A5070250257- Metal and Thin Film Mechanics
- Adhesion, Friction, and Surface Interactions
- Gear and Bearing Dynamics Analysis
- Diamond and Carbon-based Materials Research
- Tribology and Lubrication Engineering
- Force Microscopy Techniques and Applications
- Advanced Surface Polishing Techniques
- Tribology and Wear Analysis
- Mechanical stress and fatigue analysis
- Lubricants and Their Additives
- Thin-Film Transistor Technologies
- ZnO doping and properties
- Nanofabrication and Lithography Techniques
- Surface Roughness and Optical Measurements
- Advanced materials and composites
- Mechanical Engineering and Vibrations Research
- Semiconductor materials and devices
- Metallic Glasses and Amorphous Alloys
- Metallurgy and Material Forming
- Metal Alloys Wear and Properties
- Advanced ceramic materials synthesis
- Advanced machining processes and optimization
- Silicon and Solar Cell Technologies
- Integrated Circuits and Semiconductor Failure Analysis
- Advancements in Semiconductor Devices and Circuit Design
National Cheng Kung University
2014-2025
National Institute for Laser Plasma and Radiation Physics
2021
Industrial Technology Research Institute
2021
Tunghai University
2010-2015
United Microelectronics (Taiwan)
2010-2014
United Microelectronics (United States)
2009-2014
Shu-Te University
2014
National Chung Hsing University
2007-2013
National Taipei University
2013
Institute of Astronomy and Astrophysics, Academia Sinica
2012
The multiple tooth meshes in planetary and epicyclic gears have varying numbers of teeth contact under operating speed, these all fluctuate at the same mesh frequency. All sun-planet shape periodicity variation meshes, but variations are, general, not phase with each other. is true for ring-planet meshes. Additionally, there a difference between This work sets out complete analytical description relationships. Mesh phasing has dramatic impact on static dynamic behavior gears. provides...
Planetary and epicyclic gears (Figure 1) rely on symmetry to achieve the large torque-weight ratios compactness that make them widely used in multiple applications. A desirable design objective is divide load equally such sun-planet tooth meshes carry nearly equal with same equality for ring-planet meshes. To this, one seeks have all be in-phase, is, each mesh nominally has identical conditions (i.e., number of teeth contact) at times similar Past research shown, however, differing phasing...
The theoretical analyses developed by Lin et al. 6 for the kinematics of ball screw mechanism have been partly adapted present study. In order to better understand sliding behavior arising at two contact areas, a bearing, while accounting elastic deformation, are modified through coordinate transformations prior their applications mechanism. influence differing parameters such as friction coefficient, normal force acting on ball, and angle ball-screw’s areas evaluated. results mechanical...
We demonstrate the thinnest ever reported Cu diffusion barrier, a 1-nm-thick graphene tri-layer. X-ray diffraction patterns and Raman spectra show that is thermally stable at up to 750 °C against diffusion. Transmission electron microscopy images there was no inter-diffusion in Cu/graphene/Si structure. analyses indicate may have degraded into nanocrystalline structure °C. At 800 °C, perfect carbon damaged, thus barrier failed. The results of this study suggest could be ultimate interconnect barrier.
The contact angle of a ball in bearing is conventionally assumed to be constant value the mechanism analysis; reality, this not true. This assumption made for purpose simplifying calculations, but real elastic deformation produced at position each due acting force varying with unable considered. study tries establish simple, three-dimensional expression different angles terms geometry surface inner and outer races. Simply using Newton method when deformations radial axial directions are...
In the present study, formulas for asperity contact loads (Fec and Fpc) corresponding to critical interferences at inception of elastoplastic fully plastic deformations are employed establish their relation with ratio these two (δec δpc). The interference δpc/δec can thus be expressed as a function load ratio, Fpc/Fec, whose value was obtained from experimental results metallic materials. δpc deformation determined. dimensionless analyses area, average pressure, in elastic regime reveals...
An analysis for hydrodynamic, non-Newtonian lubrication of misaligned journal bearings is given. The hydrodynamic load-carrying capacity partial arc lubricated by power-law, fluids calculated small valves the bearing aspect ratios. These results are compared with: numerical solutions to modified Reynolds equation, with Ocvirk’s experimental bearings, and other simulations. cavitation (i.e., film rupture) boundary location using Reynolds’ free-surface, condition.