Porous Flow-Path Laminate Structure for Reliable Adhesive Bonding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing inspection devices face challenges in achieving complex flow path structures for multistage reactions, difficulty in bonding substrates, and instability in liquid flowability due to gaps and complex assembly processes.
Innovation Solution
A laminate structure comprising a first and second sheet-like structure with porous flow paths and an adhesive layer that ensures bonding without separation, using a water-resistant thermal adhesive in a mesh or parallel line configuration to maintain flowability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If multiple substrates are bonded using a double-sided tape to form a three-dimensional flow path, then the flow path complexity is improved, but the assembly process becomes complicated and gaps are formed between substrates
Solution Approach 1:
The patent merges the bonding function and the gap-filling function into a single adhesive layer. The adhesive layer is applied directly to the substrate surface and simultaneously performs both bonding and gap-filling operations, eliminating the need for separate gap-filling steps and simplifying the assembly process while maintaining complex three-dimensional flow path structures
2Ease of manufacture
If multiple substrates are bonded using a stapler to form a three-dimensional flow path, then the assembly process is simplified, but the bonding reliability is insufficient and liquid flowability becomes unstable
Solution Approach 1:
The patent replaces the mechanical stapling system with a chemical adhesive bonding system. The adhesive layer creates reliable chemical bonds between substrates, ensuring stable liquid flowability through the three-dimensional flow paths, while the process remains simple and suitable for mass production
3Strength
If an adhesive layer is used to bond substrates, then bonding is achieved, but the gap between substrates affects liquid flowability
Solution Approach 1:
The patent employs a porous adhesive layer that contains voids or channels allowing liquid to flow through it. This porous structure enables the adhesive layer to simultaneously provide strong bonding between substrates and maintain liquid flowability by allowing liquid to pass through the adhesive layer via capillary action or pressure-driven flow
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 laminate structure facilitates easy bonding and ensures sufficient flowability without complex assembly, addressing the limitations of existing devices.
Implementation Method 1
an adhesive layer that is arranged between the first sheet-like structure and the second sheet-like structure and is in contact with part of a surface of the porous structure of the first sheet-like structure and part of a surface of the porous structure of the second sheet-like structure
Implementation Method 2
a first sheet-like structure having a porous structure serving as a flow path
Data Source
Figure 1~2A
Figure 2B
Figure 3A~3B
AI summary
A laminate structure includes: a first sheet-like structure having a porous structure serving as a flow path exposed at a surface of the first sheet-like structure; a second sheet-like structure having a porous structure serving as a flow path exposed at a surface of the second sheet-like structure; and an adhesive layer that is arranged between the first sheet-like structure and the second sheet-like structure and is in contact with part of a surface of the porous structure of the first sheet-like structure and part of a surface of the porous structure of the second sheet-like structure such that the porous structure of the first sheet-like structure and the porous structure of the second sheet-like structure face each other, and the first sheet-like structure and the second sheet-like structure are not separated.