Manufacture of lapping board

Details Manufacture of lapping board Manufacture of lapping board

2007-12-04

2007-12-04

Marcheschi, Michael (Department: 1755)

Abrasive tool making process, material, or composition

Miscellaneous

C051S307000, C051S308000, C051S309000, C051S295000

Reexamination Certificate

active

10852145

ABSTRACT:
A method for manufacturing a lapping board having abrasive grains fixed on its surface, which is performed by the steps of: preparing a rotatable metal board having a surface of soft metal, an abrasive slurry-supplying tool arranged over the surface of the metal board, an abrasive-pressing tool which is placed on the metal board and has a hard surface, and a ultrasonic oscillation-generating tool attached to either or both of the abrasive-pressing tool and the metal board; rotating the metal board while supplying an abrasive slurry onto the surface of the metal board and while supplying electric power to the ultrasonic oscillation-generating tool to generate and apply ultrasonic oscillation to either or both of the abrasive-pressing tool and the metal board, whereby introducing the supplied abrasive slurry between the metal board and the abrasive-pressing tool and partly embedding some abrasive grains onto the metal board; and removing unfixed abrasive grains from the metal board.

REFERENCES:
patent: 5575707 (1996-11-01), Talieh et al.
patent: 6146250 (2000-11-01), Nagabushnam et al.
patent: 6368193 (2002-04-01), Carlson et al.
patent: 6913528 (2005-07-01), Schulz et al.
patent: 2004/0137830 (2004-07-01), Ohnishi
patent: 07-299737 (1995-11-01), None

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