Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Suzuya Yamada0
Yoshitaka Taniguchi0
Atsushi Sakai0
Date of Patent
October 26, 2021
0Patent Application Number
201801160
Date Filed
January 16, 2018
0Patent abstract
A method for producing a ceramic circuit board including a ceramic substrate and a metal circuit formed on the ceramic substrate. The disclosed method includes a step of forming the first metal layer in contact with the ceramic substrate by spraying a first metal powder containing at least either of aluminum particles or aluminum alloy particles together with an inert gas onto a surface of a ceramic substrate from a nozzle, in which the first metal powder is heated to from 10° C. to 270° C. and then ejected from the nozzle 10 and a gauge pressure of the inert gas at an inlet of the nozzle 10 is from 1.5 to 5.0 MPa, a step of subjecting the first metal layer to a heat treatment in an inert gas atmosphere, and the like.
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