Patent ID: 6918530

Claim:
A method for producing a bonded member by bonding a ceramic base material and a metallic member together, the method comprising the steps of: disposing a solder material comprising Au on a surface of the ceramic base material via an active metal layer, melting the active metal layer and the solder material by heating so as to form a precoat layer, disposing the metallic member on a surface of the precoat layer via an insertion metal layer comprising a pure metal which forms an alloy with the precoat layer and has a lower melting point than Au, or an alloy of the pure metal and Au, and melting the insertion metal layer and at least a portion in the vicinity of the interface between the insertion metal layer and the precoat layer by heating so as to bond the metallic member and the precoat layer together, thereby bonding the ceramic base material and the metallic member together with a formation of a bonding layer.