Patent ID: 11952316
Assignee: SHINKO ELECTRIC INDUSTRIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC C  H  B | IPC B  C  H

Claim 14:
15. The ceramic member as claimed in claim 14, further comprising:
an unfired third green sheet made of a ceramic powder, provided on the second green sheet, and covering the hole,
wherein the melting point T1 of the bulk metal film is lower than the firing temperature T2 at which a relative density of each of the first green sheet, the second green sheet, and the third green sheet becomes approximately 90% or higher by firing, such that a combination of the first green sheet, the second green sheet, the third green sheet, and the bulk metal film exhibits:
a decrease in a volume of each of the first green sheet, the second green sheet, and the third green sheet when fired at the firing temperature T2.