Technique capable of achieving reliability improvement of a semiconductor device even if temperature rising of an operation guarantee temperature of the semiconductor device is performed is provided. Gap portions are provided among a plurality of pads, and a glass coat composed of, for example, a silicon oxide film or a silicon nitride film is embedded in the gap portions. The glass coat is provided in order to secure electrical insulation among the pads, and coats outer edge portions of the pads. Trenches are formed so as to be adjacent to regions, which are coated with the glass coat, of the outer edge portions of the pads.