There is provided a semiconductor device and a lead frame in which the cross section of bent portions (5a, 5b) of a gull wing type external lead (3) having a plurality of bent portions (5a, 5b) is arranged so that the width of bended inside is formed wider than that of the outside. By forming the external...http://www.google.com/patents/US5654585?utm_source=gb-gplus-sharePatent US5654585 - Semiconductor device with at least one lead having a plurality of bent portions
