Laser bandwidth effect on overlay budget and imaging for the 45 nm and 32nm technology nodes with immersion lithography

U Iessi, M Kupers, E De Chiara… - Optical …, 2010 - spiedigitallibrary.org
The laser bandwidth and the wavelength stability are among the important factors
contributing to the CD Uniformity budget for a 45 nm and 32nm technology node NV …

Active spectral control of optical source

N Seong, IB Lalovic, NR Farrar, RJ Rafac… - US Patent …, 2013 - Google Patents
M. Terry et al.,“Behavior of lens aberrations as a function of wave length on KrF and ArF
lithography scanners.” Proc. SPIE Optical Microlithography XIV 4346, 15 (2001), 11 pages …

Lower BW and its impact on the patterning performance

P Alagna, G Rechtsteiner, V Timoshkov… - Optical …, 2016 - spiedigitallibrary.org
Patterning solutions based on ArF immersion lithography are the fundamental enablers of
device scaling. In order to meet the challenges of industry technology roadmaps, tool …

Impact of bandwidth on contrast sensitive structures for low k1 lithography

W Conley, S Hsieh, P Alagna, Y Hou… - Optical …, 2015 - spiedigitallibrary.org
Double-patterning ArF immersion lithography continues to advance the patterning resolution
and overlay requirements and has enabled the continuation of semiconductor bit-scaling …

Improving on-wafer CD correlation analysis using advanced diagnostics and across-wafer light-source monitoring

P Alagna, O Zurita, G Rechtsteiner… - Optical …, 2014 - spiedigitallibrary.org
With the implementation of multi-patterning ArF-immersion for sub 20nm integrated circuits
(IC), advances in equipment monitoring and control are needed to support on-wafer yield …

Fast and accurate laser bandwidth modeling of optical proximity effects

I Lalovic, O Kritsun, J Bendik, M Smith… - Photomask …, 2007 - spiedigitallibrary.org
In this work, we model the effects of excimer laser bandwidth on optical proximity effects in
high-NA ArF dry and immersion lithography. We quantify the errors introduced by using …

Impact of bandwidth variation on OPC model accuracy

W Conley, P Alagna, S Hsu… - Optical Microlithography …, 2016 - spiedigitallibrary.org
Over the years, Lithography Engineers continue to focus on CD control, overlay and process
capability to meet current node requirements for yield and device performance. Reducing or …

Focus drilling for increased process latitude in high-NA immersion lithography

I Lalovic, J Lee, N Seong, N Farrar… - Optical …, 2011 - spiedigitallibrary.org
In this paper we discuss a laser focus drilling technique which has recently been developed
for advanced immersion lithography scanners to increase the depth of focus and therefore …

Improvements in bandwidth and wavelength control for XLR 660xi systems

W Conley, H Dao, D Dunlap, RP Flores… - Optical …, 2014 - spiedigitallibrary.org
As chipmakers continue to reduce feature sizes and shrink CDs on the wafer to meet
customer needs, Cymer continues developing light sources that enable advanced …

The influence of asymmetric spectrum of DUV light on imaging performance in advanced technology nodes

Y Zhu, L Dong, Y Wei - Optical and EUV Nanolithography …, 2024 - spiedigitallibrary.org
In the manufacturing of advanced integrated circuits, ArF immersion lithography remains the
primary tool for the patterning process. With the increasing requirements for critical …