Rail Cleaning Device With Rotating Suction for Substrate Transfer
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Solution Overview
Problem
Contaminants are generated in the rail unit of a ceiling transport device due to friction between the traveling unit and the rail unit during substrate transfer processes in clean rooms.
Innovation Solution
A cleaning device for a substrate transfer device that includes a traveling unit, a rail unit, and a rinsing unit with a suction part that rotates about a suction nozzle, allowing simultaneous contact and detachment with the rail structure to effectively remove contaminants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the traveling unit moves along the rail to transfer substrates, then substrate transfer productivity is improved, but contaminants are generated due to friction between the traveling unit and rail unit
Solution Approach 1:
The harmful contaminants generated by friction are extracted and removed from the rail unit using a suction part that collects and evacuates particles, separating the cleaning function from the substrate transfer function to maintain cleanliness without affecting productivity
Solution Approach 2:
A suction part is introduced as an intermediary component between the traveling unit and rail unit to capture contaminants at their source, preventing them from spreading while allowing the friction-based transfer mechanism to continue operating
2Productivity
If the suction part rotates simultaneously with contact to the rail structure, then cleaning efficiency is improved, but device complexity increases
Solution Approach 1:
The suction part is merged with the traveling unit structure, combining the substrate transfer function and contaminant removal function into a single integrated system, reducing overall device complexity while maintaining cleaning efficiency
Solution Approach 2:
The suction part is designed to rotate dynamically in synchronization with its contact with the rail structure, adapting its rotation to the motion conditions to maximize cleaning efficiency without requiring complex independent drive mechanisms
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables efficient and continuous removal of contaminants from the rail unit without interrupting the substrate transfer process, enhancing cleaning efficiency and maintaining cleanliness in clean rooms.
Implementation Method 1
a rinsing unit including a suction part. The suction part is disposed on the rail and is configured to rotate about a suction nozzle
Implementation Method 2
The suction part is configured to rotate in response to receiving an elastic force from an elastic member
Data Source
AI summary
A cleaning device for a substrate transfer device comprises a traveling unit configured to travel along a rail having first and second areas, a rail unit including the rail and a rail structure disposed on the rail, and a rinsing unit including a suction part disposed on the rail and that rotates about a suction nozzle. When the rinsing unit is placed in contact with the rail structure, the suction part rotates about the suction nozzle.