Patent ID: 6520895
Filing Date: 2003-02-18
Classification: B24B,B24D,Y10T

Abstract:
A polishing device comprising:an object retention mechanism adapted to retain an object to be polished such that a plane thereof to be polished faces upward; a polishing pad component having a polishing plane adapted to polish the plane to be polished while in contact with the plane to be polished; a polishing head configured to retain said polishing pad component on a lower end thereof such that the polishing plane thereof faces downward, and to impart rotational motion about an axis to said polishing head; a shift mechanism configured and adapted to cause a relative displacement of said polishing head in relation to said plane to be polished, a pad fixation and retention mechanism adapted to detachably fix and retain said polishing pad component on the lower end of said polishing head such that the polishing plane faces downward, said pad fixation and retention mechanism being provided at the lower end of said polishing head, wherein said shift mechanism is constructed and adapted to displace said polishing head from a polishing position of said plane to be polished to an exchange position of said polishing pad component in a direction different from said rotational axis; and a temporary binding mechanism configured and adapted to temporarily bind said polishing pad component to said polishing head when said pad fixation and retention mechanism is inoperative.