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Title:
CHARGED PARTICLE BEAM EQUIPMENT AND METHOD FOR ADJUSTING AXIS OF APERTURE
Document Type and Number:
WIPO Patent Application WO/2008/023559
Kind Code:
A1
Abstract:
Charged particle beam equipment in which the position of the central axis of an aperture can be adjusted easily with high precision in a short time, and a method for adjusting the axis of an aperture. The charged particle beam equipment (1) comprises a charged particle source (9), an aperture (18), an objective lens (12), an observation means (32), an aperture drive section (19), and a control section (30). The control section (30) comprises a spot pattern forming means (33) for forming a plurality of spot patterns on the surface (N1) of a sample (N) by irradiating it with a charged particle beam (I), an analysis means (34) for calculating the position of spot center of a spot pattern and the geometrical central position of halo, and a adjustment position determining means (35) for calculating an adjustment position based on a position where the lines connecting the positions of spot centers in individual spot patterns with the central positions of halos intersect. Position of the aperture (18) is adjusted by shifting the central axis of the aperture (18) to the adjustment position.

Inventors:
OGAWA, Takashi (8 Nakase 1-chome, Mihama-k, Chiba-shi Chiba 07, 2618507, JP)
小川 貴志 (〒07 千葉県千葉市美浜区中瀬1丁目8番地 エスアイアイ・ナノテクノロジー株式会社内 Chiba, 2618507, JP)
YAMAMOTO, Yo (8 Nakase 1-chome, Mihama-k, Chiba-shi Chiba 07, 2618507, JP)
Application Number:
JP2007/065237
Publication Date:
February 28, 2008
Filing Date:
August 03, 2007
Export Citation:
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Assignee:
SII NANOTECHNOLOGY INC. (8 Nakase 1-chome, Mihama-ku Chiba-shi Chiba, 07, 2618507, JP)
エスアイアイ・ナノテクノロジー株式会社 (〒07 千葉県千葉市美浜区中瀬1丁目8番地 Chiba, 2618507, JP)
OGAWA, Takashi (8 Nakase 1-chome, Mihama-k, Chiba-shi Chiba 07, 2618507, JP)
小川 貴志 (〒07 千葉県千葉市美浜区中瀬1丁目8番地 エスアイアイ・ナノテクノロジー株式会社内 Chiba, 2618507, JP)
International Classes:
H01J37/09; H01J37/04; H01J37/317; H01J37/09; H01J37/04; H01J37/317
Attorney, Agent or Firm:
MATSUSHITA, Yoshiharu (AIOS Hiroo Building 807, 11-2 Hiroo 1-chome, Shibuya-ku Tokyo 12, 1500012, JP)
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