Production of ceramic conductor substrate

摘要

Production of a ceramic-conductor substrate (7) comprises (a) forming a laminating body (200), in which an Al2O3 layer (1) which was sintered not at 800-1000 deg C. is applied on the surface of a ceramic green plate (20) containing glass, which is sintered at 800-1000 deg C.(b) forming a ceramic sintered substrate (2), in which the ceramic green plate (20) is sintered and the Al2O3 layer (10) is formed by calcining the laminated body at 800-1000 deg C. to a porous Al2O3 layer (1), and the glass flows into the porous Al2O3 layer (1) so that a part of the porous Al2O3 layer (1), which is filled with the glass, with which the ceramic sintered substrate (2) is connected; (c) removing an Al2O3 part (109) of the porous Al2O3 layer (1) not connected to the surface of the ceramic sintered substrate (2), and imprinting a paste to form a conducting pattern (3) on the surface of the porous Al2O3 layer (1); and (d) adhering the pattern (3) to the substrate (2) using the porous Al2O3 layer (1) whilst the ceramic is calcined. Also claimed is the ceramic-conductor substrate.