Leiterrahmen mit reduzierter Kapazitanz für Leiter-auf-Chip-Packung

摘要

In a lead on chip, LOC, integrated circuit packaging arrangement (10), the conductors (46) terminate in fingers (50) that receive the bond wires (20). Adjacent the fingers (50), the conductors (46) have arm parts (52) extending over the major face of the integrated circuit (12). These arm parts (52) are formed by stamping, rolling or otherwise to present an upwardly opening channel with at least the bottom lateral margins (54, 56) of the arm part (52) raised above the plane of the bottom surface (58) of the arm part (52). This reduces sagging of the arm part (52) and capacitive interaction with the integrated circuit.