Validation Wafer Charging Assembly for Sealed EFEM Maintenance
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Solution Overview
Problem
Conventional substrate processing systems require opening sealed environments for inspection and component replacement, leading to contamination, decreased yield, increased energy usage, and operator time, as well as lengthy re-commissioning processes.
Innovation Solution
An enclosure system with a charging assembly, including a charging coil and support structures, allows for inductive charging and sensor data collection without opening the sealed environment, enabling maintenance operations like process kit ring replacement without human intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the sealed environment is opened for inspection and component replacement, then maintenance operations can be performed, but contamination occurs and yield decreases
Solution Approach 1:
A robot arm serves as an intermediary tool to perform maintenance operations inside the sealed environment without human operators opening it. The robot can replace process kit rings and inspect components while the seal remains intact, thus preventing contamination while enabling maintenance.
Solution Approach 2:
Manual mechanical operations by human operators are replaced with automated robotic systems. The robot arm performs inspection and component replacement tasks that would otherwise require opening the sealed environment, allowing maintenance to occur without compromising the seal and preventing contamination.
2Ease of repair
If the sealed environment is opened for inspection and component replacement, then maintenance can be performed, but energy usage increases
Solution Approach 1:
The robot arm enables maintenance operations to be performed through the sealed environment's interface without breaking the seal. This allows the environmental control systems to remain active and maintain stable conditions, avoiding the energy-intensive process of sealing and re-commissioning that would occur if the environment were opened and then resealed.
Solution Approach 2:
The sealed environment can maintain its controlled conditions continuously while the robot performs maintenance operations. There is no interruption to the environmental control systems, and no need to cycle through sealing and re-commissioning processes, thereby maintaining continuous useful action without energy waste.
3Ease of repair
If the sealed environment is opened for inspection and component replacement, then maintenance operations can be performed, but operator time increases
Solution Approach 1:
The system performs maintenance operations autonomously using the robot arm, eliminating the need for human operators to physically open the sealed environment and perform manual maintenance tasks. The robot can inspect components, replace process kit rings, and complete maintenance cycles without human intervention, dramatically reducing operator time requirements.
Solution Approach 2:
Manual maintenance operations performed by human operators are replaced with automated robotic systems. The robot arm executes inspection and component replacement tasks that would otherwise require operators to open the sealed environment, perform tasks, and then re-seal it, thereby eliminating the time-consuming manual process while enabling maintenance to occur.
4Ease of repair
If the sealed environment is opened for inspection and component replacement, then maintenance can be performed, but re-commissioning time increases
Solution Approach 1:
The robot arm enables all maintenance operations to be completed through the sealed environment's interface without breaking the seal. Since the environment remains sealed throughout the maintenance process, there is no re-commissioning required, eliminating this time-consuming step entirely while still allowing full maintenance capability.
Solution Approach 2:
The sealed environment maintains its controlled conditions continuously during maintenance operations performed by the robot. There is no interruption to the environmental control systems and no need to cycle through sealing and re-commissioning processes, thereby maintaining continuous useful action and eliminating re-commissioning time.
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 enclosure system maintains a sealed environment, reducing contamination, energy consumption, and operator time, while enabling efficient maintenance by allowing charging and data collection within the system, thus improving yield and reducing re-commissioning time.
Implementation Method 1
a first charging coil. The enclosure system further includes one or more first support structures disposed within the interior volume under the first charging coil. The one or more first support structures are configured to support a first validation wafer within a threshold distance of the first charging coil to charge the first validation wafer via the charging assembly
Data Source
AI summary
A system includes an enclosure configured to couple to an equipment front end module (EFEM) of a substrate processing system, a charging assembly, and one or more support structures within the enclosure. The one or more support structures are configured to support a validation wafer in a charging position to charge the validation wafer via the charging assembly.