| 摘要 |
<p>The invention provides a bonded body including: a ceramic base that is mainly composed of alumina, includes a printed electrode embedded therein and composed of a high-melting-point conductive carbide and alumina, and has a concavity concaved at one surface concaved toward the printed electrode, and a terminal hole extending from the bottom of the concavity to the printed electrode; a terminal that is made of a sintered body of niobium carbide (NbC) /alumina (Al2O3) mixture and is placed in the terminal hole and has a first surface in contact with the printed electrode and a second surface exposed at the bottom of the concavity; a braze layer that is provided in the concavity to be in contact with the second surface of the terminal; and a connecting member made of a high-melting-point metal having a coefficient of thermal expansion close to that of the ceramic base.</p> |
