Patent ID: 7670209

Claim:
A pad conditioner for dressing a surface of a polishing pad which is used in a polishing apparatus for polishing works, comprising: a supporting section of one of a solid cylindrical, hollow cylindrical and hog-backed shape having a central axis which is disposed parallel to the polishing pad; a rotating device which rotates the supporting section around said central axis; a controlling device which controls the rotating device to rotate the supporting section around said central axis by a predetermined angle at a predetermined time intervals; a plurality of linear elastic members which have abrasive tip ends and which are implanted into a circumferential surface of the supporting section, wherein upon contact of the tip ends of the linear elastic members with the polishing pad, the linear elastic members elastically deform in a manner enabling the tip ends to follow different heights of the surface of the polishing pad caused by surface waviness in order to uniformly perform conditioning over the surface of the polishing pad.