Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Joonghan Shin"'
Publikováno v:
Journal of Materials Research and Technology, Vol 18, Iss , Pp 2910-2921 (2022)
The power distribution of laser beam is an important parameter in laser welding in that it is closely related to the state of melt pool. In this study, a dual-mode fiber laser providing various beam power distributions by individual adjustments of th
Externí odkaz:
https://doaj.org/article/ec1aab66c1cd48f7a4f041076cd918a1
Autor:
Donghyeok Choi, Joonghan Shin
Publikováno v:
Results in Physics, Vol 38, Iss , Pp 105632- (2022)
Activation annealing of phosphorus (P)-doped Si was performed with a red–greenblue (RGB) laser to evaluate its potential for the uniform heating of patterned semiconductor devices. Various characteristics of P-doped Si annealed by an RGB laser were
Externí odkaz:
https://doaj.org/article/31f795e62171426a9be8aba27c452178
Publikováno v:
Micromachines, Vol 13, Iss 3, p 356 (2022)
Electrodialysis using anion-exchange membranes (AEMs) and cation-exchange membranes (CEMs) has been widely used for water desalination and the management of various ionic species. During commercial electrodialysis, the available area of an ion-exchan
Externí odkaz:
https://doaj.org/article/97c10cbd9c344d34ab20665efa1bf874
Autor:
Donghyeok Choi, Joonghan Shin
Publikováno v:
Applied Sciences, Vol 11, Iss 22, p 10748 (2021)
Laser thermal annealing (LTA) has played an important role in the fabrication of scaled semiconductor devices by reducing the heat budget of the dopant activation process. During the laser annealing of entire wafer areas, the beam scanning pattern an
Externí odkaz:
https://doaj.org/article/5b5d3dcaab2a441385b4956202fd6e75
Autor:
Joonghan Shin, Kimoon Nam
Publikováno v:
Applied Sciences, Vol 10, Iss 3, p 987 (2020)
This study reports the laser grooving of glass. In this study, an ultraviolet (UV) nanosecond laser is used to produce grooves in soda lime glass by varying laser power, scan speed, pulse repetition rate, and number of scans. The threshold power dens
Externí odkaz:
https://doaj.org/article/f5c155ebf7b44783be9ec63546673a7e
Publikováno v:
Applied Sciences, Vol 9, Iss 21, p 4575 (2019)
In this study, the self-piercing rivet (SPR) joining of vibration-damping steel and aluminum alloy (Al5052-H32) is successfully carried out, for the first time to our knowledge, and the effects of die type and joint configuration on the mechanical pe
Externí odkaz:
https://doaj.org/article/c124bfb209e74cc1a339071ed2bfd928
Autor:
Sajid Ali, Joonghan Shin
Publikováno v:
Materials; Volume 15; Issue 21; Pages: 7463
With advancements in the automotive industry, the demand for electric vehicles (EVs) has remarkably increased in recent years. However, the EV battery, which is a vital part of the EV, poses certain challenges that limit the performance of the EVs. T
Autor:
Joonghan Shin, SeungGu Kang
Publikováno v:
Journal of Manufacturing Processes. 66:387-396
In laser welding, the spatial beam intensity profile of the laser beam is an important parameter as it has a considerable effect on the temperature distribution and cooling rate of the melt pool, which determine the weld properties. In this study, a
Autor:
Yeong-Il Son, Joonghan Shin
Publikováno v:
Materials; Volume 15; Issue 12; Pages: 4201
Laser melt annealing of amorphous silicon (a-Si) and subsequent recrystallization of a-Si are essential processes for successfully implementing vertical NAND (V-NAND) flash memory devices developed based on the cell-over-periphery (COP) structure. Th
Autor:
Donghyeok Choi, Joonghan Shin
Publikováno v:
Journal of Welding and Joining. 38:502-507