A New Fabrication Process for Zr-Lined Zircaloy-2 Tubing

2008 ◽  
pp. 425-425-35 ◽  
Author(s):  
H Abe ◽  
K Takeda ◽  
A Uehira ◽  
H Anada ◽  
M Furugen
Keyword(s):  
Fabrication Process

Linewidth measurement using the low voltage SEM

1986 ◽  
Vol 44 ◽  
pp. 652-653
Author(s):  
M.G. Rosenfield
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Integrated Circuits ◽  
Secondary Electron ◽  
Low Voltage ◽  
Fabrication Process ◽  
Critical Dimensions ◽  
Linewidth Measurement ◽  
Threshold Technique ◽  
Scanning Electron

Minimum feature sizes in experimental integrated circuits are approaching 0.5 μm and below. During the fabrication process it is usually necessary to be able to non-destructively measure the critical dimensions in resist and after the various process steps. This can be accomplished using the low voltage SEM. Submicron linewidth measurement is typically done by manually measuring the SEM micrographs. Since it is desirable to make as many measurements as possible in the shortest period of time, it is important that this technique be automated.Linewidth measurement using the scanning electron microscope is not well understood. The basic intent is to measure the size of a structure from the secondary electron signal generated by that structure. Thus, it is important to understand how the actual dimension of the line being measured relates to the secondary electron signal. Since different features generate different signals, the same method of relating linewidth to signal cannot be used. For example, the peak to peak method may be used to accurately measure the linewidth of an isolated resist line; but, a threshold technique may be required for an isolated space in resist.

INTEGRATED FABRICATION PROCESS FOR SOLID OXIDE FUELCELLS USING HYBRID PLASMA SPRAYING

1997 ◽  
Vol 1 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Noriyuki Nomoto ◽  
Yoshitomi Okazaki ◽  
Kenji Kuroda ◽  
Shunji Takenoiri ◽  
Toyonobu Yoshida
Keyword(s):  
Plasma Spraying ◽  
Solid Oxide ◽  
Fabrication Process ◽  
Hybrid Plasma

scholarly journals Economical rapid-prototyping of aspherical lenses

2019 ◽  
Vol 215 ◽  
pp. 04001 ◽  
Author(s):  
Angelina Müller ◽  
Matthias C. Wapler ◽  
Ulrike Wallrabe
Keyword(s):  
Thermal Expansion ◽  
Rapid Prototyping ◽  
Shape Optimization ◽  
Surface Deformation ◽  
Fabrication Process ◽  
Aspherical Lens ◽  
Laser Structuring ◽  
Aspherical Lenses ◽  
Design Freedom ◽  
Micro Lens

We present a rapid-prototyping process to fabricate aspherical lens arrays based on surface deformation due to thermal expansion of PDMS. Using laser-structuring and molding in combination with an FEM-based shape optimization, we were able to design, fabricate and characterize different micro-lens arrays. This fabrication process can be used for almost any kind of arbitrary lens shape, which allows for a large design freedom for micro lenses.

Effect of low vacuum environment on the fused filament fabrication process

2021 ◽  
Author(s):  
Marshall Quinn ◽  
Ugo Lafont ◽  
Johan Versteegh ◽  
Jian Guo
Keyword(s):  
Fabrication Process ◽  
Fused Filament Fabrication

scholarly journals Waste eggshell membrane-templated synthesis of functional Cu2+–Cu+/biochar for an ultrasensitive electrochemical enzyme-free glucose sensor

RSC Advances ◽  
2021 ◽  
Vol 11 (31) ◽  
pp. 18994-18999
Author(s):  
Linzhi Li ◽  
Tianzeng Huang ◽  
Saijun He ◽  
Xing Liu ◽  
Qi Chen ◽  
...  
Keyword(s):  
Glucose Sensor ◽  
Glucose Sensing ◽  
Fabrication Process ◽  
Eggshell Membrane ◽  
Templated Synthesis ◽  
Free Glucose

The fabrication process of the nonenzyme glucose sensing based Cu2+–Cu+/biochar.

scholarly journals Aspects Concerning the Fabrication of Magnetorheological Fluids Containing High Magnetization FeCo Nanoparticles

