Method for the manufacture of a cermet-containing bushing

A method for the manufacture of an electrical bushing for use in a housing of an active implantable medical device,

• whereby the electrical bushing comprises at least one electrically insulating base body and at least one electrical conducting element;
• whereby the conducting element is set-up to establish, through the base body, at least one electrically conductive connection between an internal space of the housing and an external space;
• whereby the conducting element is hermetically sealed with respect to the base body;
• whereby the at least one conducting element comprises at least one cermet;
• characterized in that the method comprises:
• forming a base body green compact having a through-opening that extends through the base body green compact from a ceramic slurry or a ceramic powder;
• generating at least one conducting element green compact from a cermet slurry or a cermet powder;
• producing a bushing blank by combining the at least one conducting element green compact and the base body green compact;
• and
• separating the bushing blank into at least two electrical bushings;
• characterized in that the base body green compact and the conducting element green compact are sintered separately before the bushing blank is produced, the step of producing the bushing blank is effected by introducing the at least one conducting element green compact in the at least one through-opening of the base body green compact.