Mobile Stocker Relocation With Autonomous Fab Layout Navigation
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Solution Overview
Problem
Semiconductor fabrication facilities face challenges with the complex and time-consuming installation and relocation of stockers, which leads to downtime and reduced productivity due to the need for reconfiguration of interacting systems.
Innovation Solution
A mobile stocker system that can be easily installed and relocated, equipped with a navigation system to learn and adapt to the facility layout, autonomously move, and communicate with material control systems to quickly assign location identifiers, enabling flexible support of changes in demand and production capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed stocker system is installed in a semiconductor fabrication facility, then it provides stable storage and transport carrier management, but it requires complex and time-consuming relocation procedures when facility layout changes are needed
Solution Approach 1:
The stocker system is designed with mobile capabilities, transitioning from a fixed installation to a dynamically relocatable system. The stocker can be moved to different locations within the fabrication facility as needed, allowing the system to adapt to changing production requirements without requiring complete system reconfiguration or extensive downtime.
2Adaptability or versatility
If a mobile stocker system is implemented, then relocation flexibility is improved, but system complexity increases due to navigation and autonomous movement requirements
Solution Approach 1:
The stocker system is equipped with autonomous navigation capabilities that enable it to independently determine its position, plan routes, and navigate to target locations without requiring complex external control systems. This self-service approach to navigation reduces the overall system complexity by integrating the navigation functions directly into the stocker unit itself.
3Reliability
If traditional stocker installation procedures are used, then system stability is maintained, but installation and relocation processes are complex and time-consuming
Solution Approach 1:
The stocker system incorporates pre-configured interfaces and standardized connection protocols that are established before installation. This preliminary preparation allows for quick and simple installation and relocation processes, as the system is already configured to interface with standard facility infrastructure, eliminating the need for complex on-site configuration work.
4Productivity
If the stocker is relocated to support dynamic production changes, then productivity is increased, but interface reconfiguration with transport systems is required
Solution Approach 1:
The stocker system employs universal interfaces and standardized communication protocols that are compatible with multiple transport systems and facility configurations. This multi-functionality allows the stocker to be relocated and immediately integrated with different transport systems without requiring complex custom interface reconfiguration, thereby maintaining productivity while enabling flexible relocation.
Data Source
AI summary
A mobile stocker described herein is configured to be easily installed and relocated to various locations in a semiconductor fabrication facility. The mobile stocker is capable of being programmed with, and/or autonomously learning, the layout of a semiconductor fabrication facility, and automatically relocating to a new location based on the layout using a navigation system. Accordingly, the mobile stocker is capable of being flexibly relocated in the semiconductor fabrication facility to dynamically support changes in demand and production capacity. Moreover, the capability to quickly assign a location identifier to the mobile stocker and to automatically interface with transport systems in the semiconductor fabrication facility reduces downtime of the mobile stocker, which increases productivity in the semiconductor fabrication facility.