PROCESS FOR PRODUCING CERAMIC SUBSTRATE, AND CERAMIC SUBSTRATE

Title:

PROCESS FOR PRODUCING CERAMIC SUBSTRATE, AND CERAMIC SUBSTRATE

Document Type and Number:

WIPO Patent Application WO/2006/114974

Kind Code:

A1

Abstract:

A process for producing a ceramic multilayer substrate, in which a ceramic substrate having a desirably patterned split-level area can be efficiently produced without the need of complex production steps and production facilities; and a ceramic substrate of high configuration accuracy produced by the production process. On a major surface of unfired ceramic matter (10), while causing auxiliary layer (20) of a material substantially not sintered at the temperature during the firing of the unfired ceramic matter (10) to closely adhere thereto, there is provided auxiliary-layer-furnished unfired ceramic matter (11) having split-level area (15) on its major surface. This auxiliary-layer-furnished unfired ceramic matter in the state of being furnished with the auxiliary layer is fired at a temperature at which the unfired ceramic matter is sintered but the auxiliary layer is substantially not sintered. Die (30) having convex area (22) is caused to match the auxiliary layer lying side of the auxiliary-layer-furnished unfired ceramic matter, and pressed. Thus, split-level area (concave area) (15(15a)) having a configuration corresponding to that of the contour of the convex area (22) is generated in the auxiliary layer lying side of the auxiliary-layer-furnished unfired ceramic matter.

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Inventors:

ITO YUKI (JP)
CHIKAGAWA OSAMU (JP)
IKEDA TETSUYA (JP)

Application Number:

PCT/JP2006/306553

Publication Date:

November 02, 2006

Filing Date:

March 29, 2006

Export Citation:

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Assignee:

MURATA MANUFACTURING CO (JP)
ITO YUKI (JP)
CHIKAGAWA OSAMU (JP)
IKEDA TETSUYA (JP)

International Classes:

C04B35/64; B28B11/10; H05K3/46

Foreign References:

JP2001230548A	2001-08-24
JP2003008217A	2003-01-10
EP0581294A2	1994-02-02
US20020134488A1	2002-09-26

Other References: