Patent ID: 6660564
Filing Date: 2003-12-09
Classification: B81B,H01L

Abstract:
A method for packaging a MEMS device comprising:providing a first substrate having a functional element and metal leads thereon and a second SOI substrate having at least one recessed cavity in a first silicon portion thereof with metal connectors therein; bonding a surface of the first substrate to a non-recessed surface of the first silicon portion of the second SOI substrate and bonding the metal leads of the first substrate to respective metal connectors of the second SOI substrate to enclose and seal the functional element of the first substrate within the recessed cavity of the second SOI substrate; and forming metal pads on each of the metal connectors of the second SOI substrate through the second SOI substrate for feeding electrical signals to and from the functional element of the first substrate sealed in the cavity of the second SOI substrate through the metal leads, the connectors and the pads.