Method for fabricating mold core
AssigneeHon Hai Precision Industry Co., Ltd.
InventorSei-Ping Louh
Life of this patent
Estimating the term…
Abstract
An exemplary method for fabricating a mold core includes the following steps. First, a substrate is provided. Second, a photo resist layer is formed on the substrate, the photo resist layer has a top surface. Third, the photo resist layer is etched using a direct writing process to form the top surface thereof into a substantially aspherical stepped surface. Lastly, the photo resist layer is softened using a reflow process to transform the substantially aspherical stepped surface into a substantially aspherical smooth molding surface. Thereby, a mold core having the substantially aspherical smooth molding surface is obtained.
Claims16
A method for fabricating a mold core comprising:
- providing a substrate;
- forming a photo resist layer on the substrate, the photo resist layer having a top surface;
- etching the photo resist layer using a direct writing process to form the top surface thereof into a substantially aspherical stepped surface;
- and
- softening the photo resist layer using a reflow process to transform the substantially aspherical stepped surface into a substantially aspherical smooth molding surface, thereby obtaining a mold core having the substantially aspherical smooth molding surface.
Dependencies are inferred from the claim text.