| 摘要 |
PURPOSE:To prevent the generation of cracks in a sealing section, and to enable hermetic sealing by sealing a substrate manufactured by a material mainly comprising silicon carbide and a cap by amorphous sealing glass. CONSTITUTION:A pellet 3 consisting of silicon is fixed at the central section of one surface of a substrate 1 through a gold-silicon eutectic section 2. Electrode sections for the pellet 3 are bonded and connected with the inner end sections of leads 5 as external terminals by wires 4. The leads 5 are sealed hermetically under the state in which they are held between a cap 7 made of alumina or mullite and the SiC substrate 1 by sealing glass 6. The sealing glass 6 is composed of amorphous sealing glass mainly comprising lead, and has a small thermal expansion coefficient and is fixed positively. |
