Patent ID: 6876067

Claim:
A semiconductor device comprising: a semiconductor chip with a semiconductor integrated circuit formed thereon; a sealing member which seals the semiconductor chip with resin; a tub having a chip bonding surface bonded with the semiconductor chip and a back surface located on a side opposite to the chip bonding surface and exposed from the sealing member; a plurality of inner leads electrically connected respectively to surface electrodes of the semiconductor chip; and a plurality of outer leads integrally connected respectively to the inner leads and projecting to an exterior of the sealing member; wherein all surfaces of the tub and the plural inner leads and the plural outer leads, other than cut faces of the plural outer leads, are coated with palladium plating, and at least one of the surface electrodes of the semiconductor chip is connected with a corresponding one of said plural inner leads, through the palladium plating of said corresponding inner lead, using a metal thin wire.