| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a joining method and a joining element that are advantageous for joining a large area and can suppress an increase in manufacturing costs. <P>SOLUTION: In the joining method, metal paste in which a metal nanoparticle is dispersed in an organic solvent is interposed between a first junction section made of metal in a first member and a second junction section made of metal in a second member, the metal nanoparticle is sintered by heating at least the metal paste, and the first junction section is joined to the second one as a joining member having a void inside. In the joining method, at least one of the configuration condition of the metal paste and the sintering condition of the metal nanoparticle is adjusted, thus laminating and forming a plurality of types of junction layers having mutually different porosity, namely the occupation ratio of the void, as the joining member between the first and second junction sections so that the porosity differs between adjacent junction layers. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
