Patent ID: 7087993

Claim:
A lead-frame package, comprising: a lead frame, comprising: a die pad; a plurality of generic leads; a plurality of AC ground leads; and at least a characterized signal lead structure having a cross-sectional area perpendicular to the direction of signal transmission greater than that of each generic lead, wherein both sides of the characterized signal lead structure are the AC ground leads; a chip attached to the die pad; a plurality of generic wires connecting the chip to the generic leads respectively; a plurality of AC ground wires connecting at least a AC ground bonding pad on the chip to the AC ground leads respectively for transmitting at least a AC ground signal; at least a characterized signal wire connecting a signal bonding pad on the chip to the characterized signal lead structure for transmitting a single signal; and an insulation material encapsulating the lead frame, the chip, the generic wires, the AC ground wires and the characterized signal wire; wherein the signal bonding pad on the chip is surrounded by the AC ground bonding pad.