| 摘要 |
<p>The purpose of the present invention is to sufficiently increase the strength of a bonded body of a metal member and a ceramic member joined together. The bonded body (10) includes a plate-shaped alumina or aluminum nitride ceramic member (12) and a Mo or Ti terminal (14) having a Ni coating, an Au coating, or a Ni-Au coating (Au on Ni) and joined to a recess (12a) in the ceramic member (12) with a joint layer (16) therebetween. The joint layer (16) contains Au, Ge, Ag, Cu, and Ti and is in contact with at least a part of the side surfaces (herein the entire side surfaces) and the bottom surface of the recess (12a). Ti is rich in the joint interface between the joint layer (16) and the ceramic member (12). The percentage (porosity) of the sum of the cross-sectional areas of pores to the cross-sectional area of the joint layer (16) in a cross-section taken across the thickness of the bonded body (10) is 0.1% to 15%.</p> |
