1. 平台首页
  2. 国际专利信息
  • 专利标题:   Copper/graphene junction for e.g. engine compartment, comprises structure in which copper component and graphene-containing carbonaceous component are joined, active metal carbide layer, and magnesium solid solution layer in which magnesium is solid-solved in matrix phase of copper.
  • 专利号:   WO2021149802-A1, JP2021118357-A, JP6947318-B2, CN115004361-A, EP4095896-A1, US2023127611-A1
  • 发明人:   NOBUYUKI T, TERASAKI N
  • 专利权人:   MITSUBISHI MATERIALS CORP, MITSUBISHI MATERIALS CORP, MITSUBISHI MATERIALS CORP, MITSUBISHI MATERIALS CORP
  • 国际专利分类:   H01L023/36, H01L023/373, C04B037/02, C01B032/194, C01B032/914, C01B032/921, B23K020/00, C01B032/21, C04B035/645
  • 专利详细信息:   WO2021149802-A1 29 Jul 2021 202166 Pages: 31 Japanese
  • 申请详细信息:   WO2021149802-A1 WOJP002260 22 Jan 2021
  • 优先权号:   JP009691, JP007345, CN80010284

▎ 摘　　要

NOVELTY - A copper/graphene junction (20) comprises a structure in which a copper component (21) made of copper or a copper alloy and a graphene-containing carbonaceous component (25) containing a graphene aggregate are joined, an active metal carbide layer (41) containing carbides of active metals chosen from titanium, zirconium, niobium, and hafnium between the copper component and the graphene-containing carbonaceous component on the graphene-containing carbonaceous component side, and a magnesium solid solution layer (42) in which magnesium is solid-solved in the matrix phase of copper is formed between the active metal carbide layer and the copper component. USE - Copper/graphene junction used for copper/graphene junction structure (all claimed) for engine compartment, insulation circuit board, and thermoelectric module. ADVANTAGE - The copper/graphene junction has excellent cycle reliability, and suppressed peeling load even under a cold cycle load. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) manufacture of the junction, which involves forming an active metal carbide layer and magnesium solid solution layer, laminating the copper component and the graphene-containing carbonaceous component through active metal carbide layer and magnesium solid solution layer, and the copper component and the graphene-containing carbonaceous component through active metal carbide layer and magnesium solid solution layer by heat treatment in a vacuum atmosphere while being pressurized in the stacking direction, where the content of active metal is 0.4-47.0 mu mol/cm2, and the content of magnesium is 14-180 mu mol/cm2; and (2) a copper/graphene bonded structure. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a bonding interface between a copper component of a copper/graphene junction and a graphene-containing carbonaceous structure. Copper or graphene junction (20) Copper component (21) Graphene-containing carbonaceous structure (25) Bonded interface (40) Active-metal carbide layer (41) Magnesium solid solution layer (42)