Radiant energy – Irradiation of objects or material – Irradiation of semiconductor devices
Patent
1982-07-06
1984-07-17
Anderson, Bruce C.
Radiant energy
Irradiation of objects or material
Irradiation of semiconductor devices
250400, H01J 3700
Patent
active
RE0316300
ABSTRACT:
An electron beam with a cross-section shaped by two aperture plates and a deflector sequentially irradiates pattern areas within a plurality of unit squares on a workpiece in the X and Y directions. The workpiece is continuously shifted in the Y direction by a mechanical means, the amount of workpiece shift being detected to control the deflector and the shaping of said beam cross-section.
REFERENCES:
patent: 3644700 (1972-02-01), Kruppa
patent: 3922546 (1975-11-01), Livesay
patent: 4017403 (1977-04-01), Freeman
patent: 4112305 (1978-09-01), Goto et al.
patent: 4145597 (1979-03-01), Yasuda
patent: 4393312 (1983-07-01), Collier et al.
Goto Eiichi
Idesawa Masanori
Souma Takashi
Tanaka Kazumitsu
Anderson Bruce C.
Nihon Denshi Kabushiki Kaisha
Rikagaku Kenkyusho
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