Cassette Spring Size Adapter for Smaller Substrate Retention
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Solution Overview
Problem
Existing substrate containers are limited to accommodating specific cassette sizes, leading to the need for additional containers when smaller cassettes are used, and lack effective shock absorption and cleanliness features.
Innovation Solution
The introduction of size adapters that attach to cassette springs within substrate containers, allowing for the retention of smaller cassettes with vertical support, shock absorption, and ease of use, while being washable to maintain cleanliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cassette springs are used to retain cassettes in substrate containers, then vertical retention is achieved, but smaller cassettes cannot be retained due to size mismatch
Solution Approach 1:
A size adapter is introduced as an intermediary component between the cassette spring and the smaller cassette. The adapter attaches to the cassette spring's contact surface and provides a reduced contact surface that properly engages with smaller cassettes, enabling retention of multiple cassette sizes within the same substrate container.
2Adaptability or versatility
If larger substrate containers are used to accommodate smaller cassettes, then versatility is improved, but shock absorption and retention are compromised
Solution Approach 1:
The size adapter includes a compliant contact surface that deflects under shock loads to cushion the smaller cassette and its contents. This pre-configured compliance provides shock absorption before damage can occur, allowing larger containers to safely accommodate smaller cassettes.
3Adaptability or versatility
If complex retention mechanisms are added to support smaller cassettes, then retention capability is improved, but device complexity increases
Solution Approach 1:
The size adapter serves as a simple intermediary component that attaches to the existing cassette spring mechanism. Rather than redesigning the entire retention system, the adapter provides size adaptation through a straightforward attachment to the contact surface, minimizing structural complexity.
4Reliability
If size adapters are permanently attached to cassette springs, then retention reliability is improved, but ease of operation deteriorates due to spring replacement requirements
Solution Approach 1:
The size adapter is designed with dynamic attachment and detachment capabilities, allowing it to be easily installed on and removed from the cassette spring. This reversible connection maintains retention reliability during normal operation while enabling easy adaptation when different cassette sizes are needed.
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
Enables the use of smaller cassettes in larger containers with reduced risk of damage, simplifies handling, and ensures cleanliness for sensitive manufacturing processes.
Implementation Method 1
Attachment to the cassette springs can allow for deflection of the size adapter and/or the cassette spring to cushion the cassette and its contents during a shock event
Implementation Method 2
the engagement feature is a snap-fit engagement feature configured to be removable from the cassette spring
Data Source
AI summary
A size adapter for a substrate container includes an engagement feature capable of engaging a cassette spring provided in the substrate container. The size adapter further includes a cassette contact surface. The size adapter can be configured such that the cassette contact surface is positioned within an internal space of the substrate container such that the cassette contact surface can retain a position of a cassette that is of a size smaller than a size the substrate container is configured to accommodate.