Substrate and substrate holder

Details Substrate and substrate holder Substrate and substrate holder

1983-11-02

1985-12-10

Lusignan, Michael R.

Dynamic magnetic information storage or retrieval

Record medium

Disk

118 50, 118728, 118724, 204192R, 204298, 427128, 427132, 427209, 427294, G11B 582, B05D 300, B05D 512

Patent

active

045583889

ABSTRACT:
A substrate having two parallel planar faces and an edge with a groove is simultaneously coated on both sides in a vacuum chamber. The substrate is raised, lowered and held on edge while the parallel faces are vertically disposed by a blade inserted into the groove so that while the substrate is coated an unobstructed path exists for the coating material to the faces.

REFERENCES:
patent: 1229428 (1917-06-01), Fabritius
patent: 1945572 (1934-02-01), Sandbrook
patent: 2349908 (1944-05-01), La Motte
patent: 3396696 (1968-08-01), Becker
patent: 3516386 (1970-06-01), Landwehr et al.
patent: 3808079 (1974-04-01), Akashi et al.
patent: 3874525 (1975-04-01), Hassan et al.
patent: 4311427 (1982-01-01), Coad et al.
U.S. application Ser. No. 515,247; Boys; Donald R. et al., Disk or Wafer Handling and Coating System, filed 07/19/83.

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