銅／セラミックス接合体、及び、パワーモジュール用基板

摘要

PROBLEM TO BE SOLVED: To provide: a copper/ceramics connected body in which a copper member made of copper or copper alloy and a ceramics member made of nitride ceramics are surely connected to each other; and a power module substrate made of the copper/ceramics connected body.SOLUTION: A copper/ceramics connected body has a copper member 22 made of copper or copper alloy and a ceramics member 11 made of nitride ceramics that are connected to each other. An active element oxide layer 30 containing an active element and oxygen is formed on a connection interface between the copper member 22 and the ceramics member 11. A thickness t of the active element oxide layer 30 is in a range of not less than 5 nm nor more than 200 nm.