| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an insulating container having an insulating base and a lid, which can allow an electronic part to normally operate for a long term of time without causing any deterioration of characteristics of the part, by air-tightly sealing the electronic part therein with a high sealing pressure, reliably and firmly fixing the electronic part accommodated within the container and effectively preventing oxidation and corrosion of electrodes on the electronic part. SOLUTION: A container 14 includes an insulating base 11 and a lid 12. The insulating base 11 is joined to the lid 12 through sealing material 17 so that an electronic part 13 can be air-tightly accommodated within the container 14. The sealing material 17 is glass material which contains a glass component including 30-50 weight % of lead oxide, 1-6 weight % of boron oxide, 7-15 weight % of zinc oxide, 21-30 weight % of sodium fluoride and 14-20 weight % of bismuth oxide and also contains 5-24 weight % of lead titanate compound as an additive filler. As a result, the softening melting temperature of the sealing material 17 can be lowered to prevent the melting heat of the sealing material 17 from deteriorating characteristics of the part 13.</p> |
