Coating processes – Particles – flakes – or granules coated or encapsulated – Inorganic base
Patent
1996-08-28
1998-05-12
Utech, Benjamin
Coating processes
Particles, flakes, or granules coated or encapsulated
Inorganic base
427220, 4272556, B05D 714, C23C 1412
Patent
active
057501947
ABSTRACT:
A metal paste comprising ultrafine particles of a metal. The particles have a particle size of 1000 angstroms (0.1 micron) or less and are individually uniformly dispersed in an organic solvent. A process for producing a metal paste comprises the steps of evaporating a metal in a vacuum chamber in an atmosphere of an inert gas at a pressure of 10 Torr or less and of collecting the vapor of the evaporated metal on a cooling surface in the form of ultrafine particles having a particle size of 1000 angstroms (0.1 micron) or less, wherein a vapor of an organic solvent is introduced into the vacuum chamber while the metal is being evaporated. A method for preparing a metallic thin film having a thickness of between 0.01 micron and 1 micron uses a metal paste containing ultrafine metal particles having a diameter of 0.1 micron or less uniformly dispersed in an organic solvent. In the method, the metal paste is coated on a substrate, dried and sintered.
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Oda Masaaki
Oshima Michihiro
Setoguchi Kazuhiro
Watanabe Kazuhiro
Chen Bret
Utech Benjamin
Vacuum Metallurgical Co., Ltd.
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