Results 21 to 30 of about 169 (158)

Influence of wet etching in KOH on defects in silicon nanowires formed by cryogenic dry etching

open access: yesJournal of Physics: Conference Series, 2020
Abstract The work is devoted to exploration of arrays of vertical aligned silicon nanowires (SiNWs) obtained by cryogenic dry etching in ICP mode with height of 4.5-5.5 μm and aspect ratio of 7. It was shown that geometry of nanowires has crucial influence on rate of wet etching in KOH since it is higher for 3D objects than for planar ...
A I Baranov   +5 more
openaire   +1 more source

Lumped element granular aluminum resonators with high kinetic inductances

open access: yesAIP Advances, 2021
Recently, a new kind of distributed element superconducting resonators with granular aluminum (grAl) has been developed for circuit quantum electrodynamics. Given that lumped element resonators possess certain advantages over the distributed element ones,
Q. He   +7 more
doaj   +1 more source

High Strain Rate and Stress-State-Dependent Martensite Transformation in AISI 304 at Low Temperatures

open access: yesMetals, 2022
Deformation-induced martensitic transformation as the basis of a hardening process is dependent, among others, on the stress state. In applications such as cryogenic cutting, where a hardened martensitic subsurface can be produced in metastable ...
Lara Vivian Fricke   +5 more
doaj   +1 more source

Proposals for Next-Generation Eco-Friendly Non-Flammable Refrigerants for a −100 °C Semiconductor Etching Chiller Based on 4E (Energy, Exergy, Environmental, and Exergoeconomic) Analysis

open access: yesEnergies
Recent advancements in cryogenic etching, characterized by high aspect ratios and etching rates, address the growing demand for enhanced performance and reduced power consumption in electronics. To precisely maintain the temperature under high loads, the
Hye-In Jung   +2 more
doaj   +1 more source

Dense high aspect ratio nanostructures for cell chip applications - Fabrication, replication, and cell interactions

open access: yesMicro and Nano Engineering, 2022
Culturing human cells on the surface of a microchip brings living cells in direct contact with artificial microstructured surfaces. This work focuses on the effect of high aspect ratio nanostructures – dense nanoneedle arrays – on the mechanical response
Markus Pribyl   +8 more
doaj   +1 more source

Nanofabrication of SOI-Based Photonic Waveguide Resonators for Gravimetric Molecule Detection

open access: yesProceedings, 2019
A silicon photonic microresonator comprising two curved vertical grating couplers and a single suspended Si nanowaveguide (NWG) is developed to investigate the giant enhanced Brillouin scattering in subwavelength NWGs caused by photon-phonon interaction.
Tony Granz   +9 more
doaj   +1 more source

Terahertz nanospectroscopy of plasmon polaritons for the evaluation of doping in quantum devices

open access: yesNanophotonics, 2023
Terahertz (THz) waves are a highly sensitive probe of free carrier concentrations in semiconducting materials. However, most experiments operate in the far-field, which precludes the observation of nanoscale features that affect the material response ...
Guo Xiao   +8 more
doaj   +1 more source

Fluorine–Silicon Surface Reactions during Cryogenic and Near Room Temperature Etching [PDF]

open access: yesThe Journal of Physical Chemistry C, 2014
Cyrogenic etching of silicon is envisaged to enable better control over plasma processing in the microelectronics industry, albeit little is known about the fundamental differences compared to the ...
Tinck, Stefan   +2 more
openaire   +2 more sources

Microfabrication of large-area circular high-stress silicon nitride membranes for optomechanical applications

open access: yesAIP Advances, 2016
In view of the integration of membrane resonators with more complex MEMS structures, we developed a general fabrication procedure for circular shape SiNx membranes using Deep Reactive Ion Etching (DRIE).
E. Serra   +18 more
doaj   +1 more source

Arrays of Sub-Terahertz Cryogenic Metamaterial

open access: yesApplied Sciences, 2021
Integrated quasi-optical cryogenic terahertz receivers contain arrays of detectors, quasi-optical filters, interferometers, and other metamaterials. Matrices of quasi-optical band-pass, low-pass, and high-pass filters, Fabry–Perot grid interferometers ...
Mikhail Tarasov   +4 more
doaj   +1 more source

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