Patent ID: 8379311
Filing Date: 2013-02-19
Classification: B29D,G02B,G03F

Abstract:
1. A method for fabricating a micro-lens, the method comprising; forming a first photo-resist film on a micro-lens formation area of a semiconductor substrate; forming the first photo-resist film as a first micro-lens using a first mask; forming a second photo-resist film adjacent to the first micro-lens on the micro-lens formation area; and then forming the second photo-resist film as a second micro-lens using a second mask, wherein the first mask is formed with a transmission area allowing for a transmission of light to the first photo-resist film and a blocking area for blocking light, wherein the blocking area is a gray dummy mask having gray dots, wherein a density of the gray dots is determined so that the transmission of the light through the gray dots to portions therebelow is substantially prevented.