Patent ID: 8432008

Claim:
A hermetic ceramic vacuum package for encapsulating a microelectromechanical system provided with an electrically conductive equipotential element configured to be soldered to said package, said package comprising a metalized base, the metalized base designed to be soldered to said microelectromechanical system, and output electrical contacts, the output electrical contacts electrically connected to electrical-contact elements of said microelectromechanical system, wherein said metalized base comprises a plurality of metalized surface portions, each metalized surface portion connected to at least a respective metalized track, each metalized surface portion and corresponding metalized track defined by a respective unmetalized solder stop region that generally bounds but does not fully surround the metalized surface portion and corresponding metalized track allowing for a gap in the unmetalized solder stop region such that the metalized track is provided in the gap, and the metalized base completely surrounds each respective metalized surface portion and corresponding metalized track located interior to the metalized base, each metalized surface portion connected to the rest of the metalized base by the corresponding metalized track positioned in the gap, each metalized track having a width that is smaller than a width of the corresponding metalized surface portion, said metalized surface portions being designed to be soldered to said microelectromechanical system.