| 摘要 |
PURPOSE:To evacuate the gas, which generated when soldering wax material are melted, to the outside by a method wherein exhaust vents are formed at a seal cap. CONSTITUTION:A dual in-line type ceramic package is formed of a ceramic substrate 1, seal parts (wax material) 2, a seal cap 3 and exhaust vents 4. The exhaust vents formed at the cap 3 evacuate the gas which is generated when the cap is sealed. The exhaust vents 4 are filled up by soldering when the soldering is solidified, so a soldered sealing of a high airtight property is performed. According to this constitution, the generation of voids can be reduced, when compared with the case of using a soldered cladding cap in flat state. |
