Water-assisted femtosecond laser drilling of 4H-SiC to eliminate cracks and surface material shedding
W Wang, H Song, K Liao, X Mei - The International Journal of Advanced …, 2021 - Springer
This study adopted femtosecond laser with a wavelength of 515 nm to drill high-aspect-ratio
micro through holes on a 500-μm thickness single-crystal SI-type 4H-SiC wafer. Firstly …
micro through holes on a 500-μm thickness single-crystal SI-type 4H-SiC wafer. Firstly …
Mechanism of nanosecond laser drilling process of 4H-SiC for through substrate vias
Role of optical parameters on nanosecond laser drilling of 4H-SiC was experimentally
studied. Using ns pulsed Nd: YAG laser, parametric studies on effects of wavelength (1064 …
studied. Using ns pulsed Nd: YAG laser, parametric studies on effects of wavelength (1064 …
Effect of machining parameter on femtosecond laser drilling processing on SiC/SiC composites
Y Liu, R Zhang, W Li, J Wang, X Yang, L Cheng… - … International Journal of …, 2018 - Springer
Due to the unique properties of femtosecond laser in precision machining, femtosecond
laser was utilized for irradiation on SiC/SiC composites. Effects of different processing …
laser was utilized for irradiation on SiC/SiC composites. Effects of different processing …
[PDF][PDF] Machining millimeter-scale deep holes in SiCf/SiC material using femtosecond laser filamentation effect
J Zhao, WJ Wang, RJ Wang, JL Cui - Mater. Sci. Adv. Compos. Mater, 2018 - core.ac.uk
A 3.5 mm thick SiCf/SiC material was drilled in air environment using a femtosecond laser
filament effect. The surface morphology of deep micropores was observed by scanning …
filament effect. The surface morphology of deep micropores was observed by scanning …
Effect of energy density and feeding speed on micro-holes drilling in SiC/SiC composites by picosecond laser
Y Liu, J Wang, W Li, C Wang, Q Zhang, X Yang… - … International Journal of …, 2016 - Springer
Picosecond laser machining is an important modern technology for materials with high
hardness. In this paper, micro-holes with several hundred micrometer diameter were drilled …
hardness. In this paper, micro-holes with several hundred micrometer diameter were drilled …
Experimental investigation on ablation of 4H-SiC by infrared femtosecond laser
L Wang, Y Zhao, Y Yang, M Zhang, Y Zhao - Micromachines, 2022 - mdpi.com
Femtosecond laser ablation has become one of the important structural processing methods
for the third-generation semiconductor material, silicon carbide (SiC), and it is gradually …
for the third-generation semiconductor material, silicon carbide (SiC), and it is gradually …
Investigation on femtosecond laser combined with dynamic wet etching machining of SiC/SiC
Abstract SiC/SiC (Silicon Carbide fiber reinforced Silicon Carbide) is widely used in
aerospace and gas turbine fields due to its excellent resistance to high temperature …
aerospace and gas turbine fields due to its excellent resistance to high temperature …
Molecular dynamics study on femtosecond laser aided machining of monocrystalline silicon carbide
To solve SiC machining processes problems such as low processing efficiency,
surface/subsurface damage, and machining tool wear, a femtosecond-laser-aided …
surface/subsurface damage, and machining tool wear, a femtosecond-laser-aided …
High-speed observation of pulse energy and pulse width dependences of damage generation in SiC during ultrashort pulse laser drilling
Ultrashort pulse laser processing is a potential method for microfabricating silicon carbide
(SiC). However, it is difficult to precisely process SiC using this method because numerous …
(SiC). However, it is difficult to precisely process SiC using this method because numerous …
Surface integrity of drilling Ti-6Al-4V micro-holes using the ultrashort pulse laser with different three-dimensional paths planning
S Ai, G Xiao, Z Deng, Y Huang, S Liu, O Lin… - Journal of Manufacturing …, 2023 - Elsevier
The improvement of aero-engine performance posed a challenge to the heat dissipation
ability of blades, resulting in a substantial increase in the demand for micron-sized (≤ 1 mm) …
ability of blades, resulting in a substantial increase in the demand for micron-sized (≤ 1 mm) …