Substrate Container Door Limiter for Vibration and ESD Protection
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Solution Overview
Problem
Conventional substrate containers face issues such as mechanical interference, dust contamination, substrate damage from vibration and friction, and electrostatic interference due to the design of limiters and support members, leading to operation anomalies and substrate impairment.
Innovation Solution
The protection device for a substrate container includes a limiter with a movable piece and an elastic element, a support member with a rigid and elastic connecting component, and an antistatic element to prevent interference, secure substrates, and provide electrostatic protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the limiter protrudes from the inner surface of the door to push against the substrate, then substrate displacement is prevented, but mechanical interference with the mechanical arm occurs during door operation
Solution Approach 1:
The limiter is designed as a movable component that can dynamically adjust its position between protruding (to secure substrate) and retracted (to avoid interference) states, resolving the contradiction between substrate security and door operation ease
2Quantity of substance
If the support member is made heavy to support multiple trays, then substrate carrying capacity is improved, but the support member may fall or generate gaps at connection points
Solution Approach 1:
The elastic connecting component acts as a counterbalancing mechanism that compensates for the weight of multiple trays, providing upward elastic force to prevent the support member from falling while maintaining the ability to carry multiple substrates
3Ease of operation
If the door is opened and closed frequently for substrate loading, then substrate accessibility is improved, but wear and dust contamination increase due to friction
Solution Approach 1:
The elastic connecting component serves as an intermediary between the support member and container body, absorbing friction and wear during door operations while preventing direct contact and dust generation between moving parts
4Quantity of substance
If conventional substrate containers are used, then basic substrate storage is provided, but electrostatic damage and functional impairment occur
Solution Approach 1:
The patent replaces the conventional mechanical-only substrate container system with an integrated system that incorporates electrostatic discharge protection mechanisms, substituting pure mechanical structures with ones that also address electrostatic hazards
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 device effectively prevents substrate displacement and vibration, reduces dust contamination and electrostatic damage, ensuring stable and safe transportation of substrates by minimizing mechanical interference and providing electrostatic discharge protection.
Implementation Method 1
an elastic element, which stores and releases elastic energy
Implementation Method 2
an antistatic element to prevent interference, secure substrates, and provide electrostatic protection
Data Source
AI summary
A protection device for a substrate container includes a container door and a limiter for pushing against and securing a substrate, a support member and an elastic connecting component for engaging and securing the container body, and an antistatic member having elasticity interference to provide an electrostatic dissipation path as electrostatic protection for the substrate. The protection device for a substrate container improves a protection effect of a substrate stored in the substrate container, and prevents hazards to a substrate caused by vibration, dust, and static electricity.