Patent ID: 8439252
Filing Date: 2013-05-14
Classification: B23K,F28F,H01L,Y10T

Abstract:
1. Method for bonding two partially form-fitting surfaces of two metal bodies which comprise the same metal, comprising the steps of: (a) generating a first layer on the partially form-fitting surface of a first one of the two bodies, the first layer comprising a mixture of the metal and the oxide of the metal; (b) generating a second layer on the first layer, the second layer comprising the metal but less oxide of the metal than does the first layer; (c) placing the partially form-fitting surfaces of the two metal bodies adjacent to each other; (d) heating the bodies placed adjacent to each other to a temperature which lies in a target range below the melting point of the metal and above a eutectic temperature of a eutectic of the metal and the metal oxide; and (e) holding the temperature within the target range over a predetermined or a controllable duration of time two bond the two partially form-fitting surfaces of the two metal bodies together.