Patent ID: 6916739

Claim:
A method for manufacturing a structural element comprising: providing a first part with a surface substantially of copper and adapted to be mechanically and electrically connected to a metal surface of a second part through a hard layer deposited on said surface; depositing hard layer on said surface of said first part, said hard layer consisting of at least one of the following materials; a) SiO x with 1.5≦x≦2; b) TaSiN; c) TiN: d) AlO; e) TiSiN; f) TaN; g) SiN; h) WSiN; i) ReO; j) PdO; k) ZrO; l) YO; m) ZrN; n) NbN; o) VN; p) CuN; whereby said hard layer is amorphous under X-rays; and further comprising the steps of providing the second part with the surface of a metal, and connecting said first part with said second part by bonding said surface of said first part to said surface of said second part through the hard layer.