Scratched mask repair apparatus and method
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD
- Publication Date
- 2014-08-06
Smart Images

Figure 1 
Figure 2 
Figure 3
Abstract
Description
technical field
[0001] The invention relates to the field of photolithography machine manufacturing, in particular to a scratch mask repairing device and method applicable to the interior of a photolithography machine. Background technique
[0002] In the LCD (liquid crystal display) manufacturing industry, the lithography process of the color filter requires the use of a lithography machine. Because the price of the proximity lithography machine is much lower than that of the step-and-scan lithography machine, it can also meet the requirements of the color filter. The various characteristics and specifications of the film, so the lithography process of the industry's color filters uses proximity lithography equipment. However, in the actual production process, due to the small gap between the mask of the proximity lithography machine and the product on the stage, generally below 300um, the mask is easily polluted and scratched. After contamination, it can be cleaned in the ...