Patent ID: 7306510

Claim:
A method of adhering polishing pads in a polishing apparatus including: a lower polishing plate having a polishing face, on which said polishing pad is adhered; an upper polishing plate being provided above said lower polishing plate, said upper polishing plate having a polishing face, on which said polishing pad is adhered; a holding unit holding and moving said upper polishing plate in the vertical direction; a carrier having a through-hole, in which a wafer can be held, said carrier being provided between said lower polishing plate and said upper polishing plate with a holder; a rotary driving unit rotating said lower polishing plate and said upper polishing plate about their axial lines; and an orbit driving unit being connected to said holder, said orbit driving unit orbiting said carrier and said holder without rotating about their axial lines, wherein an upper face and a lower face of the wafer, which is sandwiched between said lower polishing plate and said upper polishing plate, are simultaneously polished by rotating said lower polishing plate and said upper polishing plate and orbiting said carrier, said method for simultaneously adhering said polishing pads to said lower polishing plate and said upper polishing plate comprising the steps of: detaching said carrier form said holder; tentatively adhering said polishing pads to the polishing faces of said lower polishing plate and said upper polishing plate; setting a pad adhering carrier, whose size is almost equal to that of said carrier and which has a through-hole in which a roller unit for pressing said polishing pads is fixed, in said holder with arranging said roller unit in a radial direction of said lower polishing plate and said upper polishing plate; moving said upper polishing plate toward said lower polishing plate so as to clamp said roller unit between said lower polishing plate and said upper polishing plate with a prescribed force; rotating said lower polishing plate and said upper polishing plate, which clamp said roller unit, in the opposite directions at the same speed; and pressing said polishing pads onto the polishing faces of said lower polishing plate and said upper polishing plate by said roller unit.