Patent ID: 7449770

Claim:
A substrate with a slot, comprising: an active surface; a plurality of metal plates on the active surface, the metal plates respectively having a first surface and a second surface, the first surface being connected to the active surface, wherein at least one of the metal plates at least one slot on the second surface and the metal plates are grouped into a plurality of wire metal plates and at least one dummy lead; at least one chip on the active surface and electrically connected to the wire metal plates, wherein the chip has a plurality of sides and a plurality of corners, the wire metal plates are on a corresponding position of the sides of the chip, and the dummy lead is on a corresponding position of at least one corner of the chip, and the dummy lead is not electrically connected to the chip; and a resin surroundingly coated on the sides and the corners of the chip, and hermetically connecting the chip and the metal plates, wherein the dummy lead has at least one slot for retaining the resin therein.