Abstract: A substrate to be coated and a measuring body are simultaneously coated with a conductive coating. The measuring body includes two surfaces separated by insulating material and transversely spaced a predetermined distance. One surface extends over the other surface. The surfaces defining the predetermined distance are each metallized and provided with electrical connections. The deposition is terminated when the conductive coating fills the predetermined distance between the surfaces.

Abstract: A photoconductive body of antimony trisulfide is coated on one surface with a layer of an insulating material having particles of a conductive metal dispersed throughout. When used as a target for a vidicon type camera tube, the metal particle-containing insulating layer lowers the dark current of the tube without affecting the photocurrent or spectral response.

Abstract: A metal oxide vapor, such as tungsten oxide, is reacted with a ceramic material, such as aluminum oxide, at a temperature in the range of from about 1300.degree.C to about 1400.degree.C. The metal oxide vapors diffuse into the ceramic material during the reaction. The ceramic material, which now includes tungsten oxide diffused therein, is then subjected to a reducing atmosphere so as to form a cermet region in the ceramic material.

Abstract: The addition of copper, either as a thin film or as an alloy constituent, to nickel-chromium alloys improves the adhesion of such alloys to polymeric substrates and coatings.

Abstract: A plurality of rigid members are utilized for connecting a yoke combination to a platform which is disposed on a television picture tube. The connecting members are shaped such that substantially constant physical contact is maintained between the connecting member, the yoke combination and the platform while the yoke position is adjusted. The yoke combination can be fixed into the optimum position in a permanent nonadjustable fashion through the use of ultrasonic welding or through the use of a small amount of adhesive material.

Abstract: Metal plates of tungsten or molybdenum, having an optimum thickness of 1000 micrometers or less, are bonded to respective cathode and anode electrical coatings on the opposed major surfaces of a semiconductor wafer. The metal plates in turn are conductively bonded to the heat pipe walls which are used as the electrical connectors between the anode and cathode coatings and the external working circuit. Heat that is developed by the surge current flowing through the wafer during the first 6 milliseconds, is dissipated into the plates that are bonded to the opposed major surfaces of the wafer, before the cooling capability of the heat pipes is effective. This provides a greater surge current capability for the semiconductor wafer.

Abstract: A contact of an indium gallium arsenide alloy forms an ohmic contact with a body of n-type or p-type single crystal gallium arsenide of a resistivity of 1 ohm-cm or greater. The method for forming the contact utilizes a low temperature range. This low temperature range lessens the amount of surface disassociation and aids in the prevention of contamination of the body of gallium arsenide.

Abstract: A contact for a silicon device comprises a sintered nickel layer on the silicon, a layer of gold over the sintered nickel layer, and a layer of cobalt on the layer of gold.

Abstract: A weight is placed on the electrical connection pins extending from the stem of a cathode ray tube having a funnel portion and a neck portion. The neck portion is circumferentially cracked completely through between the funnel portion and the stem. The stem and the neck portion are placed within a hermetic chamber which is evacuated until the stem having the weight thereon separates from the funnel portion at the circumferential crack in the neck portion. The separated stem trips a switch which terminates the evacuation and enables the admission of an inert dry gas in a gradual manner to prevent contaminating particles from being conveyed inside the open tube. When the pressure of the inert gas inside the hermetic chamber is substantially equal to atmospheric pressure outside the chamber, the open tube is removed for further processing.

Abstract: An electrochromic display device includes an electrolyte and at least one transparent electrically conductive electrode. An organic insulating layer e.g. a photoresist material, is disposed between the transparent electrode and the electrolyte such that no portion of the transparent electrode is in contact with the electrolyte. The insulating layer protects the transparent electrode from deterioration so as to increase the lifetime of the transparent electrode.

