EP 0336944 B1 19930512 - COPPER-TUNGSTEN METAL MIXTURE AND PROCESS
Title (en)
COPPER-TUNGSTEN METAL MIXTURE AND PROCESS
Publication
Application
Priority
- US 10174987 A 19870928
- US 21286188 A 19880629
Abstract (en)
[origin: WO8902803A1] A copper-tungsten mixture net-shaped product produced using powder metallurgical techniques with injection molding and liquid phase sintering. The product has a very low leak rate in helium gas, a high thermal conductivity and a rate of thermal expansion which is substantially the same as some glass and ceramic materials.
IPC 1-7
IPC 8 full level
B22F 3/10 (2006.01); B22F 1/00 (2006.01); B22F 3/00 (2006.01); B22F 3/20 (2006.01); B22F 5/00 (2006.01); B22F 5/10 (2006.01); C22C 1/04 (2006.01); C22C 27/04 (2006.01); H01L 23/06 (2006.01)
CPC (source: EP KR)
B22F 1/00 (2013.01 - KR); C22C 1/045 (2013.01 - EP)
Designated contracting state (EPC)
BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8902803 A1 19890406; AU 2531888 A 19890418; AU 615964 B2 19911017; CA 1302739 C 19920609; DE 3881030 D1 19930617; DE 3881030 T2 19931202; EP 0336944 A1 19891018; EP 0336944 A4 19900108; EP 0336944 B1 19930512; FI 86604 B 19920615; FI 86604 C 19920925; FI 892568 A0 19890526; FI 892568 A 19890526; IL 87859 A0 19890331; IL 87859 A 19910610; JP 2811454 B2 19981015; JP H02501316 A 19900510; KR 900700216 A 19900811; KR 960013889 B1 19961010
DOCDB simple family (application)
US 8803253 W 19880921; AU 2531888 A 19880921; CA 578597 A 19880927; DE 3881030 T 19880921; EP 88908854 A 19880921; FI 892568 A 19890526; IL 8785988 A 19880927; JP 50810388 A 19880921; KR 890700936 A 19890527