Transfer Unit for Semiconductor Rail Container Exchange
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Solution Overview
Problem
The existing semiconductor manufacturing line transfer systems face inefficiencies due to the need for vehicles to exchange containers between high-speed and low-speed rails, which requires a slope rail, leading to congestion and reduced manufacturing efficiency.
Innovation Solution
A transferring apparatus and method that includes a first rail, a second rail, and a transfer unit with an elevation space to transfer containers between vehicles traveling on different rails without the need for a connecting slope rail, using a controller to manage the support member, slider, and elevation member to efficiently move containers between vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a slope rail is provided to connect the upper rail and the lower rail for direct vehicle movement, then vehicle exchange between rails is enabled, but it consumes space within the semiconductor manufacturing line and causes congestion
Solution Approach 1:
The patent introduces a transfer unit as an intermediary device between the upper rail and lower rail. This transfer unit includes a transfer vehicle that picks up containers from vehicles on one rail and transfers them to vehicles on the other rail, eliminating the need for a physical slope rail connection. The intermediary transfer unit resolves the space consumption issue while enabling efficient vehicle exchange.
Solution Approach 2:
The patent segments the container transfer function into separate components: the upper rail system, the lower rail system, and the transfer unit. Instead of having vehicles directly move between rails via a slope rail, the transfer process is divided into discrete steps involving the transfer vehicle picking up containers and delivering them to target vehicles. This segmentation eliminates the need for continuous physical connection between rails.
2Productivity
If a slope rail is used to exchange containers between upper and lower rails, then container transfer is enabled, but congestion occurs in the slope rail section reducing manufacturing efficiency
Solution Approach 1:
The transfer unit acts as an intermediary that handles container exchanges independently of the main rail traffic flows. The transfer vehicle operates separately from the upper and lower rail vehicles, picking up containers from passing vehicles and delivering them to target vehicles without creating bottlenecks in the main transportation corridors. This eliminates congestion delays while maintaining transfer efficiency.
Solution Approach 2:
The patent enables continuous container transfer operations through the transfer unit, which can operate concurrently with vehicle movements on both rails. The transfer vehicle continuously picks up containers from incoming vehicles and delivers them to outgoing vehicles, maintaining uninterrupted transfer flow without creating congestion points that would cause time losses.
3Speed
If separate high-speed and low-speed rails are used to improve processing efficiency, then container transfer time is reduced, but the need for rail exchange infrastructure increases complexity
Solution Approach 1:
The transfer unit serves as a simplified intermediary mechanism that replaces the complex slope rail infrastructure. Instead of requiring vehicles to physically transition between different elevation levels via inclined rails, the transfer vehicle horizontally receives containers from one rail and delivers them to the other rail at the same level, dramatically simplifying the exchange infrastructure while maintaining high-speed transfer capability.
Solution Approach 2:
The patent changes the dimension of the transfer operation from vertical (slope rail connecting different levels) to horizontal (transfer unit operating at the same level). The transfer vehicle moves containers horizontally between rails without requiring vertical transitions, eliminating the need for complex elevation-changing infrastructure while preserving the speed benefits of separate high-speed and low-speed rails.
Data Source
AI summary
Provided is a transferring apparatus for transferring a container in which an article is accommodated. The transferring apparatus may include a first rail, a second rail located below the first rail, and a transfer unit located on the sides of the first rail and the second rail, and configured to transfer the container between a first vehicle traveling on the first rail and a second vehicle traveling on the second rail, in which the transfer unit may include a frame having an elevation space therein, and an elevation member for elevating the container between a first position transferring the first vehicle and the container and a second position transferring the second vehicle and the container, in the elevation space.