Rear Retainer Venting Structure for Faster Substrate Container Drying
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Solution Overview
Problem
The issue of insufficient drying of the inner surface of the rear retainer after cleaning, due to poor drainage and ventilation, prolongs the drying time and increases manufacturing costs in substrate storing containers.
Innovation Solution
The substrate storing container is designed with a rear retainer featuring protruding walls and flow holes that allow liquid and gas to flow out, improving drainage and ventilation, and includes back-side substrate supports that collaborate with lid-side supports to maintain substrate alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the rear retainer is disposed adjacent to the back wall of the substrate storing space, then substrate support stability is improved, but drainage and ventilation performance deteriorates
Solution Approach 1:
The rear retainer is divided into multiple protruding walls (first, second, third, and fourth protruding walls) that create separate drainage regions. Each protruding wall segment helps channel cleaning liquid toward drainage holes, improving overall drainage efficiency while maintaining structural stability for substrate support.
Solution Approach 2:
Drainage holes are introduced as intermediary elements within the rear retainer structure. These holes act as mediators that facilitate the removal of cleaning liquid from the inner surface of the rear retainer, enabling drainage and ventilation functions without compromising the substrate support stability provided by the protruding walls.
2Reliability
If the rear retainer has a solid structure adjacent to the back wall, then substrate holding capability is improved, but drying efficiency deteriorates
Solution Approach 1:
The rear retainer incorporates drainage holes that create a porous structure within the otherwise solid component. This porous design allows cleaning liquid to pass through and air to circulate, significantly improving drying efficiency while the surrounding solid protruding walls maintain the substrate holding capability.
Solution Approach 2:
The solid structure of the rear retainer is segmented by introducing drainage holes at strategic locations. This segmentation creates channels for liquid drainage and air flow, enabling efficient drying without compromising the overall structural integrity and substrate holding capability provided by the protruding walls.
3Manufacturing precision
If cleaning liquid remains on the inner surface of the rear retainer, then cleaning completeness is improved (liquid stays in place), but drying time increases
Solution Approach 1:
Drainage holes are introduced to extract and remove cleaning liquid from the inner surface of the rear retainer. By providing dedicated drainage pathways, the cleaning liquid is actively removed rather than remaining in place, which significantly reduces drying time while ensuring thorough cleaning coverage.
Solution Approach 2:
The drainage holes serve as intermediary channels that facilitate the rapid removal of cleaning liquid from the rear retainer inner surface. These holes mediate between the cleaning process and drying process, enabling efficient liquid removal that reduces drying time without compromising cleaning completeness.
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 design facilitates efficient drying of the rear retainer's inner surface, reducing drying time and lowering manufacturing costs by enhancing drainage and ventilation.
Implementation Method 1
flow holes through which liquid and/or gas existing on a side of the inner surface of the protruding wall flows when the protruding side of the protruding wall faces downward
Implementation Method 2
flow holes through which liquid and/or gas existing on a side of the inner surface of the protruding wall flows when the protruding side of the protruding wall faces downward
Data Source
AI summary
The rear retainer comprises: a rear-side substrate support portion which is disposed to be paired with the lid-side substrate support portion in the substrate housing space and is capable of supporting the edges of substrates, and which, when the container body opening portion is closed by the lid, cooperates with the lid-side substrate support portion to support the substrates with the edges of the substrates arranged in parallel; a protruding wall portion with an outer surface protruding toward the container body opening portion and an inner surface recessed toward the container body opening portion, the protruding wall portion having the rear-side substrate support portion provided on the protruding side of the protruding wall portion; and a circulation hole which, when the protruding side of the protruding wall portion is facing downward, allows circulation of a liquid and/or a gas that is positioned on the inner surface side of the protruding wall portion.