Paper
26 May 1995 Lithography strategy for printing 0.35 um devices
Satyendra S. Sethi, Mark William Barrick, Jason Massey, C. Froelich, Michele R. Weilemann, F. Garza
Author Affiliations +
Abstract
This paper discusses two lithography strategies for printing 0.35 micrometers features: broad band deep ultraviolet (DUV) lithography using a chemically amplified resist dyed to an optical density of 0.40 per micrometers and the use of high numerical aperture (NA) i-line lithography with an advanced i-line resist. Lithographic results such as linearity, exposure and focus latitudes, reflective notching control, and post exposure bake (PEB) delay time are compared. Results on product wafers are also illustrated. Finally, experimental data is compared with PROLITH/2 simulations.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Satyendra S. Sethi, Mark William Barrick, Jason Massey, C. Froelich, Michele R. Weilemann, and F. Garza "Lithography strategy for printing 0.35 um devices", Proc. SPIE 2440, Optical/Laser Microlithography VIII, (26 May 1995); https://doi.org/10.1117/12.209277
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KEYWORDS
Deep ultraviolet

Lithography

Printing

Semiconducting wafers

Chemically amplified resists

Reflectivity

Absorbance

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