Method for forming functional part in minute space

Abstract

A method for forming a functional part in a minute space includes the steps of; filling a minute space with a dispersion functional material in which a thermally-meltable functional powder is dispersed in a liquid dispersion medium; evaporating the liquid dispersion medium present in the minute space; and heating the functional powder and hardening it under pressure.

What is claimed is: 
     
         1 . A method for forming a functional part in a minute space, comprising the steps of:
 filling a minute space with a dispersion functional material in which a thermally-meltable functional powder is dispersed in a liquid dispersion medium;   evaporating the liquid dispersion medium present in the minute space; and   heating the functional powder and hardening it under pressure.   
     
     
         2 . The method of  claim 1 , wherein the functional powder is a low-melting metallic powder. 
     
     
         3 . A method for forming a functional part in a minute space, comprising the steps of:
 filling a minute space with a dispersion functional material in which a functional powder and a binder powder are dispersed in a liquid dispersion medium;   evaporating the liquid dispersion medium present in the minute space; and   heating the functional powder and the binder powder and hardening them under pressure.   
     
     
         4 . The method of  claim 3 , wherein the functional powder and the binder powder comprise a high-melting metallic powder and a low-melting metallic powder. 
     
     
         5 . A method for forming a functional part in a minute space, comprising the steps of:
 filling a minute space with a dispersion functional material in which a functional powder is dispersed in a liquid dispersion medium;   evaporating the liquid dispersion medium present in the minute space;   filling a liquid binder into a gap between particles of the functional powder present in the minute space; and   hardening the functional powder and the liquid binder under pressure after the liquid binder is reacted with the functional powder by a heat treatment.   
     
     
         6 . The method of  claim 5 , wherein the functional powder is a ceramic powder and the liquid binder is a liquid glass. 
     
     
         7 . The method of any one of  claims 1  to  6 , wherein the liquid dispersion medium is an aqueous dispersion medium or a volatile organic dispersion medium.