Electron beam recorder and method thereof

Details Electron beam recorder and method thereof Electron beam recorder and method thereof

2006-01-10

2006-01-10

Edun, Muhammad (Department: 2655)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Electrical modification or sensing of storage medium

C369S100000, C250S306000

Reexamination Certificate

active

06985425

ABSTRACT:
Pits are exposed and formed on a resist master disc by an electron beam recorder. A leading end and a trailing end of each pit are substantially the same form. The electron beam recorder includes: an electron beam source that discharges electron beams; a voltage controller that generates voltages based on a predetermined information signals; control electrodes that deflect the electron beams based on the voltages; a shield plate having a passing position to pass the electron beams and a shielding position to shield the electron beams; and a turntable that carries and rotates the disc. The voltage controller controls the voltages applied to the control electrodes to substantially equalize a first velocity of the electron beams to travel from a first shielding position to the passing position with a second velocity of the electron beams to travel from the passing position to a second shielding position.

REFERENCES:
patent: 6636460 (2003-10-01), Akiyama et al.
patent: 6741524 (2004-05-01), Ichihara et al.
patent: 6838675 (2005-01-01), Harada et al.
patent: 11-288532 (1999-10-01), None

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