Patent ID: 6980439

Claim:
An integrated circuit package comprising: a printed circuit board having a ground ring connected to a ground plane of the printed circuit board; a non-metal connector attached to the printed circuit board within the ground ring; a metal casing substantially enclosing the printed circuit board but not enclosing the non-metal connector, the metal casing having a metal lip that makes physical and electrical contact with the ground ring of the printed circuit board, the metal casing comprising a first metal portion that substantially covers a top surface of the printed circuit board, and a second metal portion that substantially covers a bottom surface of the printed circuit board, wherein a perimeter edge of the first metal portion at least partially overlaps a perimeter edge of the second metal portion; and a first perimeter ground ring disposed on the printed circuit board that at least partially and concentrically encloses the ground ring, the first perimeter ground ring making electrical contact with at least one of the first metal portion or the second metal portion.