Patent ID: 6828661
Filing Date: 2004-12-07
Classification: H01L

Abstract:
A lead frame comprising:a die pad portion supported internally of a framework portion by suspension leads; and a plurality of leads each having one end connected to the framework portion and the other end opposed to the die pad portion, wherein the die pad portion has a holding region having a square plan configuration formed from a part of an upper surface of the die pad portion which has been elevated above the remaining part thereof, wherein the holding region has an opening formed to extend therethrough in a front-to-back direction of the die pad portion, wherein the opening formed in the holding region includes a plurality of openings and one of the openings is provided at a position opposing a position at which an injection gate for a sealing resin material is disposed, the opening formed in the holding region includes four openings, wherein the holding region has connecting sections provided between the adjacent openings and a center holding section having a square plan configuration defined by the respective inner edges of the surrounding openings which connect the adjacent connecting sections to each other, and wherein each of the edges of the center holding section is shifted from the framework portion by about 45Â°.