Joined body including ceramic member and metallic member and method for manufacturing joined body
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United States of America Patent
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Oct 27, 2020
Grant Date -
Feb 9, 2017
app pub date -
Oct 24, 2016
filing date -
Apr 30, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A joined body 10 is manufactured by joining a Mo- or Ti-made terminal 14 having a Ni coating, a Au coating, a Ni—Au coating (with Ni Serving as a base) to a recess 12a formed in a plate-shaped ceramic member 12 made of alumina or aluminum nitride through a joint layer 16. The joint layer 16 contains Au, Sn, Ag, Cu, and Ti and is in contact with a bottom surface of the recess 12a and with at least part of a side surface of the recess 12a (the entire side surface in this case). In the joint layer 16, its joint interface with the ceramic member 12 is Ti-rich. When the joined body 10 is cut in its thickness direction, the ratio of the total cross sectional area of pores to the cross-sectional area of the joint layer 16 (porosity) is 0.1 to 15%.
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