Optical Spectrometer Analysis Technology of Laser Processing Apply to Touch Panel

• Main Authors: Ching Ming Chen, 陳晋銘
• Other Authors: Shern Feng Huang
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/54303257741063765680

碩士 === 中華科技大學 === 機電光工程研究所碩士班 === 101 === The study focus on laser optical absorption for the materials using on touch panel, including glass, or PET, and so on. The aged technology is wet processing for narrow line-width production, or screen printing processing for wild line-width production. But the wet processing is no good for pollution, and screen printing processing is not good for narrow board edge. So laser dry etching processing would be good for next generation technology, and it could have no pollution, also with narrow line-width characteristic. The experimental method is the use material spectrometer samples were Ag on PET, ITO on PET and ITO on Glass for materials analysis, analysis will be carried out for the sample material reflectivity and absorptivity test and post-test using the equation A% = 100 %-T%-R% absorption rate calculation results from the calculation of how much material that the wavelength of light absorption rate can have the best effect, and the analysis of the results for different samples to select a different laser wavelengths begin mine shot optimize processes. The results showed that Ag on PET material of the light wavelength 2700nm ~ 200nm and horses are well over 60% absorption rate, and the absorption of 500nm ~ 200nm optimal, so the material Ag on PET in the choice of the laser can be more selection. ITO on PET materials and materials ITO on Glass absorption of light in the ultraviolet best, can have 70% to 80% of the absorption effect, but when the light at 2500nm ~ 2700nm ITO on PET material of the absorption rate to be achieved 30% to 40%, so if the process requirements of different wavelength is 2500nm ~ 2700nm range can be selected.