Zirconia-added alumina substrate with direct bonding of copper
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United States of America Patent
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Oct 7, 1997
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app pub date -
Jan 19, 1996
filing date -
Jan 19, 1995
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Abstract
A ceramic substrate is a high-temperature fired body consisting of alumina as the main component, zirconia, and a ceramics sintering assisting agent. The assisting agent is one of yttria, calcia, magnesia, and ceria, in which yttria is added at 0.1-2 wt %, calcia is added at 0.02-0.5 wt %, magnesia is added at 0.02-0.4 wt %, and ceria is added at 0.02-0.5 wt %.
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