Semiconductor Gate/Barrier Assembly for Automatic Fall Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fall prevention devices for elevated workspaces in semiconductor processing systems are inadequate, posing a risk of injury during module installation and removal.
Innovation Solution
A gate/barrier assembly is provided, comprising a first post fixed to the system, a pivotable second post, a gate that overlaps the second post in a closed position, and a barrier that abuts the first post in a guard position, with a biasing member to automatically move the gate to the closed position, ensuring safety during module handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If safety railings and safety netting are positioned in and around elevated workspace, then fall prevention coverage is improved, but device complexity and space occupation increase
Solution Approach 1:
The fall prevention system is divided into modular components: a fixed post assembly, a movable gate assembly, and a barrier assembly. Each component can be independently installed, adjusted, and maintained. The gate assembly itself is segmented into a gate body, hinge mechanism, and latching mechanism, allowing for simplified installation and repair without requiring complete system replacement.
Solution Approach 2:
The gate assembly is designed to be movable rather than fixed, transitioning between open and closed positions to accommodate module installation/removal operations while maintaining fall prevention when closed. The barrier assembly can also be moved between a retracted position (allowing access) and an extended position (providing fall protection). This dynamic design reduces the need for permanent structural modifications.
2Reliability
If safety tie-offs are distributed within the elevated workspace, then fall protection capability is improved, but ease of operation is reduced due to additional safety procedures
Solution Approach 1:
The gate assembly incorporates a spring-loaded self-latching mechanism that automatically engages when the gate is closed, providing fall protection without requiring technician intervention. The system self-regulates by maintaining the gate in the closed position unless deliberately opened, eliminating the need for continuous human monitoring or additional safety procedures.
Solution Approach 2:
The fall prevention barriers (gate and barrier assemblies) are pre-positioned and ready to provide protection before any fall risk occurs. The gate is normally closed and latched, providing immediate protection as soon as the workspace is accessed, rather than requiring technicians to don harnesses or activate safety systems during operations.
3Ease of operation
If a gate is made pivotable to allow access, then ease of operation is improved, but reliability of fall prevention is reduced due to potential gaps
Solution Approach 1:
The hinge mechanism acts as an intermediary between the gate body and the post assembly, allowing controlled rotation while maintaining structural integrity. The latching mechanism serves as an intermediary that secures the gate in the closed position, preventing accidental opening while allowing deliberate access when needed. This intermediary system reconciles the conflicting requirements of accessibility and security.
Solution Approach 2:
The spring-loaded latching mechanism provides a cushioning force that ensures the gate remains firmly closed and latched, compensating for any potential gaps or misalignments. The spring tension maintains constant pressure on the latching surfaces, ensuring reliable engagement even with manufacturing tolerances or thermal expansion/contraction.
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 gate/barrier assembly effectively prevents falls by automatically moving to a closed position, reducing the risk of injury during module installation and removal in semiconductor processing systems.
Implementation Method 1
a biasing member arranged between the gate and the first post. The biasing member may urge the gate toward the closed position to automatically move the gate between the closed position and the open position
Data Source
AI summary
A gate/barrier assembly includes a first post, a second post, a gate, and a barrier. The first post is arranged to be fixedly supported by a semiconductor processing system. The second post extends in parallel with the first post and is arranged to be pivotably supported by the semiconductor processing system. The gate is pivotably supported by the first post and has a closed position where the gate overlaps the second post and an open position wherein is the gate is spaced apart from the second post. The barrier is fixedly supported by the second post, has guard and guide positions, is spaced apart from the first post in the guide position, and abuts the first post in the guard position. The gate overlaps the barrier when the gate is in the closed position and the barrier is in the guard position.