Abstract: A novel method for whole field thin film stress evaluation is provided. Through the provided method, the whole filed thin film stress distribution for an optical thin film would be developed with a commercial interferometer, so that a whole field evaluation for the crack or peel-off of thin film is hence achievable.
Type:
Grant
Filed:
May 9, 2006
Date of Patent:
July 22, 2008
Assignee:
Instrument Technology Research Center, National Applied Laboratories
Inventors:
Chi Hung Huang, Hsien-I You, Mao-Yuan Shih, Chien-Jen Chen