Substrate Retainer with Inclined Guiding Face
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Solution Overview
Problem
Conventional substrate containers experience issues with substrate retention during shocks, leading to bending of elastic pieces, substrate contamination, and increased friction, which can result in substrate breakage or catching.
Innovation Solution
A retainer with a frame, elastic pieces, and protruding parts with inclined faces is designed to control substrate position, reduce friction, and prevent contamination, featuring a coupling piece with ends coupled to horizontal parts and protruding parts that guide substrates between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elastic pieces are used to retain substrates, then substrates can be held in position, but under shock the elastic pieces bend and move causing substrates to run off and break or become contaminated
Solution Approach 1:
The patent introduces a protruding part with an inclined face that contacts the substrate periphery before the elastic piece does. This inclined face acts as a cushioning element that guides the substrate during shock events, preventing the substrate from running off the holding groove and breaking, while the elastic piece provides the primary retention force under normal conditions
2Reliability
If the groove is formed into V-shape with deeper depth and narrower width to counter shock, then shock resistance improves, but friction increases causing substrate contamination or catching
Solution Approach 1:
The patent divides the substrate retention function into two separate components: the holding groove (which provides retention under normal conditions) and the protruding part with inclined face (which provides shock resistance). This segmentation allows each component to be optimized for its specific function without the trade-off present in the conventional single-groove design
Solution Approach 2:
The protruding part with inclined face acts as an intermediary element between the substrate and the holding groove. During shock events, this intermediary guides the substrate periphery, reducing direct contact and friction between the substrate and the holding groove, thereby preventing contamination while maintaining shock resistance
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 retainer effectively stabilizes substrate position, reduces friction, and minimizes contamination, enabling stable retention even under shock conditions and during transportation.
Implementation Method 1
an elastic piece protruding inside from the vertical direction part and being capable of controlling a position of the substrate
Implementation Method 2
this inclined face can easily guide the substrate to reduce the friction of the substrate and to control the position of the substrate
Data Source
AI summary
When the position of a substrate is shifted, the substrate is made to return to an original position by enabling the position of the substrate to be controlled using an elastic piece which protrudes inside from a vertical direction part of a frame. Further, a coupling piece is provided extending in a vertical direction and having both ends thereof coupled to a horizontal direction part of the frame, and a protruding part protruding inside a substrate container is provided on the coupling piece. Then, this protruding part is configured to have an inclined face which is inclined in a direction intersecting the substrate and enabled to come into contact with the periphery of the substrate, and thereby this inclined face guides the substrate to reduce the friction of the substrate and to control the position of the substrate.