Lapping apparatus and lapping method

Details Lapping apparatus and lapping method Lapping apparatus and lapping method

2006-04-25

2006-04-25

Thomas, David B. (Department: 3723)

Abrading

Precision device or process - or with condition responsive...

Computer controlled

C451S303000

Reexamination Certificate

active

07033245

ABSTRACT:
A lapping apparatus lapping a work having a pre-machined surface comprises a lapping film which includes a thin substrate having a surface provided with abrasive grains, a shoe disposed at a back surface side of the lapping film, a shoe driving unit which drives the shoe toward the work in order to press the abrasive-grained surface of the lapping film to the pre-machined surface of the work, a rotational driving unit which drives the work rotationally, a detecting unit which detects the position of the rotating work in the rotating direction, and a controlling unit which controls the pressing force of the shoe driving unit so as to drive the shoe correspondingly to the position of the work in the rotating direction during machining.

REFERENCES:
patent: 4833834 (1989-05-01), Patterson et al.
patent: 4993190 (1991-02-01), Hiyoshi et al.
patent: 5193314 (1993-03-01), Wormley et al.
patent: 5251404 (1993-10-01), Wasserbaech
patent: 5616070 (1997-04-01), Rice et al.
patent: 6354920 (2002-03-01), Judge et al.
patent: 6383063 (2002-05-01), Ohashi et al.
patent: 42 35 408 (1994-04-01), None
patent: 0 997 229 (2000-05-01), None
patent: 2825652 (2002-12-01), None
patent: 4-2770 (1992-01-01), None
patent: 5-9225 (1993-02-01), None
patent: 07-052005 (1995-02-01), None
patent: 7-237116 (1995-09-01), None
patent: 08257889 (1996-10-01), None
patent: 2000-205377 (2000-07-01), None
patent: 2000-263410 (2000-09-01), None

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