Patent ID: 8049337

Claim:
A substrate, having a surface having a die-attaching area for attaching a die and an elongated cutting area spaced from the die-attaching area and extending along a cutting path and having an elongated exposing area therein extending along the cutting path, the cutting area having an inner side facing toward the die-attaching area, the substrate comprising: a plurality of pads disposed on the die-attaching area of the surface; a solder mask disposed on the surface, exposing the exposing area and the pads, the solder mask having: an inner area at the inner side of the cutting area; and an outer area separated from the inner area by the cutting area; and a first pre-die-attaching function line and a second pre-die-attaching function line crossing the cutting area from the inner area to the outer area, the mask further including a first connecting area and a second connecting area to cover the first pre-die-attaching function line and the second pre-die-attaching function line respectively so as to separate the exposing area into three exposing portions.