Removable Process Chamber Design for Faster Plasma Tool Maintenance
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Solution Overview
Problem
Existing plasma processing apparatuses face challenges in maintaining the chamber that defines the processing space for substrates, as they lack easy and efficient methods for accessing and servicing the internal components.
Innovation Solution
The substrate processing apparatus is designed with a first chamber that includes a movable part and a separable second chamber. The second chamber can be fixed to the movable part, released, and transferred outside the first chamber for maintenance, facilitating easy access and servicing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the chamber is designed as a fixed integrated structure, then the structural integrity and stability are improved, but the ease of maintenance and accessibility for servicing internal components deteriorates
Solution Approach 1:
The chamber is divided into multiple separable sections: a first chamber portion and a second chamber portion. The second chamber portion can be detached from the first chamber portion and transferred outside for maintenance, while the first chamber portion remains in place. This segmentation allows maintenance personnel to access and service internal components without dismantling the entire chamber structure, thus resolving the contradiction between structural integrity and ease of maintenance.
Solution Approach 2:
The second chamber portion is extracted as a separate, removable component from the main chamber assembly. This extracted portion can be taken out through an opening in the sidewall of the first chamber portion and placed in a maintenance position outside the first chamber. This extraction enables easy access to internal components for cleaning, inspection, and repair while preserving the overall structural integrity of the remaining chamber.
2Stability of the object's composition
If the chamber is designed as a fixed integrated structure, then the structural stability is improved, but the productivity and downtime for maintenance increases
Solution Approach 1:
By segmenting the chamber into removable and fixed portions, maintenance activities can be performed on the second chamber portion independently without affecting the first chamber portion. This allows parallel operations where the first chamber can remain operational or be prepared for the next process while the second chamber portion is being maintained, thereby reducing overall maintenance downtime and improving productivity.
Solution Approach 2:
The chamber design transitions from a static, fixed structure to a dynamic, reconfigurable structure. The second chamber portion can be dynamically removed, transferred, and reinstalled as needed for maintenance. This dynamic capability enables flexible scheduling of maintenance activities and reduces idle time, thereby improving productivity without compromising structural stability when the chamber is assembled for operation.
3Ease of repair
If the second chamber is made separable and transportable, then the ease of maintenance is improved, but the device complexity increases
Solution Approach 1:
The chamber is segmented into modular sections with standardized interfaces for connection and disconnection. The second chamber portion is designed as a self-contained module that can be easily attached to and detached from the first chamber portion. This modular segmentation simplifies the overall device architecture by creating interchangeable units, making maintenance easier while managing complexity through standardization rather than increasing it.
Solution Approach 2:
The second chamber portion is designed to nest within or alongside the first chamber portion when assembled, creating a compact integrated structure during operation. The separable design allows the second chamber to be nested into position through the sidewall opening and secured, providing easy maintenance access while maintaining a relatively simple overall device structure without excessive complexity.
4Ease of repair
If the second chamber is made transportable outside the first chamber, then the ease of maintenance is improved, but the structural complexity increases
Solution Approach 1:
The second chamber portion is extracted as a removable module that can be taken out through an opening in the sidewall of the first chamber portion. This extracted module is designed with features that facilitate easy removal and reinstallation, such as alignment guides, connection interfaces, and securing mechanisms. The extraction design enables maintenance personnel to access the second chamber for servicing while keeping the structural complexity manageable through purposeful simplification of the removal and reinstallation processes.
Data Source
AI summary
A substrate processing apparatus is provided. The substrate processing apparatus comprise: a first chamber including a sidewall providing an opening, the first chamber further including a movable part movable upward and downward within the first chamber; a substrate support disposed within the first chamber; a second chamber disposed within the first chamber and defining, together with the substrate support, a processing space in which a substrate mounted on the substrate support is processed, the second chamber being separable from the first chamber and transportable between an inner space of the first chamber and the outside of the first chamber via the opening; a clamp releasably fixing the second chamber to the movable part extending above the second chamber; a release mechanism configured to release the fixing of the second chamber by the clamp; and a lift mechanism configured to move the movable part upward and downward.