Gte Products Corporation

Gte Sylvania Incorporated

Edward D Parent

Charles S Purinton

Charles W Sutter

Ernest A Davey

Norman A Mathieu

Thomas B McDonough

Charles F Jerabek

Chad I Stevens

Harold W Smith

Robert F Scoledge, Jr

Oliver S Smith

Edwin J Spooner

Theodore J Pricenski

A self-resistance-heated electrically-conductive refractory evaporating boat has inclined cavities on its two horizontal surfaces, the cavities being parallel to each other.

Evaporating boat having parallel inclined cavities

Silicon monoxide grains finer than 10 mesh are vacuum hot pressed to form a glass billet which can than be used to provide silicon monoxide of a size and/or shape suitable for vapor deposition purposes.

Process for consolidation of silicon monoxide fines

Self-resistance heated, electrically conductive, refractory evaporating boats containing titanium diboride can be reclaimed for reuse. If there is aluminum adhering to the boats, they are first leached in hot caustic solution to remove the aluminum. After rinsing and drying, the boats are ground to powder which is then screened. The screened powder is used to manufacture new boats.

Evaporating boats containing titanium diboride

A refractory metal silicide sputtering target is made by reacting refractory metal and silicon to about 70 to 90% completion of the reaction, comminuting the material, and then vacuum hot pressing the comminuted material to a high density compact.

Refractory metal silicide sputtering target

A refractory metal silicide sputtering target is made by reacting refractory metal and silicon to about 70 to 90% completion of the reaction, comminuting the material, and then vacuum hot pressing the comminuted material to a high density compact having a theoretical density greater than about 95 percent and forming the metal silicide.

An evaporation heater having a wire wound into a coil and a support wire which extends from one arm of the wire outside of the coil, in spaced proximity therewith, to a central position within the coil but out of electric contact therewith is disclosed. An annular pellet of evaporant material is positioned over the wire support arm within the heater coil but out of contact therewith. The atmosphere around the heater coil and pellet is substantially evacuated and current is directed through such coil to apply radiant heat to the pellet to evaporate same. Because the heater coil is in spaced proximity with the pellet of evaporant material and not in contact therewith, chemical reaction therebetween or erosion is avoided, and a durable evaporation heater of uncomplex construction is provided.

Evaporation heater

A hot pressed intermetallic composite comprises titanium diboride and boron nitride and an effective amount of tungsten to reduce erosion of the composite and reduce the rate at which the electrical resistivity of the composite changes during its use.

Intermetallic composite

An electrically conductive boat for the vacuum evaporation of metals comprises a refractory composition consisting essentially of a conductor of titanium diboride and/or zirconium diboride, a coconductor of silicon carbide and an insulator of boron nitride.

Electrically conductive boat for vacuum evaporation of metals

An elongated, cavity-containing, self-resistance-heated, evaporation boat has a triangular cross-sectional shape at its cavity portion.

Self-resistance-heated evaporation boat

A crucible for containing metal to be evaporated for vacuum deposition is manufactured by winding refractory metal wire into the shape of a helical basket coil. The coil is electrophoretically coated with a primer coat of alumina and is then flame or plasma sprayed with alumina to form the crucible.

Method of making refractory metal-ceramic crucible

In an evaporation source for the vacuum deposition of sublimating material, the evaporant surrounds, and is spaced from, an axially disposed coiled tungsten heater. The evaporated material passes out of the source in an upward direction to deposit on a substrate located above the source.

Growing community of inventors

Hamilton, MA, United States of America

Edward D Parent