Patent ID: 7696083
Filing Date: 2010-04-13
Classification: G01R,H01L

Abstract:
1. A multi-layer device for connecting to an electrical unit enclosed within the multi-layer device, comprising: a first wafer having a surface bonded to a first insulator; a first outer terminal and a second outer terminal, wherein the first and the second outer terminals are isolated islands in the first wafer separated physically and electrically from the remainder of the first wafer by a set of trenches in the first wafer; said first insulator having a first surface bonded to the first wafer and a second surface bonded to a second wafer; a first inner thin-film terminal-coated on the second surface of the first insulator positioned on top surface of the second wafer; said second wafer having a first surface bonded to the second surface of the first insulator and a second surface bonded to a first surface of a second insulator; an interior sensor unit hermetically sealed within the second wafer and electrically isolated from remainder of the second wafer by a gap; said second insulator having a first surface bonded to a second surface of the second wafer and a second surface bonded to a third wafer; a second inner thin-film terminal coated on the first surface of the second insulator opposite to the first inner thin-film terminal on bottom surface of the second wafer, wherein both the first and the second inner terminals being electrically connected to the interior sensor unit, the first outer terminal ( said third wafer bonded to the second surface of the second insulator; and an insulating reinforcement included in the trenches and positioned adjacent to at least one of the first and second outer and inner terminals to provide for reinforcement of the at least one of the first and second outer and inner terminals to reduce mechanical loads to the terminals.