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http://dx.doi.org/10.4218/etrij.13.1912.0018

Preliminary Works of Contact via Formation of LCD Backplanes Using Silver Printing  

Yang, Yong Suk (Components & Materials Research Laboratory, ETRI)
You, In-Kyu (Components & Materials Research Laboratory, ETRI)
Han, Hyun (Division of Advanced Materials, Solar Energy Materials Research Group, Korea Research Institute of Chemical Technology)
Koo, Jae Bon (Components & Materials Research Laboratory, ETRI)
Lim, Sang Chul (Components & Materials Research Laboratory, ETRI)
Jung, Soon-Won (Components & Materials Research Laboratory, ETRI)
Na, Bock Soon (Components & Materials Research Laboratory, ETRI)
Kim, Hye-Min (Components & Materials Research Laboratory, ETRI, Energy Application Technology Research Team, Korea Atomic Energy Research Institute)
Kim, Minseok (Components & Materials Research Laboratory, ETRI, School of Electrical Engineering, Korea University)
Moon, Seok-Hwan (Components & Materials Research Laboratory, ETRI)
Publication Information
ETRI Journal / v.35, no.4, 2013 , pp. 571-577 More about this Journal
Abstract
The fabrication of a thin-film transistor backplane and a liquid-crystal display using printing processes can eliminate the need for photolithography and offers the potential to reduce the manufacturing costs. In this study, we prepare contact via structures through a poly(methyl methacrylate) polymer insulator layer using inkjet printing. When droplets of silver ink composed of a polymer solvent are placed onto the polymer insulator and annealed at high temperatures, the silver ink penetrates the interior of the polymer and generates conducting paths between the top and bottom metal lines through the partial dissolution and swelling of the polymer. The electrical property of various contact via-hole interconnections is investigated using a semiconductor characterization system.
Keywords
Organic thin-film transistors; inkjet printing; contact via; silver ink; conductivity; penetration; LCD;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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