At-wavelength detection of extreme ultraviolet lithography mask blank defects

Autor: Mourad Idir, Rick Levesque, Seongtae Jeong, Pei-yang Yan, Patrick A. Kearney, Paul Denham, Michael S. Jones, Yun Lin, Jeffrey Bokor, Eric M. Gullikson, Lewis Johnson, James H. Underwood, Seno Rekawa, Phil Batson
Rok vydání: 1998
Předmět:
Zdroj: Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. 16:3430
ISSN: 0734-211X
DOI: 10.1116/1.590473
Popis: We report the design and operation of an at-wavelength system for extreme ultraviolet lithography mask blank defect detection. Initial results demonstrate sensitivity to submicron size phase defects. The performance of the system is compared with the practical requirements for a mask blank inspection system in terms of the sensitivity and scanning time.
Databáze: OpenAIRE