Invention Grant
US09568844B2 Movable body drive system and movable body drive method, pattern formation apparatus and method, exposure apparatus and method, device manufacturing method, and decision-making method 有权
移动体驱动系统和移动体驱动方法,图案形成装置和方法,曝光装置和方法,装置制造方法和决策方法

  • Patent Title: Movable body drive system and movable body drive method, pattern formation apparatus and method, exposure apparatus and method, device manufacturing method, and decision-making method
  • Patent Title (中): 移动体驱动系统和移动体驱动方法,图案形成装置和方法,曝光装置和方法,装置制造方法和决策方法
  • Application No.: US14168299
    Application Date: 2014-01-30
  • Publication No.: US09568844B2
    Publication Date: 2017-02-14
  • Inventor: Yuichi Shibazaki
  • Applicant: NIKON CORPORATION
  • Applicant Address: JP Tokyo
  • Assignee: NIKON CORPORATION
  • Current Assignee: NIKON CORPORATION
  • Current Assignee Address: JP Tokyo
  • Agency: Oliff PLC
  • Priority: JP2006-236783 20060831
  • Main IPC: G03B27/42
  • IPC: G03B27/42 G03B27/58 G03B27/32 G03F7/20
Movable body drive system and movable body drive method, pattern formation apparatus and method, exposure apparatus and method, device manufacturing method, and decision-making method
Abstract:
A drive unit drives a wafer table in a Y-axis direction based on a measurement value of an encoder that measures position information of the wafer table in the Y-axis direction and based on known correction information in accordance with position information of the wafer table in a non-measurement direction (e.g. Z, θz and θx directions) that is measured by an interferometer at the time of the measurement by the encoder. That is, the wafer table (a movable body) is driven in the Y-axis direction based on the measurement value of the encoder that has been corrected by correction information for correcting a measurement error of the encoder that is caused by a relative displacement of a head and a scale in the non-measurement direction. Accordingly, the movable body can be driven with high accuracy in a desired direction while measuring the position by the encoder, without being affected by the relative motion between the head and the scale in directions other than a direction to be measured (measurement direction).
Information query
Patent Agency Ranking
0/0