In-depth analysis and characterization of a dual damascene process with respect to different CD

Gerd Krause; Detlef Hofmann; Boris Habets; Stefan Buhl; Manuela Gutsch; Alberto Lopez-Gomez; Wan-Soo Kim; Xaver Thrun

doi:10.1117/12.2302971

13 March 2018 In-depth analysis and characterization of a dual damascene process with respect to different CD

Gerd Krause, Detlef Hofmann, Boris Habets, Stefan Buhl, Manuela Gutsch, Alberto Lopez-Gomez, Wan-Soo Kim, Xaver Thrun

Proceedings Volume 10585, Metrology, Inspection, and Process Control for Microlithography XXXII; 105852T (2018) https://doi.org/10.1117/12.2302971
Event: SPIE Advanced Lithography, 2018, San Jose, California, United States

Abstract

In a 200 mm high volume environment, we studied data from a dual damascene process. Dual damascene is a combination of lithography, etch and CMP that is used to create copper lines and contacts in one single step. During these process steps, different metal CD are measured by different measurement methods. In this study, we analyze the key numbers of the different measurements after different process steps and develop simple models to predict the electrical behavior* . In addition, radial profiles have been analyzed of both inline measurement parameters and electrical parameters. A matching method was developed based on inline and electrical data. Finally, correlation analysis for radial signatures is presented that can be used to predict excursions in electrical signatures.

Citation Download Citation

Gerd Krause, Detlef Hofmann, Boris Habets, Stefan Buhl, Manuela Gutsch, Alberto Lopez-Gomez, Wan-Soo Kim, and Xaver Thrun "In-depth analysis and characterization of a dual damascene process with respect to different CD", Proc. SPIE 10585, Metrology, Inspection, and Process Control for Microlithography XXXII, 105852T (13 March 2018); https://doi.org/10.1117/12.2302971

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available