Patent ID: 6358129
Filing Date: 2002-03-19
Classification: B24B,B25B,H01L

Abstract:
A backing member for selectively coupling a microelectronic-device substrate assembly to a carrier head of a planarizing machine, comprising:a body having a first surface configured to be received by the carrier head and substantially contacting the carrier head, and a second surface configured to support a backside of a substrate assembly; a first vacuum passageway extending through the body, the first passageway being configured to be coupled to a vacuum source; and a plurality of second vacuum passageways extending through the body, each second passageway having an aperture exposed to the first vacuum passageway, and an opening exposed at the second surface of the body, each second vacuum passageway having a fluid impermeable wall and being coupled to the first passageway to transfer a vacuum force drawn in the first passageway through the openings for pulling the backside of the substrate assembly against the second surface of the body.