Kyocera Corporation

Kouji Yamamoto

Tatsuji Furuse

Shinya Kawai

Sentarou Yamamoto

Seiichiro Hirahara

Mieko Yashima

Mitsugi Ogawauchi

Satoru Kajihara

There is provided a dimensionally accurate insulating substrate in which plane direction-wise shrinkage is practically zero and shrinkage variations are small. The insulating substrate includes a laminated body composed of at least two kinds of insulating layers made of crystallizable glass ceramics. The crystallization temperature of crystallizable glass contained in the first insulating layer is lower than the softening point of crystallizable glass contained in the second insulating layer. The difference in thermal expansion coefficient between the first and second insulating layers is preferably 2&#xd7;10/&#xb0; C. or below.

Insulating substrate and manufacturing method therefor, and multilayer wiring board and manufacturing method therefor

A laminate includes a first green sheet and a second green sheet. The first green sheet includes a first glass including Al and M which is at least one of Sr and Ba. A relationship between Al content and M content is so defined that a position represented by percent by mass of Al in terms of AlOand percent by mass of M in terms of MO on a coordinate system are on or in a range defined by straight lines connecting point A (1, 21), point B (1, 35), point C (9, 45), point D (20, 45), point E (20, 35), and point F (9, 21) on the coordinate system. The second green sheet includes a second glass including Si and B. The first green sheet is integrally laminated with the second green sheet.

Laminate, ceramic substrate and method for making the ceramic substrate

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Kirishima, Japan

Kouji Yamamoto