Feldman Technology Corporation

Other

Thermo Stone Usa, LLC

Anthony, Inc.

Bernard Feldman

Douglas McLean

Dusan P Pope

Kenneth M Provancha

Gary Wood

A method of etching a metal oxide film includes depositing a metal (M) on the metal oxide film and contacting the metal oxide film and the metal (M) with an etch liquid comprising an acid (A) and a metal dissolution agent (X). The method can avoid patchwise etch.

Method for etching

Metal oxide films are etched with a metal and an etch liquid containing an acid and a metal penetration control agent.

Etched metal oxide film

A computerized Expressway Control System functions to identify the occupancy status of a vehicle such that solo driver vehicles can be automatically charged for use of the expressway. The system requires no additional equipment in the vehicle. Enforcement is readily achieved by an automated audit system.

Expressway control system

A thin film tin-oxide heater (,) including an annular inner heat region (,), an annular outer heat region (,), a first silver buss bar (,), and a second silver buss bar (,). The radius (r,) between the inner and outer heat regions is selected so that the resistance per unit square and power per unit area for the inner heat region approximates the resistance per unit square and power per unit area for the outer heat region.

Temperature controlled thin film circular heater

Masked tin oxide films are etched with an etchant composed of hydrochloric acid and a penetration control agent. The exposed metal oxide film is reduced to metallic tin by the action of active hydrogen (H,) produced in the reaction of zinc with acid, and etching stops when the metallic tin becomes impenetrable to H,.

Masked tin oxide films are etched with an etchant composed of a zinc metal, an acid and a Ni,penetration control agent. The exposed metal oxide film is reduced to metallic tin by the action of active hydrogen (H,) produced in the reaction of zinc with acid, and etching stops when the metallic tin becomes impenetrable to H,.

Masked tin oxide films are etched with an etchant composed of zinc metal, HCl, and a penetration control agent. The exposed metal oxide film is reduced to metallic tin by the action of active hydrogen (H,) produced in the reaction of zinc with acid, and etching stops when the metallic tin becomes impenetrable to H,.

An improved technique for driving matrix displays, and in particular, passive matrix displays including row and column configurations of electro-optical display elements (e.g., liquid crystal, LED, plasma, and Electroluminescent). By storing and analyzing illumination information about display elements prior to excitation, a matrix display is more effectively driven. Also, by using the method, the selection ratio in LCD displays is improved.

String addressing of passive matrix displays

A thin film thermocouple having junctions (2, 7) of metal and semiconducting metal oxides such as tin oxide/silver, and used as surface temperature sensors in conjunction with thin film heating elements (1) to control temperature.

Thin film metal/metal oxide thermocouple

An improved technique for driving matrix displays, and in particular, passive matrix displays including row and column configurations of electro-optical display elements (e.g., liquid crystal, LED, plasma, and Electroluminescent). By analyzing illumination information about display elements, a matrix display is more effectively driven. Also, by using the method, the selection ratio in LCD displays is improved.

Sting addressing of passive matrix displays

The present invention provides for transparent electrodes useful in display devices. The transparent electrodes are deposited on a substrate and formed with one or more apertures on their top surface that permit a second electrode, formed on the transparent electrode, to dip down and make contact with the substrate. The second electrode is made of an opaque conductive material that lowers the electrical resistance of the transparent electrode.

Transparent electrodes

Method for etching metal oxide films, especially tin oxide on a substrate in which a metal (Zn) is deposited on said film and etching is performed by a mixture of an acid, such as hydrochloric acid (HCl) and a metal dissolution agent, such as ferric chloride. The hydrochloric acid reacts with the zinc to produce active hydrogen which reduces the tin oxide to tin, which in turn is etched with the hydrochloric acid.

A voltage regulator circuit includes a circuit input and a circuit output for coupling to a load. A circuit interrupt element is coupled between the input and the load for breaking the circuit between the input and the load. A sensing circuit coupled to the output senses when a signal applied to the load exceeds a defined limit. A trigger circuit coupled to the sensing circuit causes the circuit interrupt element to trip when the sensing circuit senses a signal which exceeds the defined limit.

Voltage regulator circuit

An electric heating unit for attachment to a rear surface of a mirror to reduce the formation of condensation on the mirror surface including a moisture resistant low heat conductivity heat barrier formed of a layer of closed cell plastic foam, a length of insulated low resistance heater wire mounted on the surface of the foam layer and connected to a voltage source, an aluminum foil covering the heater wire and the surface of the foam layer and adhesively connected thereto, an adhesive layer covering the outer surface of the aluminum foil, and a peel-off backing covering the adhesive layer to permit attachment of the heater unit to a mirror when the backing is removed. The components of the unit are selected to produce less than 120 watts per square meter of heat to a mirror to which the unit is attached.

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Watsonville, CA, United States of America

Bernard Feldman