Fabrication and evaluation of molding and bonding tools for Au micromirror formation

In order to fabricate Au micromirrors using a method of simultaneous molding and low-temperature Au-Au bonding, a fabrication method of molding and bonding tools using diamond blade dicing is investigated. Diamond blade dicing of synthetic quartz glass substrates produced smooth sidewall surfaces with root-mean-square roughness of 8 nm in the sample translation direction and that of 56 nm in the perpendicular to the translation direction. Using these fabricated tools, Au micromirrors were successfully formed at 150 °C.