Systems and methods for controlling the voltage on the lens...

Details Systems and methods for controlling the voltage on the lens... Systems and methods for controlling the voltage on the lens...

2006-09-05

2006-09-05

Tran, Thang V. (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S126000

Reexamination Certificate

active

07102979

ABSTRACT:
Methods for controlling the voltage on a lens of an electron emitting device are provided. A representative method includes: supplying an emitter voltage to an electron emitter in the electron emitting device, wherein a current amplitude is established; sensing the emitter voltage on the electron emitter; supplying a non-inverted input voltage to an amplifier that follows the emitter voltage; and providing an amplifier output voltage from the amplifier to the lens, wherein the amplifier output voltage corresponds to the emitter voltage at the electron emitter. Systems, devices and other methods also are provided.

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patent: 6515287 (2003-02-01), Notte, IV
patent: 6643248 (2003-11-01), Naberhuis et al.
patent: 6797965 (2004-09-01), Abe
patent: 6872964 (2005-03-01), Naberhuis et al.
patent: 2004/0213128 (2004-10-01), Marshall

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