Method and system for automatically correcting aberrations of a

Details Method and system for automatically correcting aberrations of a Method and system for automatically correcting aberrations of a

1974-06-26

1978-01-03

Truhe, J. V.

Electric heating

Metal heating

By arc

219121EB, B23K 1500

Patent

active

040668630

ABSTRACT:
The location of a beam of charged particles within a deflection field is determined by its orthogonal deflection voltages. With the location of the beam in the field, correction currents are supplied to a focus coil and to each of a pair of stigmator coils to correct for change of focal length and astigmatism due to the beam being deflected away from the center of its deflection field.

REFERENCES:
patent: 2831145 (1958-04-01), Albert et al.
patent: 2951965 (1960-09-01), Durnal
patent: 3150284 (1964-09-01), Comeau
patent: 3422305 (1969-01-01), Infante
patent: 3619707 (1971-11-01), Simshauser
patent: 3644700 (1972-02-01), Kruppa et al.
patent: 3714496 (1973-01-01), Horvath
patent: 3740608 (1973-06-01), Manber et al.
patent: 3793554 (1974-02-01), Rossaert
patent: 3806758 (1974-04-01), Lundgvist

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