Substrate Transfer Routing With Relay Modules for Higher Throughput
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing substrate processing apparatuses face challenges in achieving high throughput during substrate transfer and processing among multiple processing modules.
Innovation Solution
A substrate processing apparatus with a shared transfer mechanism and a determination unit that optimizes substrate transfer by determining the transfer destination based on the transfer status of substrates in different sections, ensuring efficient loading and unloading through separate mechanisms and minimizing waiting times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a common transfer mechanism is used for loading and unloading substrates from processing modules, then device complexity is reduced, but throughput is limited due to sequential operations
Solution Approach 1:
The transfer path is divided into multiple sections with different transfer mechanisms. The first section uses a first transfer mechanism for substrates needing immediate processing, while the second section uses a second transfer mechanism for substrates that can wait. This segmentation allows parallel transfer operations, increasing throughput without requiring a completely complex unified system.
Solution Approach 2:
The system dynamically selects which transfer mechanism to use based on real-time substrate processing status. The determination unit monitors whether processing modules are ready to receive substrates and routes substrates accordingly - using the first mechanism when processing modules are available, and the second mechanism when they are not. This dynamic adaptation maximizes throughput while managing complexity.
2Device complexity
If substrates are transferred sequentially through a single transfer path, then device complexity is minimized, but waiting time increases reducing productivity
Solution Approach 1:
The transfer path is segmented into multiple independent sections, each capable of transferring substrates simultaneously. This allows substrates to be routed through different paths based on their destination and processing status, eliminating sequential bottlenecks and reducing waiting time without creating a complex mesh network.
Solution Approach 2:
Relay modules serve as intermediaries between the first and second transfer mechanisms. Substrates can be temporarily held at relay modules while waiting for processing modules to become available, allowing the transfer mechanisms to operate continuously without idle waiting time. The relay modules mediate between different transfer paths, smoothing out timing differences.
3Speed
If priority is given to immediate transfer operations, then substrate processing speed is improved, but other transfer operations may be delayed
Solution Approach 1:
The system implements dynamic priority management where the determination unit continuously monitors the status of processing modules and adjusts transfer routing in real-time. When processing modules are ready, substrates are immediately transferred through the first mechanism at high speed. When modules are busy, substrates are routed through the second mechanism, preventing delays and maintaining overall throughput. This dynamic adjustment resolves the contradiction between speed and throughput.
Solution Approach 2:
The system changes the operational parameters of different transfer mechanisms based on real-time conditions. The first transfer mechanism operates at high speed for immediate transfers, while the second mechanism operates at adjusted speeds for substrates that can wait. This parameter adjustment allows priority operations to proceed quickly while maintaining overall system productivity through coordinated slower operations.
Data Source
AI summary
A substrate processing apparatus includes: a group of modules including a plurality of processing modules that process a substrate and a plurality of relay modules on which the substrates are disposed to be transferred among the plurality of processing modules; a plurality of transfer mechanisms that transfer the substrates in an assigned section of a transfer path; a shared transfer mechanism shared for transfer in a first section and a second section separated from each other in the transfer path of the substrate; and a determination unit that determines a transfer destination of the substrates by the shared transfer mechanism between the first relay module and the second relay module based on a transfer status of the substrate in each section.