Results 211 to 220 of about 17,125 (245)
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A new lift-off metallization technique for high speed bipolar LSI's
1979 International Electron Devices Meeting, 1979A new lift-off technique, employing PIQ®as the lift-off layer with an Mo mask and reactive RF sputter etching for patterning, is developed to provide two level, highly packed interconnection metallization. The minimum pitches of the first and second level metallization and via-holes are 5, 7 and 7 µm, respectively.
Y. Homma, H. Nozawa, S. Harada
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Theoretical Prediction of the Lift-Off Speed in Aerodynamic Compliant Foil Journal Bearings
Volume 6: Structures and Dynamics, Parts A and B, 2010In aerodynamic bearings, since the supporting air film is generated by rotor motion, there is no support at the start of motion. As in all such bearings, there is dry rubbing until the rotor achieves sufficient speed to lift-off. Thus, the lower the lift-off speed, the less will be the rubbing and so the greater will be the life of the bearing.
Shemiao Qi +3 more
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Advances in Engineering Software, 2006
It has been found that the probability density function (PDF) of lift-off or initial speeds of wind-blown sand ejecting from a sand bed plays a central role in the research of mechanism of wind-blown sands. This article presents an approach for developing the PDF of lift-off speeds on the basis of the conventional experimental measurements of sand-flux
Ning Huang +2 more
exaly +2 more sources
It has been found that the probability density function (PDF) of lift-off or initial speeds of wind-blown sand ejecting from a sand bed plays a central role in the research of mechanism of wind-blown sands. This article presents an approach for developing the PDF of lift-off speeds on the basis of the conventional experimental measurements of sand-flux
Ning Huang +2 more
exaly +2 more sources
High-speed epitaxial lift-off for III-V-on-insulator transistors on Si substrates
2016 IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S), 2016Thin body III-V-on-insulator (III-V-OI) structure is a promising device structure for future node transistors in CMOS technology. Typically, a direct wafer bonding (DWB) is used to fabricate III-V-OI on a Si substrate [1–3]. Donor wafers were etched out [1, 2] or separated by hydrogen implantation [3].
SangHyeon Kim +5 more
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Nanotechnology, 2020
Abstract In this work, we present a fabrication procedure of metal nanomesh arrays with the newly developed nanoimprint resist mr-NIL212FC used in a bi-layer resist system for a lift-off process. We comparatively analyzed and evaluated nanomeshes fabricated with a freshly prepared h-PDMS/PDMS stamp and a stamp used 501 times ...
M J, Haslinger +6 more
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Abstract In this work, we present a fabrication procedure of metal nanomesh arrays with the newly developed nanoimprint resist mr-NIL212FC used in a bi-layer resist system for a lift-off process. We comparatively analyzed and evaluated nanomeshes fabricated with a freshly prepared h-PDMS/PDMS stamp and a stamp used 501 times ...
M J, Haslinger +6 more
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High-speed InP/InGaAs photodiode on sapphire substrate prepared by epitaxial lift-off
IEEE Transactions on Electron Devices, 1989Summary form only given. A lift-off technique for epitaxial layers with subsequent deposition on a different substrate was applied to InP/InGaAs devices, demonstrating the ability to combine long-wavelength optoelectronic devices with electronic components from different material systems, e.g. GaAs.
H. Schumacher +5 more
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Measurements of Drag Torque, Lift-Off Journal Speed, and Temperature in a Metal Mesh Foil Bearing
Journal of Engineering for Gas Turbines and Power, 2010Metal mesh foil bearings (MMFBs) are a promising low cost gas bearing technology for high performance oil-free microturbomachinery. Elimination of complex oil lubrication and sealing system by deploying MMFBs in rotorcraft gas turbine engines offers distinctive advantages such as reduced system weight, enhanced reliability at high rotational speeds and
Luis San Andrés +3 more
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Hydrofoils: Optimum Lift-Off Speed for Sailboats
Science, 1968For a hydrofoil sailboat there is a unique optimum lift-off speed. Before this speed is reached, if there are no parasitic vertical hydrofoil appendages, the submerged or partially submerged hydrofoils increase drag and degrade performance. As soon as this speed is reached and the hydrofoils are fully and promptly deployed, the performance of a ...
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SID Symposium Digest of Technical Papers, 2020
In our previous work, we proposed and evaluated processes and equipment to facilitate the mass production of micro LED (light emitting diode) displays. The new technologies include LLO (laser lift off), mass‐transfer, color conversion and backplane with micro Si chip. We quantitatively evaluated them and report results.
Koichi Kajiyama +7 more
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In our previous work, we proposed and evaluated processes and equipment to facilitate the mass production of micro LED (light emitting diode) displays. The new technologies include LLO (laser lift off), mass‐transfer, color conversion and backplane with micro Si chip. We quantitatively evaluated them and report results.
Koichi Kajiyama +7 more
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High‐Speed GaAs Epitaxial Lift‐Off and Bonding with High Alignment Accuracy Using a Sapphire Plate
Journal of The Electrochemical Society, 1999We report more than one order of magnitude (~18 times) enhancement in the AlAs etching rate in a GaAs epitaxial lift‐off technique compared with that at 0°C reported previously. This has been achieved by optimizing various physical parameters such as pressure and temperature, and by adding a surfactant and antifoaming agent to the HF solution.
Y. Sasaki +6 more
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