KR900003398A - Densely arrayed metal microspheres coated base - Google Patents

Abstract

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Description

Densely arrayed metal microspheres coated base

Since this is an open matter, no full text was included.

1 is a schematic diagram of an apparatus used to carry out the method of the present invention.

Claims (19)

The base has a discontinuous metal coating, the metal coating having a discontinuous, densely arranged array of metal microspheres. The base according to claim 1, wherein the microspheres are deformable. The base of claim 1 wherein the metal is selected from the group consisting of lead, tin, indium bismuth zinc, cadmium, zinc, thallium, alloys and mixtures of these metals. The base of claim 2, wherein the metal coating allows passage of visible light. The base of claim 1, wherein the microspheres have a diameter in the range of about 0.1 μm to about 5.0 μm. The base of claim 1 wherein the base is selected from the group having polyimide and aluminum oxide coated aluminum. The base of claim 1, wherein the protruding regions of the metal microspheres comprise at least 60% of the base surface area. 5. The base of claim 4, wherein the coating comprises microspheres that are electrically conductive. A method of forming a discontinuous metal coating having an array of metal microspheres densely placed on a base, the method comprising the steps of: (a) providing a base with a weld surface in a chamber, (b) metal vapor in the chamber And (c) depositing metal vapor on the welding surface, wherein an array of discontinuous and densely arranged metal microspheres is formed on the welding surface. 10. The welding method according to claim 9, wherein a vacuum is provided before the metal vapor is formed in the chamber. 10. The welding method according to claim 9, wherein the metal has a melting temperature Tm and when the metal is welded to the welding surface, the welding surface has an effective temperature Tm or higher. 10. The method of claim 9, wherein the metal is selected from the group consisting of lead, tin, indium, bismuth, zinc, cadmium, thallium, alloys of these metals, mixtures. The method of claim 9, wherein the microspheres have a diameter in the range of about 0.1 μm to about 5.0 μm. The method of claim 13, wherein the microspheres have a diameter in the range of about 0.1 μm-2 μm. 10. The welding method according to claim 9, wherein the metal vapor is deposited on the welding surface by a condensation means. 10. The method of claim 9, wherein the vapor is produced by vaporizing the metal by electron beam radiation means. A method of forming an electrically conductive passageway by applying a pressure to a base with a discontinuous metal coating having an array of densely placed metal microspheres, the pressure may cause any arrangement of microspheres to form an electrical passage between the microspheres. An electric passage forming method, characterized in that it is sufficiently deformed. A base with a discontinuous metal coating as prepared by the method of claim 9. A base with a discontinuous metal coating, such as produced by the method of claim 11. ※ Note: The disclosure is based on the initial application.