Topic
Lithography
About: Lithography is a research topic. Over the lifetime, 23507 publications have been published within this topic receiving 348321 citations.
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104 citations
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TL;DR: In this paper, an alternative nanofabrication method which relies on self-assembly of colloidal particles into a two-dimensional array on surfaces is reported. But the method is not suitable for use as a lithographic mask.
104 citations
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19 Jul 2005
TL;DR: In this paper, an image forming material, a lithographic printing plate precursor and a method for obtaining a color image with good visibility by laser exposure is provided, where the image forming materials and the lithographic print plate precursor each comprising a support and a layer comprising a compound represented by formula.
Abstract: An image forming material, a lithographic printing plate precursor and a lithographic printing method, in which a color image with good visibility is obtained by laser exposure, are provided, wherein the image forming material and the lithographic printing plate precursor each comprising a support and a layer comprising a compound represented by formula (1) which changes from a colorless state to a colored state by the effect of heat; and a lithographic printing method comprising on-press development using the lithographic printing plate precursor:
104 citations
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TL;DR: It is shown that controlled wrinkling can serve as an alternative pathway to producing lithographically produced masters that can even show submicron periodicities, and upscaling to larger areas is expected to be considerably simpler than that for existing techniques.
Abstract: We report on a novel lithography-free method for obtaining chemical submicron patterns of macromolecules on flat substrates. The approach is an advancement of the well-known microcontact printing scheme: While for classical microcontact printing lithographically produced masters are needed, we show that controlled wrinkling can serve as an alternative pathway to producing such masters. These can even show submicron periodicities. We expect upscaling to larger areas to be considerably simpler than that for existing techniques, as wrinkling results in a macroscopic deformation process that is not limited in terms of substrate size. Using this approach, we demonstrate successful printing of aqueous solutions of polyelectrolytes and proteins. We study the effectiveness of the stamping process and its limits in terms of periodicities and heights of the stamps' topographical features. We find that critical wavelengths are well below 355 nm and critical amplitudes are below 40 nm and clarify the failure mechanism in this regime. This will permit further optimization of the approach in the future.
104 citations
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TL;DR: The quality factor of 11 achieved with the HIL fabricated structures matched the theoretically predicted quality factor for the idealized flawless gold resonators calculated by finite-difference time-domain (FDTD).
Abstract: Optical antenna structures have revolutionized the field of nano-optics by confining light to deep subwavelength dimensions for spectroscopy and sensing. In this work, we fabricated coaxial optical antennae with sub-10-nanometer critical dimensions using helium ion lithography (HIL). Wavelength dependent transmission measurements were used to determine the wavelength-dependent optical response. The quality factor of 11 achieved with our HIL fabricated structures matched the theoretically predicted quality factor for the idealized flawless gold resonators calculated by finite-difference time-domain (FDTD). For comparison, coaxial antennae with 30 nm critical dimensions were fabricated using both HIL and the more common Ga focus ion beam lithography (Ga-FIB). The quality factor of the Ga-FIB resonators was 60% of the ideal HIL results for the same design geometry due to limitations in the Ga-FIB fabrication process.
104 citations