Automated High-Pressure Gas Barrel Replacement

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Solution Overview

Problem

Conventional high-pressure gas barrel replacement in semiconductor fabrication facilities is manual, leading to potential human errors, gas leaks, and safety hazards due to the need for workers to manually disconnect and reconnect gas barrels.

Innovation Solution

The implementation of a method using a pair of lifts and a control unit to automatically switch and replace high-pressure gas barrels by loading them onto a cabinet lift, connecting a new gas barrel to a connector holder, and unloading the old one, thereby automating the replacement process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual replacement of high-pressure gas barrels is performed, then workers can directly handle and replace gas barrels, but human errors occur leading to gas leaks and safety hazards

Engineering Contradiction:

ImprovesafetyVSAvoidautomation level

Core Design Contradiction:

ReliabilityVSExtent of automation

Solution Approach 1:

The system performs self-service through automated detection of gas barrel status, automatic switching of gas supply lines, and automated replacement operations, eliminating the need for manual worker intervention and thereby preventing human errors that lead to gas leaks and safety hazards

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical handling system with an automated control system that uses solenoid valves, automated switching mechanisms, and control units to manage gas barrel replacement, thereby eliminating direct human contact with high-pressure gas and improving safety

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If manual replacement of high-pressure gas barrels is performed, then workers can perform replacement tasks, but the replacement process is time-consuming and inefficient

Engineering Contradiction:

Improvereplacement speedVSAvoidreplacement time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by pre-positioning backup gas barrels, pre-configuring switching mechanisms, and maintaining ready-to-use gas supply lines, enabling rapid replacement without time-consuming manual preparation steps

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The automated system performs the entire replacement process autonomously including detection, switching, and physical replacement operations, eliminating the time required for manual worker intervention and significantly improving replacement speed

Inventive Principle:

Principle #25Self-service

3Reliability

If manual handling of gas barrels is performed, then workers can directly connect and disconnect barrels, but human errors lead to improper connection and gas leaks

Engineering Contradiction:

Improveconnection reliabilityVSAvoidoperational simplicity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces manual connection operations with automated mechanical switching systems controlled by solenoid valves and automated control units, ensuring consistent and reliable connections without human error while maintaining operational simplicity through centralized control

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system introduces intermediary components such as solenoid valves, automated switching mechanisms, and control units that mediate between the operator's command and the physical connection/disconnection of gas barrels, ensuring proper sequencing and preventing improper connections

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11619355B2Method for automatically replacing high-pressure gas barrels

Publication Date: 2023.04.04 AMT CO LTD(KR)

AI summary

Disclosed is a method for automatically replacing high-pressure gas barrels, in which when loading a high-pressure gas barrel is loaded on the lift of a cabinet so as to supply gas to the wafer production line in the semiconductor fabrication FAB process facility, at the time point of replacement of the high-pressure gas barrel, a used high-pressure gas barrel is separated from a connector holder and then a new high-pressure gas barrel is connected to the connector holder.