Patent ID: 7692288

Claim:
A MEMS package comprising: at least one MEMS device; a flexible substrate having at least one metal layer on a top side of which said at least one MEMS device is mounted; a rigid conductive plate having a top side attached to a bottom side of said flexible substrate and underlying said at least one MEMS device wherein a portion of said flexible substrate is folded and attached to a bottom side of said rigid conductive plate; a passage hole in said flexible substrate underlying said at least one MEMS device; a plurality of via holes in said flexible substrate; a metal cap structure surrounding said at least one MEMS device wherein an edge surface of said metal cap structure is attached and electrically connected to said folded flexible substrate and to said rigid conductive plate through said via holes in said flexible substrate wherein said metal cap structure and said at least one metal layer in said flexible substrate together provide EMI shielding of said at least one MEMS device; at least one punched opening in said rigid conductive plate and underlying said passage hole in said flexible substrate wherein said at least one punched opening and said passage hole provide a back chamber for said at least one MEMS device; and an environmental hole in said metal cap structure.