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COMPOSITE SUBSTRATE INCLUDING FIRST SUBSTRATE HAVING FIRST SURFACE, SECOND SUBSTRATE HAVING SECOND SURFACE FACING FIRST SURFACE, AND FIRST AND SECOND BUMPS PROVIDED AT FIRST SURFACE
COMPOSITE SUBSTRATE INCLUDING FIRST SUBSTRATE HAVING FIRST SURFACE, SECOND SUBSTRATE HAVING SECOND SURFACE FACING FIRST SURFACE, AND FIRST AND SECOND BUMPS PROVIDED AT FIRST SURFACE
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机译:复合基质,包括具有第一表面的第一基质,具有第二表面的第二基质以及具有第一表面的第二和第二凸起
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摘要
A composite substrate includes: a first substrate; a second substrate; an electric contact; a first bump; and a second bump. The first substrate has a first surface. The first substrate has a thickness defining a thickness direction. The second substrate has a second surface. The second surface faces the first surface with a predetermined gap therebetween in the thickness direction. The electric contact is positioned at the second surface. The first bump includes: a core; and a conducting film. The core is provided at the first surface and has a convex shape protruding in the thickness direction. The conducting film covers a part of the core and is in contact with the electric contact. The second bump is provided at the first surface and has a convex shape protruding in the thickness direction. The second bump has a dimension in the thickness direction smaller than that of the first bump.
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