Linear Substrate Transport Arm for Semiconductor Processing
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Solution Overview
Problem
Conventional substrate processing apparatuses have reached a dead end in terms of size reduction and throughput enhancement, as the handling rate of the transport apparatus limits the increase in processing capacity, making it difficult to reduce manufacturing costs and improve consumer demand for electronic devices.
Innovation Solution
A substrate processing apparatus with a transport chamber capable of a controlled atmosphere, featuring a transport vehicle with a jointed substrate transfer arm that allows for linear movement and multi-access movement, enabling efficient transfer between processing modules and holding modules, thereby decoupling throughput from handling capacity and allowing for increased processing capacity without increasing the apparatus size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional radial processing module arrangement is used, then the apparatus can process substrates, but the throughput is limited by the handling rate of the transport apparatus
Solution Approach 1:
The patent transitions from a radial arrangement to a linear Cartesian arrangement, adding a new dimensional organization to the processing modules. This linear configuration allows multiple modules to be arranged sequentially along a transport path, enabling higher throughput by allowing parallel processing operations without increasing the complexity of the transport apparatus itself.
Solution Approach 2:
The processing system is divided into discrete, modular processing modules that can be independently configured and operated. This segmentation allows the transport apparatus to simply move substrates between fixed points while the processing capacity is scaled by adding or removing modules, decoupling throughput from transport complexity.
2Productivity
If more processing modules are added to increase throughput, then processing capacity increases, but the apparatus size increases
Solution Approach 1:
By organizing modules in a linear Cartesian arrangement rather than radial, the patent achieves higher processing capacity within a more compact footprint. The linear configuration allows modules to be stacked or arranged in a space-efficient manner along the transport path, reducing the overall apparatus area required for a given throughput level.
3Productivity
If radial arrangement is used, then the apparatus structure is simple, but the throughput cannot be increased beyond the transport apparatus handling rate
Solution Approach 1:
The system is segmented into independent processing modules connected in a linear sequence, allowing each module to operate autonomously. This segmentation enables throughput scaling by simply adding modules to the linear array without complicating the transport apparatus, as the transport system only needs to handle substrate transfer between fixed module locations.
Data Source
AI summary
A semiconductor workpiece processing apparatus having a first chamber, a transport vehicle, and another chamber. The first chamber is capable of being isolated from an outside atmosphere. The transport vehicle is located in the first chamber and is movably supported from the first chamber for moving linearly relative to the first chamber. The transport vehicle includes a base, and an integral semiconductor workpiece transfer arm movably mounted to the base and capable of multi-access movement relative to the base. The other chamber is communicably connected to the first chamber via a closable opening of the first chamber. The opening is sized to allow the transport vehicle to transit between the first chamber and the other chamber through the opening.