公开(公告)号：US20020019304A1

公开(公告)日：2002-02-14

申请号：US09930010

申请日：2001-08-15

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kazuo Kishida ,  Akira Shiratori ,  Osamu Yokokura ,  Hiroshi Takagi

IPC: B32B015/04 ,  C03C014/00

CPC classification number: C04B35/111 ,  C03C8/14 ,  C03C14/004 ,  H01L23/15 ,  H01L2924/0002 ,  H01L2924/09701 ,  H05K1/0306 ,  Y10S428/901 ,  Y10T428/24917 ,  Y10T428/24926 ,  H01L2924/00

Abstract: There is disclosed a composition for a ceramic substrate comprising a mixture of: powdered borosilicate-based glass comprising about 5% to 17.5% by weight of B2O3, about 28% to 44% by weight of SiO2, 0% to about 20% by weight of Al2O3, and about 36% to 50% by weight of MO (where MO is at least one selected from the group consisting of CaO, MgO, and BaO), and a powdered ceramic; in which the amount of the powdered borosilicate-based glass is about 40% to 49% by weight based on the total amount of the composition for a ceramic substrate, and the amount of the powdered ceramic is about 60% to 51% by weight based on the total amount of the composition for a ceramic substrate.