Substrate Transport Bridge Layout for Higher Processing Throughput
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Solution Overview
Problem
Existing substrate processing apparatuses face challenges in improving throughput efficiency.
Innovation Solution
The apparatus is designed with a configuration that includes a first front portion, a first rear portion, and a bridge portion, featuring transport mechanisms and distribution mechanisms to minimize transport operations, allowing for efficient substrate placement and retrieval across multiple processing units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If substrates are transported sequentially between processing units using conventional transport mechanisms, then substrate processing can be performed, but the number of transport operations increases and throughput decreases
Solution Approach 1:
The processing system is divided into multiple independent processing units (first through fourth processing units) arranged in parallel rows. Each processing unit can independently process substrates, allowing simultaneous processing of multiple substrates across different units, thereby reducing the total number of transport operations needed and improving throughput.
Solution Approach 2:
Processing units are arranged in a two-dimensional layout with front and rear rows, allowing substrates to be processed in parallel across different spatial positions. The transport mechanism moves substrates between rows and units, utilizing spatial dimensionality to enable concurrent processing and reduce sequential transport time.
2Productivity
If multiple processing units are added to increase processing capacity, then productivity improves, but device complexity increases
Solution Approach 1:
Multiple processing units are designed with similar structures and functions, each capable of performing the same substrate processing operations. This modular universality allows the system to increase processing capacity by adding identical units rather than designing complex heterogeneous systems, thereby improving productivity while controlling complexity through standardization.
Solution Approach 2:
A central transport mechanism serves as an intermediary between all processing units, coordinating substrate movement between the front and rear rows of processing units. This single intermediary transport system manages the complexity of coordinating multiple units rather than requiring separate transport mechanisms for each unit pair.
Data Source
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AI summary
The present invention relates to a substrate processing apparatus and a substrate processing method. A substrate processing apparatus includes a first front portion, a first rear portion, and a bridge portion that are arranged in this order in a front-rear direction. The first front portion includes a plurality of processing units. The first front portion includes a transport mechanism that transports a substrate to the processing units of the first front portion. The first rear portion includes a plurality of processing units. The first rear portion includes a transport mechanism that transports the substrate to the processing units of the first rear portion. The bridge portion includes the transport mechanism that places the substrate in the first front portion and the first rear portion.