SINTERED CERAMIC AND SUBSTRATE COMPRISING SAME FOR SEMICONDUCTOR DEVICE

WIPO Patent Application WO/2010/114126

A1

A sintered ceramic which has a high mechanical strength and excellent heat dissipation properties and which, when bonded to a copper sheet, is less apt to generate voids at the interface therebetween. The sintered ceramic (1) is for use as an insulating substrate on which an electronic component is to be mounted. The sintered ceramic is characterized by being produced from a powder material comprising alumina as the main component, partially stabilized zirconia, and magnesia, the upper limit of the content of the partially stabilized zirconia being 30 wt.% relative to the total weight of the powder material, and the content of the magnesia being in the range of 0.05-0.50 wt.% relative to the total weight of the powder material. The sintered ceramic is further characterized in that 80-100% of the zirconia crystals contained in the sintered ceramic have a tetragonal phase.

NAGAHIRO MASANORI (JP)
OOGAMI JYUNJI (JP)
KOMATSU HIROYUKI (JP)

PCT/JP2010/056084

October 07, 2010

April 02, 2010

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SUMITOMO METAL SMI ELECTRONICS (JP)
NAGAHIRO MASANORI (JP)
OOGAMI JYUNJI (JP)
KOMATSU HIROYUKI (JP)

C04B35/111; C04B35/44; H01L23/13; H01L23/14

JPH08195450A	1996-07-30
JPH0421564A	1992-01-24
JP2007269524A	2007-10-18
JPH0738014A	1995-02-07
JPH08195450A	1996-07-30
JPH08195458A	1996-07-30
JPH06263533A	1994-09-20

"Dictionary of Physics and Chemistry", vol. 5, IWANAMI SHOTEN, PUBLISHERS
"Ceramic Dictionary"

INOUE, HIROSHI (JP)
Hiroshi Inoue (JP)

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