Patent ID: 6583499
Filing Date: 2003-06-24
Classification: H01L,H05K,Y02P

Abstract:
A quad flat non-leaded package comprising:a die pad having a first upper surface and a corresponding first lower surface, wherein a plurality of interlacing slots crossing each other are provided on the first lower surface, and wherein each of the interlacing slots uniformly extends from one edge of the first lower surface to another edge thereof to define a plurality of blocks; a plurality of leads disposed at the periphery of the die pad, each of the leads having respectively a second upper surface and a corresponding second lower surface; a chip having an active surface and a corresponding back surface, wherein the active surface is provided with a plurality of bonding pads respectively connected the leads, and the back surface of the chip is adhered onto the first upper surface of the die pad; and a molding compound encapsulating the chip, the second upper surface of the leads, the first upper surface of the die pad, and the interlacing slots while exposing the blocks on the first lower surface of the die pad and the second lower surface of the leads.