Title:
PROCESS FOR PRODUCTION OF MULTILAYER CERAMIC SUBSTRATE
Document Type and Number:
WIPO Patent Application WO/2010/122822
Kind Code:
A1
Abstract:
Disclosed is a process for the production of a multilayer ceramic substrate by a so-called non-shrinkage method. Even when the total area of the surface electrodes on a first main surface side is smaller than that on a second main surface side, according to the process, a good balance in the time taken from the softening temperature of glass until the crystallization temperature thereof can be achieved between the first and second main surface sides, whereby all the base material layers can be densified and prevented from cracking or warping, even when the crystallization temperature is lowered in order to prevent the occurrence of a reaction layer.
Among the multiple base material layers (12) constituting an unfired multilayer ceramic substrate (11), a first base material layer (12(A)) giving a first main surface (17) and a second base material layer (12(B)) giving a second main surface (18) which has a larger total area of surface electrodes (16) are configured in a manner so that the glass material contained in the second base material layer (12(B)) has a crystallization temperature lower than that of the glass material contained in the first base material layer (12(A)).
Inventors:
KISHIDA KAZUO (JP)
TAKADA TAKAHIRO (JP)
TAKADA TAKAHIRO (JP)
Application Number:
PCT/JP2010/050322
Publication Date:
October 28, 2010
Filing Date:
January 14, 2010
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
KISHIDA KAZUO (JP)
TAKADA TAKAHIRO (JP)
KISHIDA KAZUO (JP)
TAKADA TAKAHIRO (JP)
International Classes:
H05K3/46; C04B35/64
Foreign References:
| JP2005039164A | 2005-02-10 | |||
| JP2004281989A | 2004-10-07 | |||
| JP2001114556A | 2001-04-24 |
Attorney, Agent or Firm:
KOSHIBA, MASAAKI (JP)
Masaaki Koshiba (JP)
Masaaki Koshiba (JP)
Download PDF: