Single-shot Interferometry of Film-covered Objects

Autor: Kazuyoshi Suzuki, Takuto Naito, Hidemitsu Ogawa, Masashi Sugiyama, Katsuichi Kitagawa
Rok vydání: 2009
Předmět:
Zdroj: Journal of the Japan Society for Precision Engineering. 75:1315-1322
ISSN: 1882-675X
0912-0289
Popis: In the semiconductor and LCD manufacturing industry, there is a strong demand for measuring film thickness and surface profiles of film-covered objects. In this paper, we propose a single-shot algorithm for simultaneous measurement of film thickness and surface profiles. Unlike existing multiple-shot methods, our method requires only one image for measurement and thus it is fast and highly robust against vibration.
Databáze: OpenAIRE