Abstract: An article, such as a microwave waveguide filter, composed of a body of graphite fibre epoxy composite having thereon an electrically conductive layer comprising a thin flash of nickel on the body and a thicker layer of copper on the nickel. The invention also includes a process in which the body is provided with a smooth surface, this smooth surface is then deglazed, or given a slight roughness, a thin flash of nickel is deposited electrolessly on the roughened surface and a heavier coating of copper is electrolessly or electrolytically deposited on the nickel.

Abstract: Method for autocatalytically plating a dielectric surface with a metal such as nickel, cobalt or copper comprising sensitizing the surface with a sensitizing solution comprising both divalent tin, tetravalent tin and a substance furnishing either additional chloride ion (that is, in addition to what may be present in the sensitizer compounds) or bromide ion. The method also includes treating the sensitized surface with a catalyzing solution to provide catalytic nucleating centers and plating the metal on the catalyzed surface.

Abstract: An improved metal coating for a video disc of a grooved polymer disc, a conductive metal coating thereon and a dielectric coating on said metal coating comprising a trilayer film of a first layer of copper about 25-50 angstroms thick, a second layer about 200 angstroms thick of an alloy of nickel, and chromium and, optionally, iron, containing from about 20 to about 30 atomic percent of oxygen, and a third layer, of copper, about 25-50 angstroms thick.

Abstract: Superimposed layers of silicon nitride and borosilicate glasses are etched with a mixture of phosphoric acid, fluoboric acid and glycerine at a temperature of between 100.degree.C and 110.degree.C. The etchang does not adversely affect photoresists so that the etchant can be used to etch through regions of the superimposed layers defined by a photoresist masking layer.

Abstract: A hollow cylindrical insulating body has external longitudinal grooves and aligned apertures with tapered ends to receive the stem leads from an electron tube and support the inner sides thereof. The inner surface of the grooves has two guide tracks with inclined ends to facilitate application and removal of the socket.

Abstract: In one embodiment, a standard dot-type shadow mask color picture tube is modified by (1) increasing the glass transmission of the faceplate, and/or the mask aperture size, to increase the screen brightness; (2) making the color phosphor dots smaller and coating the space between the dots with an opaque and non-reflecting black matrix, to maintain acceptable contrast; and making the color phosphor dots sufficiently larger than the mask apertures that the beam spots on the screen are smaller than the dots (positive tolerance), to facilitate manufacture of the screen; while maintaining good purity tolerance and smaller but acceptable white uniformity tolerance. In another embodiment, a line screen-line grille shadow mask color picture tube is similarly modified.

Abstract: A semiconductor wafer is sandwiched between the ends of two heat pipes. One end of each heat pipe is in electrical and thermal contact with the wafer. The heat pipes are fastened together so that the wafer is held in compression between the two heat pipes. The ends of the heat pipe, are reinforced from within the heat pipe so that the ends will not buckle due to the compression loading of the wafer.

Abstract: A method of transfer recording comprising selectively irradiating a binderless dry film consisting essentially of a dye or pigment capable of absorbing energy and being vaporized without decomposition.

Abstract: A piezoelectric body has a transducer on one surface. The transducer includes an electrically insulating body on the piezoelectric body; the electrically insulating body has a surface relief pattern on a surface which is opposite the piezoelectric body. An electrically conductive layer is on the electrically insulating body on the surface having the relief pattern thereon.The transducer can be formed by means of a master body. A surface of the master body, having a relief pattern thereon, is pressed against the electrically insulating body to form a relief pattern on the electrically insulating body. The electrically conductive layer is then formed on the electrically insulating body on the surface having the relief pattern thereon.

Abstract: The metal end plates of a laser device are provided with relatively large annular hub portions extending outwardly from the laser envelope. Glass mirror blocks are used, each having a small area of a reflective coating in the center of one surface of the block. To bond the block to an end plate of the laser device, the mirror is aligned substantially on the axis of the hub and rf energy is used to heat the end of the hub to a sufficiently high temperature to seal it to the glass. The hub is brought into contact with the glass surface of the mirror block and a seal is made without damage to the mirror coating.