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Title:
IMPROVED PATTERN GENERATOR FOR STITCHING ERROR PREVENTION
Document Type and Number:
Japanese Patent JP2009033190
Kind Code:
A
Abstract:

To provide a pattern generator for solving the problem of stitching error.

An apparatus and method of forming a pattern on a work piece are provided. The apparatus includes a light source for radiating a wide range of light from extreme ultraviolet ray to infrared ray; a spatial light modulator configured to be mounted on a precision stage, to have many modulation elements, and to be illuminated by the radiated light; a projecting system for forming the image of the spatial light modulator on the work piece; an electric data processing and transmitting system for receiving the digital expression of the pattern to be written to modulate the pattern to a modulation signal, and to supply the modulated signal to the space light modulator; a high precision mechanical system for mutually positioning the work piece and/or projection system; an electronic control system for printing a pattern to the work piece by regulating the position of the work piece, the supply of modulated signal to the spatial light modulator, and radiation intensity; and a means for rotating the system of coordinate of the pattern to be printed against the system of coordinate of the work piece on a positioning stage.


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Inventors:
SANDSTROEM TORBJOERN
Application Number:
JP2008237405A
Publication Date:
February 12, 2009
Filing Date:
September 17, 2008
Export Citation:
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Assignee:
MICRONIC LASER SYST AB
International Classes:
H01L21/027; B23K26/06; B23Q17/24; G02B26/00; G02B26/02; G02B26/06; G02B26/08; G03F1/00; G03F1/08; G03F7/20; G03F7/207; H04N1/195; H04N5/74
Domestic Patent References:
JPH0423314A1992-01-27
JPH1050604A1998-02-20
JPH09260250A1997-10-03
JPH09148221A1997-06-06
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Yutaka Yoshida
Yukio Iwamoto