Gas Mixer Partition Layout for Reactive Substrate Processing
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Solution Overview
Problem
When two or more reactive process gases are supplied together for substrate processing, they can deteriorate the efficiency of the processing due to premature mixing before reaching the substrate.
Innovation Solution
A substrate processing apparatus with a gas mixer that includes division partition walls and guide columns to create turbulent flows, effectively mixing process gases before they are sprayed into the chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two or more reactive process gases are supplied together for substrate processing, then the substrate processing can be performed with multiple gases, but the processing efficiency deteriorates due to premature mixing and reaction before reaching the substrate
Solution Approach 1:
The gas supply system is divided into separate gas supply paths for different process gases, with each path maintaining independent flow control. Partition walls are introduced to physically segment the chamber interior, creating separate flow channels that prevent premature mixing while allowing multiple gases to reach the substrate simultaneously
Solution Approach 2:
An inert gas is introduced as an intermediary substance between reactive process gases. This inert gas acts as a buffer that prevents direct contact and premature reaction between reactive gases, while still allowing the process gases to reach the substrate for effective processing
2Ease of operation
If process gases are mixed in advance before supply, then the gas supply process is simplified, but the substrate processing efficiency deteriorates due to premature reaction
Solution Approach 1:
The gas supply system maintains separate supply paths for different process gases throughout the system, including separate flow control mechanisms and independent routing. This segmentation is maintained until the gases reach the chamber, where partition walls guide them to meet at the substrate without premature mixing in the supply lines
Solution Approach 2:
An inert gas is used as a mediator in the gas supply system, allowing multiple reactive gases to be supplied through the same general pathway without direct contact. The inert gas creates a protective atmosphere that prevents premature reactions while simplifying the supply infrastructure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus ensures efficient and effective mixing of process gases, enhancing the substrate processing efficiency by preventing premature reaction and optimizing gas distribution.
Implementation Method 1
A substrate processing apparatus with a gas mixer that includes division partition walls and guide columns to create turbulent flows, effectively mixing process gases before they are sprayed into the chamber
Data Source
AI summary
A substrate processing apparatus may include: a chamber; a support in the chamber and configured to support a substrate; and a gas mixer connected to the chamber and configured to spray a process gas into the chamber. The gas mixer may include: division partition walls spaced apart in a vertical direction; and mixing flow paths oriented in the vertical direction in the division partition walls.