Patent · US Expired

Method of exposing using electron beam

US7154105B2 · kind B2 · utility

0Cited by
3References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 25, 2005
Grant dateDec 26, 2006
Priority date
Expiry dateFeb 25, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S430/143
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

Provided is a method of exposing using an electron beam. The provided method of exposing using the electron beam includes defining main fields on an exposure area of an electron beam exposure target and defining a plurality of sub-fields on the main fields, selecting a main field to be exposed, selecting at least one sub-field of the selected main field, exposing the selected sub-field by using the electron beam, and selecting at least one of the other sub-field, which is not adjacent to the previously selected sub-field and not exposed yet, and exposing the sub-field by using the electron beam.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.