Patent ID: 6623336
Filing Date: 2003-09-23
Classification: B24B,G11B

Abstract:
A polishing device for polishing an object to be polished which is elongated in one direction, in which a plane of the object to be polished extending in a longitudinal direction is divided into a plurality of regions, and a plurality of elements each consisting of at least one of an electromagnetic conversion element and a magnetroelectric conversion element are formed in the longitudinal direction in each of the divided regions, said polishing device comprising:a polishing bed having a polishing surface which is rotationally driven; a polishing head mounted frame movably disposed on the polishing surface; and a polishing head supported by said polishing head mounted frame; wherein said polishing head includes a jig that has a holding portion that extends in the longitudinal direction and holds the object to be polished at a given position of the holding portion, a support portion that supports the jig, an elevating portion that is integrated with the support portion and elevates with respect to the polishing surface, and a plurality of holding portion deforming means each of which gives a load which deforms the holding portion and the object to be polished to the holding portion; and wherein each of the holding portion deforming means is disposed so as not to give the load on boundaries between the plurality of regions.