Method for fabricating mold core

Details Method for fabricating mold core Method for fabricating mold core

2009-01-15

2009-10-27

Young, Christopher G (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Electron beam imaging

C430S297000, C430S323000, C430S330000, C430S942000, C430S945000

Reexamination Certificate

active

07608387

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.

REFERENCES:
patent: 2004/0146807 (2004-07-01), Lee et al.
patent: 2005/0031998 (2005-02-01), Chen et al.
patent: 2005/0037290 (2005-02-01), Chen

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