Patent ID: 8003023
Filing Date: 2011-08-23
Classification: H01L

Abstract:
1. A method for fabricating a master mold comprising: stacking a material layer for a predetermined pattern on a main body, wherein the material layer for the predetermined pattern, is formed of one of metal, silicon dioxide (SiO patterning the material layer by a photolithography process to form a pattern on the main body; applying a hydrophobic group onto surfaces of the main body and the pattern by a plasma process to form a master mold, wherein the master mold comprises the main body, the pattern on the main body and the hydrophobic group on the surfaces of the main body and the pattern, and wherein the plasma process is performed using a gas containing a fluorine element, and wherein the hydrophobic group is applied onto the surface of the master mold by the plasma process so that an adhesive force between the master mold and a soft mold is weakened to easily perform the separation therebetween; depositing and hardening a pre-polymer on a surface of the master mold which the plasma process is treated, wherein the pre-polymer is formed of one of polydimethylsiloxane (PDMS), polyurethane, and polyimide; and separating the pre-polymer from the master mold to form the soft mold, wherein the pattern is transferred onto the surface of the soft mold.