Systems and methods for fabricating photo masks
First Claim
Patent Images
1. A method of fabricating a photo mask, comprising:
- generating mask layout data for defining a layout of patterns to be formed on a photo mask;
generating weak point data indicative of predicted weak points of a photo mask based on the mask layout data;
fabricating a photo mask based on the mask layout data; and
extracting critical point data indicative of information on weak points of the fabricated photo mask by analyzing an aerial image of the fabricated photo mask based on the weak point data.
1 Assignment
0 Petitions
Accused Products
Abstract
A system and method for fabricating a photo mask are provided. The method includes preparing weak point data based on mask layout data, fabricating a photo mask based on the mask layout data and extracting critical point data by analyzing the aerial image of the fabricated photo mask based on the weak point data.
17 Citations
20 Claims
-
1. A method of fabricating a photo mask, comprising:
-
generating mask layout data for defining a layout of patterns to be formed on a photo mask;
generating weak point data indicative of predicted weak points of a photo mask based on the mask layout data;
fabricating a photo mask based on the mask layout data; and
extracting critical point data indicative of information on weak points of the fabricated photo mask by analyzing an aerial image of the fabricated photo mask based on the weak point data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A photo mask fabrication system comprising:
-
at least one database for storing circuit layout data and mask layout data;
a modification apparatus for modifying the circuit layout data to generate the mask layout data;
a weak point analysis apparatus for generating weak point data based on the mask layout data; and
a critical point analysis apparatus for generating critical point data based on the weak point data. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification