Patent ID: 7550322
Filing Date: 2009-06-23
Classification: H01L

Abstract:
1. A semiconductor device manufacturing method comprising the steps of: providing a conductive board having opposed front and back sides; conducting half etching of the front side of the conductive board to form a plurality of sets of a die pad portion and bonding areas on the conductive board, the sets being arranged in rows on the conductive board, and the half etching being conducted between the die pad portion and the bonding areas of each set but not between adjoined bonding areas of adjacent die pad portions along the rows; mounting a semiconductor chip on the die pad portion of each set using a conductive paste; connecting electrodes on the respective semiconductor chips and the bonding areas of the respective sets to each other electrically with metal wires; sealing a mounting portion of each semiconductor chip, the bonding areas connected thereto and the front side of the conductive board with a continuous molding resin to form a resin-sealed body; removing the conductive board selectively from the back side to leave the die pad portion and the bonding areas of each set so that the die pad portion and the bonding areas protrude from a bottom surface of the resin-sealed body; and separating the resin-sealed body into individual semiconductor devices by cutting through the molding resin and the adjoined bonding areas.