Substrate Processing Apparatus Shared Sidewall Cooling
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Solution Overview
Problem
High-temperature operation of substrate processing apparatuses leads to adverse thermal effects on peripheral structures, compromising film quality and increasing thermal resistance, contamination risks, and reducing the performance of peripheral components.
Innovation Solution
The substrate processing apparatus incorporates a cooling channel in the shared sidewall between adjacent reaction chambers, maintaining a higher cooling efficiency for one sidewall compared to the other, allowing for effective thermal management while maintaining high temperatures within the reaction chambers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the reaction chamber is maintained at a high temperature for substrate processing, then the film quality is improved, but the peripheral structure of the reaction chamber is adversely affected due to thermal heating
Solution Approach 1:
The reaction chamber is divided into distinct thermal zones: the processing space is maintained at high temperature for quality film formation, while the transfer space and peripheral structures are thermally isolated and cooled to prevent thermal damage. This segmentation allows simultaneous high-temperature processing and low-temperature peripheral operation.
Solution Approach 2:
A thermally insulating structure is introduced as an intermediary between the high-temperature reaction chamber and the peripheral components. This insulator acts as a thermal barrier, preventing heat transfer to sensitive peripheral structures while allowing the reaction chamber to operate at elevated temperatures for improved film quality.
2Productivity
If the reaction chamber is maintained at a high temperature, then the substrate processing efficiency is improved, but the thermal resistance of the apparatus increases
Solution Approach 1:
Different parts of the apparatus are assigned different thermal characteristics: the reaction chamber maintains high temperature for efficient substrate processing, while the transfer space and peripheral structures are cooled or thermally isolated. This local differentiation of thermal properties allows high productivity in the processing zone without excessive thermal resistance affecting the entire apparatus.
3Manufacturing precision
If the reaction chamber is maintained at a high temperature, then the film-forming temperature is optimized, but the contamination risk increases
Solution Approach 1:
The apparatus is segmented into a high-temperature reaction zone for optimized film formation and a low-temperature transfer zone that minimizes contamination risks. The thermal insulation and separate temperature control of each zone prevent contamination while maintaining optimal film-forming conditions.
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
This configuration suppresses thermal effects on peripheral structures, maintains desired film-forming temperatures, and enhances the durability and performance of the apparatus by preventing overheating and contamination, thus improving film quality and operational stability.
Implementation Method 1
a cooling channel disposed in the first sidewall and the second sidewall
Data Source
AI summary
A substrate processing apparatus includes a first reaction chamber including: a first heating unit, a first processing space, and a first transfer space disposed under the first processing space, a second reaction chamber including: a second heating unit, a second processing space, and a second transfer space disposed under the second processing space; a first sidewall and a second sidewall defining the first reaction chamber and the second reaction chamber, wherein the first sidewall is shared by the first reaction chamber and the second reaction chamber, and a cooling channel disposed in the first sidewall and the second sidewall such that a cooling efficiency of the first sidewall is higher than that of the second sidewall, wherein the first reaction chamber and the second reaction chamber are disposed adjacent to each other with the first sidewall therebetween.