20250185158. Copper-ceramic Bonded (DOWA METALTECH ., .)
COPPER-CERAMIC BONDED SUBSTRATE AND METHOD FOR MANUFACTURING THE SAME
Abstract: there is provided a copper-ceramic bonded substrate, including: a ceramic substrate; and a copper sheet bonded to at least one surface of the ceramic substrate, wherein the copper sheet has a vickers hardness of 42.5 hv or less, and the copper sheet has a magnesium content of 1 ppm or less, a nickel content of 2.5 ppm or less, a tin content of 0.05 ppm or less, a selenium content of 0.3 ppm or less, a tellurium content of 0.07 ppm or less, and a bismuth content of 0.2 ppm or less.
Inventor(s): Seiya YUKI, Yuki TERAMOTO
CPC Classification: H05K1/0271 (PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS)
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