Results 11 to 20 of about 187,538 (302)

Research on Sapphire Deep Cavity Corrosion and Mask Selection Technology

open access: yesMicromachines, 2021
Aimed at the problem of the small wet etching depth in sapphire microstructure processing technology, a multilayer composite mask layer is proposed. The thickness of the mask layer is studied, combined with the corrosion rate of different materials on ...
Ying-Qi Shang   +2 more
doaj   +1 more source

Optofluidic Particle Manipulation Platform with Nanomembrane

open access: yesMicromachines, 2022
We demonstrate a method for fabricating and utilizing an optofluidic particle manipulator on a silicon chip that features a 300 nm thick silicon dioxide membrane as part of a microfluidic channel.
Zachary J. Walker   +9 more
doaj   +1 more source

The application of silicon dioxide as an electret material [PDF]

open access: yes, 1988
The authors have investigated silicon dioxide for its electret properties. It appears that thermally grown silicon dioxide has a large lateral surface conductivity, resulting in poor electret behavior.
Bergveld, P.   +2 more
core   +2 more sources

High Sensitivity Ultraviolet Light Off-Stoichiometric Silicon Oxide-Based Sensors

open access: yesProceedings, 2017
We have developed a UV silicon detector made of silicon and off-stoichiometric silicon dioxide that shows high efficiency and is completely compatible with silicon devices technology.
Jesús Carrillo   +3 more
doaj   +1 more source

Microorganism adhesion using silicon dioxide: An experimental study

open access: yesHeliyon, 2020
In this study, spectrophotometry was used to measure changes in the absorbance properties of yeast, Gram-positive, and Gram-negative bacteria after their attachment to silicon dioxide microparticles (silica).
Roberts Lozins   +2 more
doaj   +1 more source

Comparison Between Different Ways in Making Silicon Dioxide Layer on Silicon Wafers

open access: yesMATEC Web of Conferences, 2017
The most important raw material for power device is epitaxial wafers, which is made from heavily doped polishing silicon wafers. In order to prevent dopant doped into silicon while pulling ingots spread into the epitaxial atmosphere and finally into the ...
Sun Chenguang   +4 more
doaj   +1 more source

Application of Nano-Silicon Dioxide Improves Salt Stress Tolerance in Strawberry Plants

open access: yesAgronomy, 2019
Silicon application can improve productivity outcomes for salt stressed plants. Here, we describe how strawberry plants respond to treatments including various combinations of salt stress and nano-silicon dioxide, and assess whether nano-silicon dioxide ...
Saber Avestan   +3 more
doaj   +1 more source

Raman Spectra of High-κ Dielectric Layers Investigated with Micro-Raman Spectroscopy Comparison with Silicon Dioxide

open access: yesThe Scientific World Journal, 2013
Three samples with dielectric layers from high-κ dielectrics, hafnium oxide, gadolinium-silicon oxide, and lanthanum-lutetium oxide on silicon substrate were studied by Raman spectroscopy.
P. Borowicz   +4 more
doaj   +1 more source

Ultrasonic attenuation of an agar, silicon dioxide, and evaporated milk gel phantom

open access: yesJournal of Medical Ultrasound, 2021
Background: It has been demonstrated that agar-based gel phantoms can emulate the acoustic parameters of real tissues and are the most commonly used tissue-mimicking materials for high-intensity focused ultrasound applications.
Theocharis Drakos   +7 more
doaj   +1 more source

The effect of nano-silica on the mechanical properties of composite polyester / carbon fibers

open access: yesJournal of Mechanical Engineering and Sciences, 2022
This study conducted several tensile tests to determine the effect of 20-30 nm silicon dioxide nanopowder on the mechanical properties of composite material polyester/carbon fiber. Samples were prepared at weight fractions of carbon fibers (i.e. 25, 40,
Raed Hwayyin, S.K. Hussien, A.S. Ameed
doaj   +1 more source

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