Patent ID: 7990025
Filing Date: 2011-08-02
Classification: H01L,H03H

Abstract:
1. A hermetically packaged electronic device comprising a) an enclosure made of a plurality of elements, a base element made of a first material selected from a group consisting of silicon, titanium, zirconia, silicon carbide, sapphire, and tantalum, and a cover element made of the same said first material, said cover element having contoured edges creating recessed areas extending inwardly from a straight portion of said edges, at least one of said cover and said base element having a hollowed out region for receiving an electrical device; b) means bonding said plurality of elements together to form a hermetically sealed enclosure; c) an Application Specific Integrated Circuit (ASIC) etched into one of said plurality of elements forming said enclosure, said ASIC being etched on a surface internal to said enclosure; d) a piezoelectric device secured within said enclosure; e) a metallic layer bonded to a surface of one of said elements forming said enclosure, said contoured edges of said cover element exposing end portions of said metallic layer to permit easy connection to electronic circuitry outside said enclosure.