Electrical Feedthrough Assembly
AssigneeAdvanced Bionics AG
InventorsKurt J. Koester, Chuladatta Thenuwara, Timothy Beerling, Mark B. Downing, David Stuursma, Logan P. Palmer
Life of this patent
Estimating the term…
Abstract
A device includes a hermetically sealed case with electronic circuitry housed within. One surface of the hermetically sealed case includes a metallic plate and a co-fired ceramic electrical feedthrough with a number of vias. The co-fired ceramic electrical feedthrough is hermetically joined to the metallic plate and a hybrid circuit is connected to the feedthrough.
Claims21
1-23. (canceled)
A device comprising:
- a hermetically sealed case with electronic circuitry housed within;
- wherein one surface of the hermetically sealed case comprises:
- a metallic plate,
- a co-fired ceramic electrical feedthrough being hermetically joined to the metallic plate, the feedthrough comprising:
- a number of vias;
- and
- a number of pads located on a first side of the feedthrough, each pad being electrically connected to at most one via, wherein a via connected to a pad extends laterally beyond a footprint of the pad;
- and
- a circuit electrically coupled to vias of the feedthrough.
A device, a feedthrough for a hermetically sealed case, the feedthrough comprising:
- a co-fired ceramic matrix;
- two vias of a first cross-section;
- and
- multiple vias of a second cross-section, wherein a first line passes through a center of each of the two vias of a first cross-section and a second line through a center of each of the multiple vias of a second cross-section, wherein the first and second lines are parallel to each other.
A method of forming a ceramic feedthrough for a hermetically sealed case, the method comprising:
- forming multiple stacked layers comprising green sheet material and metal, wherein the metal forms multiple vias through the stacked layers and a first via and a second via have different geometries;
- and
- co-firing the multiple stacked layers.
Dependencies are inferred from the claim text.