Patent ID: 10115563

Abstract:
An electron-beam lithography method includes, computing and outputting a development time of a positive-tone electron-sensitive layer and a parameter recipe of an electron-beam device by using a pattern dimension simulation system, performing a low-temperature treatment to chill a developer solution, utilizing an electron-beam to irradiate an exposure region of the positive-tone electron-sensitive layer based on the parameter recipe, and utilizing the chilled developer solution to develop a development region of the positive-tone electron-sensitive layer based on the development time. The development region is present within the exposure region, and an area of the exposure region is smaller than that of the first portion. As a result, the electron-beam lithography method may control a dimension of a development pattern of the positive-tone electron-sensitive layer more accurately, and may also shrink a minimum dimension of the development pattern of the positive-tone electron-sensitive layer.