Rotating Chuck Cleaning Fixture for Etch Tool Downtime Reduction
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Solution Overview
Problem
The edge parts of electrostatic chucks in semiconductor manufacturing devices require frequent cleaning and maintenance, leading to high downtime and increased equipment costs due to manual operation, which is inefficient and can cause damage to parts.
Innovation Solution
A fixture comprising a support mechanism and a cleaning mechanism with rotatable cleaning units that aligns and stabilizes the electrostatic chuck, ensuring uniform cleaning and reducing the risk of part damage, thereby reducing downtime and production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual cleaning operation is used, then the cleaning process can be performed, but the cleaning efficiency is low and part damage risk increases
Solution Approach 1:
The cleaning mechanism is designed to automatically clean the electrostatic chuck without manual intervention. The rotatable cleaning units rotate along with the electrostatic chuck to clean its surface,实现 self-service cleaning that improves efficiency and eliminates manual operation risks
Solution Approach 2:
The patent replaces manual mechanical cleaning operations with an automated cleaning mechanism. The cleaning units are driven by the rotation of the electrostatic chuck itself, substituting human mechanical action with an automated system that reduces part damage risk while maintaining cleaning effectiveness
2Reliability
If frequent cleaning and maintenance is performed manually, then the electrostatic chuck can be maintained, but equipment downtime increases
Solution Approach 1:
The cleaning mechanism enables continuous or frequent cleaning operations without requiring equipment shutdown. The cleaning units rotate along with the electrostatic chuck during normal operation or maintenance cycles, allowing maintenance to be performed efficiently and reducing the time the equipment is out of service
Solution Approach 2:
The electrostatic chuck cleans itself through the rotating cleaning units that move with its rotation. This self-service capability allows for frequent maintenance without requiring external manual intervention, reducing equipment downtime while maintaining high cleaning quality
3Ease of operation
If manual cleaning operation is used, then cleaning can be performed, but operator safety and part protection are compromised
Solution Approach 1:
The system performs self-service cleaning where the cleaning units are integrated with the electrostatic chuck and rotate together. This eliminates the need for manual cleaning operations, removing the risk of operator error while maintaining simple and effective cleaning functionality
Solution Approach 2:
The cleaning units act as intermediaries between the electrostatic chuck and the cleaning function. These specialized components are designed to interact safely with the chuck surface during rotation, providing protected and controlled cleaning that prevents direct manual contact and potential damage from improper operation
Data Source
AI summary
The present disclosure relates to a fixture, the fixture is a fixture for a semiconductor etching machine, and the fixture includes: a support mechanism, configured to be arranged on an outer base of an electrostatic chuck of the semiconductor etching machine; a cleaning mechanism, being rotatably arranged on the support mechanism; and at least one cleaning unit, being arranged on the cleaning mechanism.