发明名称 |
CERAMIC SUBSTRATE WITH CONDUCTIVELY-FILLED VIAS AND METHOD FOR PRODUCING |
摘要 |
A ceramic substrate (10) having vias (16) filled with a conductive material (18) which forms a hermetic seal for the vias. The conductive material (18) in the vias is the sintered product of a powder mixture comprising a metal, preferably tungsten, and a ceramic powder, preferably alumina. The conductive material (18) in the via has a resistance less than about 0.5 ohms. The conductive material (18) forms a seal sufficient to provide a leakage rate of less than 1.0 x 10<-8> STD cc per second of helium at a one atmosphere differential. |
申请公布号 |
WO8805959(A1) |
申请公布日期 |
1988.08.11 |
申请号 |
WO1988US00334 |
申请日期 |
1988.01.29 |
申请人 |
COORS PORCELAIN COMPANY |
发明人 |
COCHRAN, LAWRENCE;MCREYNOLDS, ROBERT, E.;BARKER, JOHN |
分类号 |
H05K1/03;H05K1/09;H05K1/16;H05K3/40;(IPC1-7):H01K3/10;H05K1/00;C04B41/81 |
主分类号 |
H05K1/03 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|