Vacuum Processing Apparatus Coolant Supply Layout
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Solution Overview
Problem
Existing vacuum processing apparatuses face inefficiencies in substrate processing due to inefficient layout of processing units, leading to increased installation area, reduced maintenance space, and complex installation and maintenance processes, which diminish productivity per installation area and increase manufacturing costs.
Innovation Solution
A vacuum processing apparatus with a plurality of vacuum processing vessels and a vacuum transfer vessel, featuring an atmospheric air transfer vessel with cassette tables and a position aligning machine, along with a coolant supply unit that adjusts fluid supply, is designed to optimize space usage and simplify maintenance by reducing the size of processing units and integrating coolant supply efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If processing units are laid out around the vacuum transfer chamber with adequate spacing for maintenance, then maintenance accessibility is improved, but the installation area and volume of the apparatus increase
Solution Approach 1:
The patent utilizes the vertical dimension by positioning the coolant supply unit in the lower portion of the atmosphere-side block, below the transfer chamber floor level. This allows maintenance workers to access coolant supply components from beneath the apparatus rather than requiring lateral clearance around the entire processing unit, effectively resolving the contradiction between maintenance accessibility and installation footprint.
Solution Approach 2:
The patent introduces a dedicated coolant supply unit as an intermediary component that consolidates all coolant distribution functions in one location. This mediator approach allows the main processing units to be compact while maintaining accessibility to coolant systems through the specialized supply unit designed for efficient service access.
2Reliability
If coolant supply units are provided within each processing unit, then cooling control is improved, but the size of each processing unit and overall apparatus area increase
Solution Approach 1:
The patent merges all coolant supply functions into a single centralized unit located in the atmosphere-side block, rather than distributing separate coolant systems in each processing unit. This consolidation maintains reliable cooling control through a dedicated specialized unit while significantly reducing the overall apparatus volume and allowing more compact arrangement of processing units.
Solution Approach 2:
The centralized coolant supply unit serves multiple processing units simultaneously, performing a universal cooling function for the entire apparatus. This multi-functional approach eliminates the need for redundant coolant systems in each individual processing unit, reducing total apparatus size while maintaining effective cooling control across all chambers.
3Productivity
If multiple vacuum processing apparatuses are arrayed along a passage to increase productivity, then productivity per facility is improved, but the maintenance space around each apparatus decreases
Solution Approach 1:
The patent repositions maintenance access points to the lower dimension of the apparatus by placing the coolant supply unit beneath the transfer chamber. This allows maintenance workers to service multiple apparatuses in a compact arrangement along a passage, as the vertical access point does not interfere with lateral passage space, thereby maintaining both high productivity and adequate maintenance space.
Data Source
AI summary
A vacuum processing apparatus includes vacuum processing vessels each having a processing chamber with a pressure-reduced interior space, a vacuum transfer vessel which is coupled to the vacuum vessels disposed therearound and which has a low-pressure interior space in which a to-be-processed workpiece is conveyed, an atmospheric air transfer vessel which is coupled to the front side of the vacuum transfer vessel and which includes on its front face side cassette tables mounting thereon a cassette with the workpiece received therein for conveying the workpiece in an interior space under an atmospheric pressure, a position-aligning machine disposed within the atmospheric air transfer vessel at one of right and left ends for adjusting a position of the workpiece, and an adjuster disposed between lower part of this machine and a floor face for adjusting the supply of a fluid being fed to the vacuum processing vessels.