Fluids ◽  
2021 ◽  
Vol 6 (3) ◽  
pp. 132
Author(s):  
Jon Gutiérrez ◽  
Virginia Vadillo ◽  
Ainara Gómez ◽  
Joanes Berasategi ◽  
Maite Insausti ◽  
...  
Keyword(s):  
Recent Literature ◽  
Chemical Reduction ◽  
Collaborative Work ◽  
Magnetorheological Fluid ◽  
Dipolar Interaction ◽  
Fabrication Process ◽  
Superior Performance ◽  
Strong Trend ◽  
Magnetic Dipolar Interaction ◽  
Feco Nanoparticles

Recently, our collaborative work in the fabrication of a magnetorheological fluid (MRF) containing high magnetization FeCo nanoparticles (NPs, fabricated in our laboratories using the chemical reduction technique; MS = 212 Am2/kg) as magnetic fillers have resulted in a new MRF with superior performance up to 616.7 kA/m. The MRF had a yield stress value of 2729 Pa and good reversibility after a demagnetization process. This value competes with the best ones reported in the most recent literature. Nevertheless, the fabrication process of this type of fluid is not an easy task since there is a strong trend to the aggregation of the FeCo NPs due to the strong magnetic dipolar interaction among them. Thus, now we present the analysis of some aspects concerning the fabrication process of our FeCo NPs containing MRF, mainly the type of surfactant used to cover those NPs (oleic acid or aluminium stearate) and its concentration, and the procedure followed (mechanical and/or ultrasound stirring) to achieve a good dispersion of those magnetic fillers within the fluid.

scholarly journals Hybrid Multisite Silicon Neural Probe with Integrated Flexible Connector for Interchangeable Packaging

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2605
Author(s):  
Ashley Novais ◽  
Carlos Calaza ◽  
José Fernandes ◽  
Helder Fonseca ◽  
Patricia Monteiro ◽  
...  
Keyword(s):  
Fabrication Process ◽  
High Signal ◽  
Wafer Level ◽  
Neural Probes ◽  
Insertion Force ◽  
Precise Integration ◽  
Flexible Cable ◽  
Flexible Polymer ◽  
Hybrid Silicon

Multisite neural probes are a fundamental tool to study brain function. Hybrid silicon/polymer neural probes combine rigid silicon and flexible polymer parts into one single device and allow, for example, the precise integration of complex probe geometries, such as multishank designs, with flexible biocompatible cabling. Despite these advantages and benefiting from highly reproducible fabrication methods on both silicon and polymer substrates, they have not been widely available. This paper presents the development, fabrication, characterization, and in vivo electrophysiological assessment of a hybrid multisite multishank silicon probe with a monolithically integrated polyimide flexible interconnect cable. The fabrication process was optimized at wafer level, and several neural probes with 64 gold electrode sites equally distributed along 8 shanks with an integrated 8 µm thick highly flexible polyimide interconnect cable were produced. The monolithic integration of the polyimide cable in the same fabrication process removed the necessity of the postfabrication bonding of the cable to the probe. This is the highest electrode site density and thinnest flexible cable ever reported for a hybrid silicon/polymer probe. Additionally, to avoid the time-consuming bonding of the probe to definitive packaging, the flexible cable was designed to terminate in a connector pad that can mate with commercial zero-insertion force (ZIF) connectors for electronics interfacing. This allows great experimental flexibility because interchangeable packaging can be used according to experimental demands. High-density distributed in vivo electrophysiological recordings were obtained from the hybrid neural probes with low intrinsic noise and high signal-to-noise ratio (SNR).

scholarly journals Recent Advances in Photoalignment Liquid Crystal Polarization Gratings and Their Applications

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 900
Author(s):  
Tiegang Lin ◽  
Jin Xie ◽  
Yingjie Zhou ◽  
Yaqin Zhou ◽  
Yide Yuan ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Optical Anisotropy ◽  
Review Paper ◽  
Fabrication Process ◽  
Polarization Gratings ◽  
High Diffraction Efficiency ◽  
Physical Principles ◽  
High Diffraction ◽  
Exposure Methods ◽  
Beam Split

Liquid crystal (LC) circular polarization gratings (PGs), also known as Pancharatnam–Berry (PB) phase deflectors, are diffractive waveplates with linearly changed optical anisotropy axes. Due to the high diffraction efficiency, polarization selectivity character, and simple fabrication process, photoalignment LC PGs have been widely studied and developed especially in polarization management and beam split. In this review paper, we analyze the physical principles, show the exposure methods and fabrication process, and present relevant promising applications in photonics and imaging optics.

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