Zirconia-added alumina substrate with direct bonding of copper

• Main Authors: YOSIDA, SHIZUYASU, YAMADA, KATUMI, MATUURA, KAZUYA, TERAMURA, KAZUHIKO, NOZAKI, TOSHIO, SAITO, SHIGEMASA
• Format: Patent
• Language: English; French; German
• Published: 31.03.2004
• Edition: 7
• Subjects: ARTIFICIAL STONE; BASIC ELECTRIC ELEMENTS; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SEMICONDUCTOR DEVICES; SLAG; TREATMENT OF NATURAL STONE

A ceramic substrate (2a) is a fired body and has a material composition in which alumina is the main component and zirconia is added to it. Copper plates (2b,2c) are directly bonded to the front and back faces of the ceramic substrate (2a). In the material composition of the ceramic substrate (2a),...