Patent ID: 7278907

Claim:
A method of adhering polishing pads in a polishing apparatus including: a lower polishing plate ( 20 ) having a polishing face, on which said polishing pad ( 10 ) is adhered; an upper polishing plate ( 30 ) being provided above said lower polishing plate ( 20 ) and held by a holding unit ( 60 ), said upper polishing plate ( 30 ) having a polishing face, on which said polishing pad ( 10 ) is adhered; a carrier ( 50 ) for holding a work piece ( 40 ), said carrier ( 50 ) being provided on said lower polishing plate ( 20 ) and engaged with a sun gear ( 80 ) and an internal gear ( 70 ), wherein an upper face and a lower face of the work piece ( 40 ) are simultaneously polished by rotating and moving said carrier ( 50 ) around the sun gear ( 80 ) and rotating said upper and lower polishing plates 20 , 30 ), said method comprising the steps of: tentatively adhering said polishing pads ( 10 ) to said upper and lower polishing plates ( 20 , 30 ); attaching a roller unit ( 200 ) having a shaft ( 220 ), which includes connector sections ( 210 ) to be attached to the sun gear ( 80 ) and the internal gear ( 70 ), and a roller member ( 230 ), which is capable of rotating about the shaft ( 220 ) and which has a projected section ( 232 ) having a prescribed width and being spirally formed in an outer circumferential face, to the sun gear ( 80 ) and the internal gear ( 70 ) by the connector sections ( 210 ) so as to attach the roller unit ( 200 ) on said lower polishing plate ( 20 ) in the radial direction; moving said upper polishing plate ( 30 ) downward, by the holding unit ( 60 ), until said upper polishing plate ( 30 ) contacts the roller member ( 230 ); and simultaneously adhering said polishing pads ( 10 ) onto said upper and lower polishing plate ( 20 , 30 ) by rotating said upper and lower polishing plates ( 20 , 30 ) in the opposite directions at the same speed with pressing the roller member ( 230 ) by said upper polishing plate ( 30 ).