Patent ID: 8263436

Claim:
A method of providing at least one electrical circuit apparatus comprising a moisture ingress barrier, wherein the method comprises: providing a first portion, wherein the first portion comprises a substantially planar connection surface, wherein providing the first portion comprises: providing a wafer substrate, and providing one or more layers formed on the substrate terminating at the connection surface, wherein the one or more layers comprise: at least one circuit device comprising electrical circuitry, wherein a perimeter region is defined laterally surrounding the at least one circuit device, and at least one metallic structure laterally surrounding the at least one circuit device and forming at least part of the moisture ingress barrier of the at least one electrical circuit apparatus, wherein the at least one metallic structure extends from the substrate to the connection surface and is located within the perimeter region; and providing a second portion, wherein the second portion comprises a substantially planar connection surface, wherein providing the second portion comprises providing a wafer substrate; and coupling the connection surface of the first portion to the connection surface of the second portion to form at least one hermetic interface proximate the at least one metallic structure of the first portion, wherein the at least one hermetic interface forms at least part of the moisture ingress barrier of the at least one electrical circuit apparatus.