Patent ID: 7315072
Filing Date: 2008-01-01
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor substrate; a first interlayer insulating film made of insulating material and formed on the semiconductor substrate; a first intra-layer insulating film made of insulating material and formed on the first interlayer insulating film, the first intra-layer insulating film being formed with a recess reaching a bottom of the first intra-layer insulating film, the recess having a pad part and a wiring part continuous with the pad part, the pad part having a width wider than a width of the wiring part, a plurality of insulating regions disposed on the bottom of the pad part, and the recess being formed so that the insulating regions are not disposed in a near wiring area superposed upon an extended area of the wiring part into the pad part, within a first frame area having as an outer periphery an outer periphery of the pad part and having a first width but disposed in a second frame area having as an outer periphery an inner periphery of the first frame area and having a second width; a first pad filled in the pad part of the recess; and a wiring filled in the wiring part of the recess, wherein upper surfaces of said first pad, said wiring and said insulating regions are on a same level, wherein said first pad contained in said pad part of said recess has a continuous body, wherein the insulating regions are disposed regularly in the second frame area along a first direction at a first period P, and a width of the first frame area along the first direction is equal to or wider than said first period P, wherein said first period P is a distance from one insulating region to another insulating region of said plurality of insulating regions including a width of said one insulating region.