Soon-dong LEE, Ji-Hoon LEE, Bing CHEN, et al. Role of BCl3 gas in Ti/Al/Ti dry etching process[J]. Chinese journal of liquid crystals and displays, 2019, 34(9): 857-861.
DOI:
Soon-dong LEE, Ji-Hoon LEE, Bing CHEN, et al. Role of BCl3 gas in Ti/Al/Ti dry etching process[J]. Chinese journal of liquid crystals and displays, 2019, 34(9): 857-861. DOI: 10.3788/YJYXS20193409.0857.
the thickness of Ti/Al/Ti materials becomes thicker and the wiring becomes narrower and narrower. At present
the conventional design of LTPS display technology is to use inorganic film on Ti/Al/Ti substrates. In the new design of flexible OLED display technology
Ti/Al/Ti substrates are gradually using organic film. The challenge of Ti/Al/Ti dry etching process is becoming more and more serious. In this paper
the effect of BCl
3
gas on the side morphology of Ti/Al/Ti and the etching rate of photo resist in conventional Ti/Al/Ti dry etching process is studied. With the increase of BCl
3
gas flow rate
the thickness of Ti/Al/Ti side protective film is thinner and thinner
and the etching rate of photo resist is smaller and smaller. Based on the research and analysis
it is easy to cope with the new process of dry etching Ti/Al/Ti substrates as organic films.
SONG Y P, GUO X, AI W W, et al . Study on the ICP etching regularity of GaN-Based LED with Cl 2 /BCl 3 [J]. Micronanoelectronic Technology , 2006, 43(3): 125-129. (in Chinese)
CHEN L, KANG Y, ZHU L Y, et al . Study of ICP Etching of AlGaN with Cl 2 /Ar/BCl 3 [C]// Beijing: National Joint Organizing Committee of Academic Group of Sensors and Sensors, 2007. (in Chinese)
LIY F, LI X L, MA Y J, et al . Effect of ICP etching on the photoresist mask and the sidewall of the etching figure[J]. Semiconductor Optoelectronics , 2018, 39(2): 216-220. (in Chinese)
JIANG X H, ZHANG J X, WANG L, et al . ITO etching in FFS structure with resin material[J]. Chinese Journal of Liquid Crystals and Displays , 2013, 28(2): 194-198. (in Chinese)