Wafer Transfer Port Door Control for Faster Semiconductor Handling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The sealing door between the exposure machine and the TRACK machine often fails to open in time, causing delays and reducing wafer production speed and productivity in semiconductor manufacturing.
Innovation Solution
A wafer processing apparatus equipped with a detector, driver, and controller that automatically opens the connection port when the door panels are detected as closed, eliminating the need for manual intervention and preventing machine stoppages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual operation of door panels is used, then device complexity is reduced, but productivity decreases due to delays in opening the connection port
Solution Approach 1:
The door control system automatically detects the arrival of the TRACK machine and opens the connection port without manual intervention. The detector monitors the TRACK machine's position and triggers the driver to open the door panels autonomously, eliminating waiting time and improving wafer production speed while maintaining simple operation procedures
Solution Approach 2:
The detector provides real-time feedback on the TRACK machine's arrival status to the controller, which then activates the driver to open the connection port. This closed-loop control ensures the door opens at the precise moment needed, optimizing productivity without requiring complex manual coordination
2Productivity
If automatic door opening system is implemented, then productivity improves, but device complexity increases due to additional components
Solution Approach 1:
The detector is positioned to detect the TRACK machine's approach in advance, allowing the system to prepare for door opening before the machine arrives. This preliminary detection enables timely activation of the driver, ensuring the connection port is ready for immediate wafer transfer, thus improving productivity with minimal added complexity
Solution Approach 2:
The controller acts as an intermediary between the detector and the driver, coordinating the door opening action based on detector signals. This intermediary control simplifies the overall system architecture by using a centralized control unit rather than complex direct coupling between detection and actuation mechanisms
Data Source
AI summary
The present disclosure relates to a wafer processing apparatus and a wafer transfer method. The wafer processing apparatus includes: a first machine; a second machine, including a manipulator, the manipulator transfers a wafer to the machine through a connection port; the connection port is provided between the first machine and the second machine; door panels, provided on the first machine and used to close the connection port; a detector, for detecting a current position of the door panel; a driver, connected to the door panel, for driving the door panel to move to open or close the connection port; and a controller, connected to the detector, the driver and the manipulator, for controlling the door panel to move according to the current position of the door panel to open or close the connection port, and control the manipulator to transfer the wafer.