Results 11 to 20 of about 19,199 (250)

A Multi-Angle Method for Simultaneous Retrieval of Aerosol Optical Depth and Bidirectional Reflectance Over Case II Waters

open access: yesFrontiers in Environmental Science, 2022
Retrieval of aerosol optical depth (AOD) and bidirectional reflectance over Case II waters is a challenging task because of the optical complexity of water and the significant influence of atmospheric scattering.
Zeying Han   +10 more
doaj   +1 more source

An Improved 3D OPC Method for the Fabrication of High-Fidelity Micro Fresnel Lenses

open access: yesMicromachines, 2023
Based on three-dimensional optical proximity correction (3D OPC), recent advancements in 3D lithography have enabled the high-fidelity customization of 3D micro-optical elements.
Fei Peng   +3 more
doaj   +1 more source

300 mm Large Area Wire Grid Polarizers with 50 nm Half-Pitch by ArF Immersion Lithography

open access: yesNanomaterials, 2022
The large area wire grid polarizers (LA-WGPs) with 50 nm half-pitch were fabricated using ArF immersion lithography overcoming the limit of the shot field size.
Jungchul Song   +5 more
doaj   +1 more source

A deep learning-based stripe self-correction method for stitched microscopic images

open access: yesNature Communications, 2023
Stitched fluorescence microscope images inevitably exist in various types of stripes or artifacts caused by uncertain factors such as optical devices or specimens, which severely affects the image quality and downstream quantitative analysis.
Shu Wang   +14 more
doaj   +1 more source

High-speed, large-area and high-precision fabrication of aspheric micro-lens array based on 12-bit direct laser writing lithography

open access: yesLight: Advanced Manufacturing, 2022
Aspheric micro-lens array (AMLA), featured with low dispersion and diffraction-limited imaging quality, plays an important role in advanced optical imaging. Ideally, the fabrication of commercially applicable AMLAs should feature low cost, high precision,
Shiyi Luan   +5 more
doaj   +1 more source

Improved two-photon photopolymerisation and optical trapping with aberration-corrected structured light

open access: yesFrontiers in Nanotechnology, 2022
We demonstrate the effectiveness of phase only aberration corrections of structured light and their application to versatile optical trapping setups. We calculate phase corrections before (ex-situ) and after (in-situ) a high numerical aperture microscope
D. J. Armstrong   +3 more
doaj   +1 more source

Study of Inverse Lithography Approaches based on Deep Learning

open access: yesJournal of Microelectronic Manufacturing, 2020
Computational lithography (CL) has become an indispensable technology to improve imaging resolution and fidelity of deep sub-wavelength lithography. The state-of-the-art CL approaches are capable of optimizing pixel-based mask patterns to effectively ...
Xianqiang Zheng   +4 more
doaj   +1 more source

The Variables and Invariants in the Evolution of Logic Optical Lithography Process

open access: yesJournal of Microelectronic Manufacturing, 2019
Photolithography has been a major enabler for the continuous shrink of the semiconductor manufacturing design rules. Throughout the years of the development of the photolithography, many new technologies have been invented and successfully implemented ...
Qiang Wu
doaj   +1 more source

Optical Proximity Correction With Linear Regression [PDF]

open access: yesIEEE Transactions on Semiconductor Manufacturing, 2008
An important step in today's integrated circuit (IC) manufacturing is optical proximity correction (OPC). In model-based OPC, masks are systematically modified to compensate for the nonideal optical and process effects of an optical lithography system.
Allan Gu, Avideh Zakhor
openaire   +1 more source

Fast and Robust DCNN Based Lithography SEM Image Contour Extraction Models

open access: yesJournal of Microelectronic Manufacturing, 2021
Scanning electron microscope (SEM) metrology is critical in semiconductor manufacturing for patterning process quality assessment and monitoring. Besides feature width and feature-feature space dimension measurements from critical dimension SEM (CDSEM ...
Tao Zhou   +9 more
doaj   +1 more source

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