Patent ID: 11251110

Abstract:
In a semiconductor device (4), a semiconductor chip (10) is mounted on a die pad (6) which has a die pad overhang portion (6a) and leads (9) are arranged around and apart from the die pad (6). The leads (9) and the semiconductor chip (10) are electrically connected and are covered with a sealing resin (8). A concave portion (7e) is formed on the outer side of each lead (9), i.e., the far side from the die pad. A lead concave surface (7d) facing the concave portion (7e) includes a forward-tapered lead slope surface (7h). Side surface of the sealing resin (8) has a step of a staircase shape formed from the first and the second resin side surfaces (8a and 8b). A tip of the lead (9) protrudes past the first resin side surface (8a).