초록 |
In recent years, materials for conductive printing have been attracted in industry of printed electronics such as display, mobile phone and solar cell. Silver paste has been used for fabrication of bezel pattern in touch panel due to high conductivity of silver (6.29*105 S/m). Photosensitive silver paste was fabricated by mixing micro-sized silver powders, polymeric binders, acrylic monomers, and photoinitiators in organic medium. Conductive silver line pattern with the width of sub 20 um was successfully prepared by optimized photolithography process using front or behind exposure. We were able to get a strong adhesion and high electrical conductivity up to 2.8×10-4 cm in the presence of triethylamine as an activating agent. |