Global Patent Index - EP 0379431 B1

EP 0379431 B1 19941005 - Glass-aluminium sealing process, in particular for a hybrid circuit box electrical feedthrough, corresponding composite article and glass composition.

Title (en)

Glass-aluminium sealing process, in particular for a hybrid circuit box electrical feedthrough, corresponding composite article and glass composition.

Title (de)

Glas-Aluminium-Abdichtungsverfahren, insbesondere für eine elektrische Durchführung eines Gehäuses für Hybridschaltungen, entsprechend zusammengesetzter Gegenstand und Glaszusammensetzung.

Title (fr)

Procédé de scellement verre-aluminium, notamment pour traversée électrique de boîtier de circuit hybride, objet composite et composition de verre correspondants.

Publication

EP 0379431 B1 19941005 (FR)

Application

EP 90400134 A 19900117

Priority

FR 8900709 A 19890120

Abstract (en)

[origin: EP0379431A1] An insulating electrical bushing (TRA) through a wall (PAR) made of aluminium is obtained from a sintered bush (FFR) comprising phosphate glass, into which a conductive pin (B) is inserted. The bush is raised to a firing temperature greater than the temperature for dilatometric softening of the vitreous material in the presence of a first effective quantity of alumina (OX1) between the bush and the wall and a second effective quantity of nickel oxide (OX2) between the bush and the pin, which makes it possible to obtain, simultaneously and directly, a hermetic seal between the bush and the wall and the pin and the bush.

IPC 1-7

H01B 17/30; H01L 21/50

IPC 8 full level

H01B 17/30 (2006.01); H01J 9/32 (2006.01)

CPC (source: EP US)

H01B 17/305 (2013.01 - EP US); H01J 9/32 (2013.01 - EP US)

Designated contracting state (EPC)

BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0379431 A1 19900725; EP 0379431 B1 19941005; CA 2008297 A1 19900720; CA 2008297 C 19950801; DE 69013017 D1 19941110; FR 2642257 A1 19900727; FR 2642257 B1 19960524; IL 93101 A0 19901105; IL 93101 A 19940731; US 5538527 A 19960723

DOCDB simple family (application)

EP 90400134 A 19900117; CA 2008297 A 19900122; DE 69013017 T 19900117; FR 8900709 A 19890120; IL 9310190 A 19900118; US 25796094 A 19940610