Patent ID: 8436480
Filing Date: 2013-05-07
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a semiconductor chip having a plurality of pads, the semiconductor chip having a main surface including at least a first side and a second side opposed to the first side, the plurality of pads including first, second and third pads that are positioned along the first side of the main surface; a base member on which the semiconductor chip is mounted; and a plurality of leads formed on the base member, each of the leads positioned across corresponding ones of the pads, and having a first end positioned above the main surface of the semiconductor chip and having a second end, the plurality of leads including first, second and third leads, wherein leads other than the first, second and third leads are placed between the first and second leads, and between the second and third leads, a portion of each of the first ends of the first, second and third leads is different from portions of the first ends of the other leads placed between the first and second leads, and between the second and third leads, and wherein the first, second and third leads are respectively electrically connected to the first, second and third pads, at least a distance from an edge of the first pad to the first end of the first lead is different from a distance of an edge of each of other pads of the plurality of pads electrically connected to corresponding ones of the other leads positioned between the first and second leads to the first end of the other leads positioned between the first and second leads.