EUV-induced hydrogen plasma: pulsed mode operation and confinement in scanner

M van de Kerkhof, AM Yakunin… - Journal of Micro …, 2021 - spiedigitallibrary.org
In recent years, EUV lithography scanner systems have entered high-volume manufacturing
for state-of-the-art integrated circuits, with critical dimensions down to 10 nm. This …

Uncertainties in the reconstruction of nanostructures in EUV scatterometry and grazing incidence small-angle X-ray scattering

AF Herrero, M Pflüger, J Puls, F Scholze… - Optics …, 2021 - opg.optica.org
Increasing miniaturization and complexity of nanostructures require innovative metrology
solutions with high throughput that can assess complex 3D structures in a non-destructive …

Wavelength-specific reflections: A decade of extreme ultraviolet actinic mask inspection research

KA Goldberg, I Mochi - Journal of Vacuum Science & Technology B, 2010 - pubs.aip.org
Mask inspection is essential for the success of any pattern transfer lithography technology,
and extreme ultraviolet lithography (EUVL), in particular, faces unique challenges. EUV …

Study of EUV reticle storage effects through exposure on EBL2 and NXE

R Jonckheere, CC Wu… - Extreme Ultraviolet …, 2020 - spiedigitallibrary.org
A parallelism is reported between reticle lifetime experiments undertaken on TNO's EBL2
platform and wafer printing on the ASML NXE EUV scanner installed at imec. EBL2 mimics …

Predicting radiation-induced carbon contamination of EUV optics

JT Hollenshead, LE Klebanoff… - Journal of Vacuum Science …, 2019 - pubs.aip.org
Predictions are made for the radiation-induced carbon contamination threat to ruthenium-
coated extreme ultraviolet (EUV) optics for a range of incident EUV intensities, exposure …

Contamination Removal From UV and EUV Photomasks

RP Venkatesh, MS Kim, JG Park - Developments in Surface Contamination …, 2017 - Elsevier
In semiconductor fabrication industries, photomask cleaning with no pattern damage is a
critical issue, especially for advanced technology nodes. Thus, optimization of cleaning …

Opportunities of polarization-resolved EUV scatterometry on photomasks

V Soltwisch, T Biskup, M Kolbe… - 38th European Mask …, 2023 - spiedigitallibrary.org
The development of EUV scatterometry, as a potentially interesting option for the
characterization of photomasks, has made significant progress in the last decade. The at …

[HTML][HTML] Actinic critical dimension measurement of contaminated extreme ultraviolet mask using coherent scattering microscopy

J Uk Lee, S Hong, J Ahn, J Doh… - Journal of Vacuum Science …, 2014 - pubs.aip.org
The authors evaluated the feasibility of using coherent scattering microscopy (CSM) as an
actinic metrology tool by employing it to determine the critical dimension (CD) and …

Carbon contamination of EUV mask and its effect on CD performance

S Lee, JG Doh, JU Lee, I Lee, CY Jeong, DG Lee… - Current Applied …, 2011 - Elsevier
The carbon contamination on extreme ultraviolet (EUV) masks is a critical issue causing
throughput degradation and unexpected effects on imaging performance. In this work, a …

[PDF][PDF] Determination of the CD performance and carbon contamination of an EUV mask by using a coherent scattering microscopy/in-situ contamination system

J Doh, CY Jeong, S Lee, JU Lee, H Cha… - Journal of the Korean …, 2010 - researchgate.net
Extreme ultraviolet lithography (EUVL) is one of the leading candidates for next-generation
lithography technology for the 32-nm half-pitch node and beyond [1]. However, carbon …