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This article describes a fine line/space fabrication process on flexible polyimide film using laser direct writing method by photothermal effect of silver nanoparticles. Since the AgNPs have a strong optical absorption at 405 nm, a UV laser (405 nm, 60 mW) is used to trigger AgNPs to convert light into heat due to photothermal effect of nanoparticles. After UV laser beam irradiating on the AgNPs thin...
Selective removal of the silicon nitride dielectric layer has been demonstrated even using nanosecond range laser pulses, through carefully controlling the energy density of laser pulses. It has been found that, a laser pulse with a peak energy density of 4.3 J/cm2 or lower can remove the nitride layer without altering the underlying silicon while a pulse with a peak energy density of 4.8 J/cm2 or...
The purpose of this study is to develop a dry process for minute wiring or interconnections without any wet process such as chemical etching and electroplating. The process is based on the use of metal nanoparticles and their metallization by laser sintering, which will bring a desktop manufacturing of electronic circuits in view. The present paper investigates the influence of wavelength on laser...
We demonstrate SERS enhancement factor of order of 108 from Rhodamine-6G submonolayers on Ag island films treated by focused laser beam to create specific spatial particle size distribution predicted in Li-Stockman-Bergman model.
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