Patent ID: 8148200
Filing Date: 2012-04-03
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising the steps of: (a) providing a lead frame including a chip mounting portion, first and second suspension leads each supporting the chip mounting portion, a plurality of leads arranged between the first suspension lead and the second suspension lead in a plan view, (b) after the step (a), mounting a semiconductor chip over the chip mounting portion, the semiconductor chip including a front surface having a first side, and a plurality of electrode pads formed on the front surface and arranged along the first side in the plan view, (c) after the step (b), electrically connecting the first, second, third, fourth and fifth electrode pads with the first, second, third, fourth and fifth leads via first, second, third, fourth and fifth wires, respectively, such that a wide angle formed between the first side of the semiconductor chip and the second wire in the plan view is larger than a wide angle formed between the first side of the semiconductor chip and the first wire in the plan view, such that a wide angle formed between the first side of the semiconductor chip and the third wire in the plan view is larger than the wide angle formed between the first side of the semiconductor chip and the second wire in the plan view, such that a wide angle formed between the first side of the semiconductor chip and the fourth wire in the plan view is larger than the wide angle formed between the first side of the semiconductor chip and the first wire in the plan view, and such that a wide angle formed between the first side of the semiconductor chip and the fifth wire in the plan view is larger than the wide angle formed between the first side of the semiconductor chip and the fourth wire in the plan view; (d) after the step (c), clamping the lead frame with a first die and a second die facing to the first die, and injecting a resin into a cavity formed by clamping the first and second dies so as to seal the semiconductor chip, the first wire, the second wire, the third wire, the fourth wire and the fifth wire with resin.