Substrate Handling Robot Lift Track for Low-Downtime Maintenance

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Solution Overview

Problem

Conventional methods for removing and replacing wafer transfer robots in semiconductor processing systems require complex overhead gantries and pillars, leading to reduced system availability and increased operational complexity.

Innovation Solution

A robot lifting arrangement with a service platform and a robot lifting crane that uses tracks and a turntable to lift and transport substrate handling robots, minimizing overhead work and simplifying the removal process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If an overhead gantry is used to remove and replace wafer transfer robots, then the robot can be removed for maintenance, but the system availability is reduced and operational complexity increases

Engineering Contradiction:

Improverobot maintenance capabilityVSAvoidsystem downtime

Core Design Contradiction:

Ease of repairVSLoss of time

Solution Approach 1:

The service platform is pre-installed within the chamber before robot operation, with tracks and positioning mechanisms ready in advance. This eliminates the need for overhead gantry installation and reduces maintenance downtime by having the infrastructure prepared beforehand.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The service platform is divided into modular components including separate track sections, positioning mechanisms, and robot support structures. This segmentation allows for easier installation, maintenance, and reconfiguration compared to a monolithic overhead gantry system.

Inventive Principle:

Principle #1Segmentation

2Ease of repair

If an overhead gantry is installed for robot removal, then robot maintenance is enabled, but device complexity increases due to assembly and disassembly requirements

Engineering Contradiction:

Improverobot accessibilityVSAvoidgantry assembly complexity

Core Design Contradiction:

Ease of repairVSDevice complexity

Solution Approach 1:

The service platform uses modular track sections and independent positioning mechanisms that can be installed and maintained separately, reducing overall system complexity compared to a integrated overhead gantry structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The service platform is designed to be installed and operated within the chamber without requiring external overhead gantry structures, making the system self-contained and reducing operational complexity.

Inventive Principle:

Principle #25Self-service

3Ease of operation

If pillars are used to pull out the wafer transfer robot, then robot removal is achieved, but overhead work and system complexity increase

Engineering Contradiction:

Improverobot removal capabilityVSAvoidremoval mechanism complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The robot is extracted from the chamber using the service platform's track system and positioning mechanisms, eliminating the need for external pillar-based pulling mechanisms and reducing overall system complexity.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS20260070759A1Substrate handling robot lifting arrangement and method thereof

Publication Date: 2026.03.12 ASM IP HLDG BV

AI summary

A robot lifting arrangement is provided. The robot lifting arrangement includes a robot lifting crane that is configured to lift a substrate handling robot to an elevated position. The robot lifting arrangement also includes a track section that may extend from a chamber on the platform to an external area. Robot lifting crane may lift the robot from the chamber and transport it along the track to the external area for repair/maintenance or lift the robot from the external area and transport it along the track back to the chamber for installation into the chamber.