Patent ID: 8021906

Claim:
A process for hermetically sealed closing of a microelectromechanical structure ( 2 ) comprising the steps of: providing a system wafer ( 1 ) on which the microelectromechanical structure ( 2 ) with a structured metallization layer ( 3 ) with a pad is provided; providing a cover wafer ( 5 ; 5 a ) having a conductive material, wherein an insulating layer ( 10 ) is formed at least on an upper side and a lower side of the cover wafer ( 5 ; 5 a ); producing a through hole ( 6 ) through the cover wafer ( 5 ; 5 a ); producing a metallic strip conductor structure ( 7 ) on the upper side of the cover wafer ( 5 ; 5 a ), wherein a through hole area of the metallic strip conductor structure ( 7 ) is aligned with the pad of the structured metallization layer ( 3 ), if the cover wafer ( 5 ; 5 a ) is connected to a side of the system wafer ( 1 ); wherein at least a part of the insulating layer ( 10 ) is formed after producing the through hole ( 6 ) such that the insulating layer ( 10 ) also lines at least one side wall of the through hole ( 10 ); and producing a hermetically sealed closure for the microelectromechanical structure ( 2 ) and an electrical contact between the metallic strip conductor structure ( 7 ) and the structured metallization layer ( 3 ) by sealing the through hole ( 6 ) with an electrically conductive glass solder paste.