摘要:
A method for forming a polishing media and an article of manufacture is described. The article of manufacture may be formed into a polishing article. The polishing article includes a polymer base material and a plurality of nano-scale structures disposed in or on the polymer base material.
摘要:
A flexible membrane for use in a carrier head has a generally circular main portion with a lower surface, an annular outer portion for connection to a base assembly, and an annular flap extending from the main portion on a side opposite the lower surface for connection to the base assembly. At least one surface of the flap has a surface texture to prevent adhesion.
摘要:
One embodiment provides a retaining ring assembly. The retaining ring assembly comprises a retaining ring configured to circumferentially surround and retain the substrate within an inner surface of the retaining ring, and a flexure coupled to the retaining ring. The flexure is configured to maintain a gap between an inner surface of a carrier ring and an outer surface of the retaining ring, and the carrier ring is circumferentially surrounding the retaining ring.
摘要:
A two part retaining ring is described that has a lower ring and an upper ring. The lower ring contacts a polishing surface during chemical mechanical polishing. The upper surface and the lower surface of the lower ring have thick and thin subportions to increase the flexibility of the lower ring.
摘要:
A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portions. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.
摘要:
The present invention relates to an apparatus and method for improving and speeding up substrate loading process. One embodiment provides a method for vacuum chucking a substrate. The method comprises venting a center chamber of a flexible membrane configured for mounting the substrate, moving the substrate such that a backside of the substrate is in full contact with the flexible membrane, and vacuuming the center chamber to vacuum chuck the backside of the substrate to the flexible membrane.
摘要:
A two part retaining ring is described that has a lower ring and an upper ring. The lower ring contacts a polishing surface during chemical mechanical polishing. The upper surface and the lower surface of the lower ring have matching grooves formed therein to increase the flexibility of the lower ring.
摘要:
A flexible membrane for use in a carrier head has a generally circular main portion with a lower surface, an annular outer portion for connection to a base assembly, and an annular flap extending from the main portion on a side opposite the lower surface for connection to the base assembly. At least one surface of the flap has a surface texture to prevent adhesion.
摘要:
A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portions. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.
摘要:
A carrier head for chemical mechanical polishing of a substrate includes a base and a flexible membrane extending beneath the base. The flexible membrane includes a central portion with an outer surface providing a substrate receiving surface, a perimeter portion connecting the central portion to the base, and at least one flap extending from an inner surface of the central portion. The flap divides a volume between the flexible membrane and the base into a plurality of chambers, and the flap includes a laterally extending first section and an angled second section extending beneath the first section and connecting the laterally extending first section to the central portion.