that the clearance between the lid and the case is sufficient to activate a pump mechanism of a pump bottle located within the case when the lid is depressed.

Abstract: A wall mountable holder to dispense the contents of an aerosol can, the holder comprising an outer casing of two parts dimensioned to contain within it a pressurized can, the two parts of said container being pivotally attached at their upper end and having projections to engage the dispensing nozzle of said can so that upon relative movement of said two parts toward each other beyond a predetermined position said means cause movement of said nozzle to thereby release contents from within said can.