Paper
12 June 2003 Impact of surfactant in developer on CD performance
Peng Zhang, Manuel Jaramillo Jr., Danielle M. King, Thomas J. Markley, Zarka Zarkov, David Witko, Ted A. Paxton, Todd Davis
Author Affiliations +
Abstract
Surfactant-formulated developers were utilized to enhance the CD performance for 365nm (I-line), 248nm (DUV) and 193nm resist processing. From one generation to the next, the resist surface becomes more and more hydrophobic, creating the need for enhanced surface wetting. Contact angle measurement of surfactant-formulated developers on different generations of resist surfaces, from 365nm to 157nm resist surfaces, indicated improved wetting. On-wafer testing showed significant improvement on CD uniformity with surfactant-formulated developers for 365nm, 248nm and 193nm processing. Faster development rates were also observed for chemically amplified resist systems, including 248nm, 193nm and 157nm.
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Peng Zhang, Manuel Jaramillo Jr., Danielle M. King, Thomas J. Markley, Zarka Zarkov, David Witko, Ted A. Paxton, and Todd Davis "Impact of surfactant in developer on CD performance", Proc. SPIE 5039, Advances in Resist Technology and Processing XX, (12 June 2003); https://doi.org/10.1117/12.485125
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KEYWORDS
Critical dimension metrology

Polymers

Semiconducting wafers

Photoresist developing

Crystals

Foam

Deep ultraviolet

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