Silver precipitation in glass by solid-state ion exchange and application to novel glass processing method

Abstract

The solid-state ion exchange method is one of the processing methods of glass materials. Silver precipitates are formed inside the glass when an additional voltage is applied to silver-doped surface by solid-state ion exchange. Since the silver precipitates have high electrical conductivity, they are being investigated for application as internal electrical conduction channels of glass. In this study, we tried to form miniature / multilayered wiring using silver precipitates. As a result, we succeeded in producing fine interconnections with a minimum line width of about 90 μm by using printed silver nano-ink as a silver ion source. In addition, we achieved double-layered wiring in glass by alternate doping of silver and sodium ions followed by additional voltage application.