Stretchable Platform Covalent Bonding High Strain Stability
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Solution Overview
Problem
Conventional stretchable platforms with rigid islands operate reliably only in low strain regions, and existing methods for producing stretchable electronic devices on substrates face limitations due to differences in surface energy and require complex patterning techniques, limiting material choices and stability under high strain.
Innovation Solution
A stretchable platform formation method involving the formation of an adhesive layer on a rigid member, surface modification to create incomplete bonds, and covalent bonding with a stretchable substrate or buffer pattern to enhance stability under high strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If rigid islands are inserted into conventional stretchable platforms, then structural stability is improved, but the platform can only operate reliably in low strain regions
Solution Approach 1:
The invention changes the bonding parameter from conventional physical adhesion to covalent bonding between the adhesive layer and stretchable substrate. This chemical bonding approach enables the platform to maintain structural stability while operating in high strain regions, resolving the contradiction between structural stability and strain region compatibility
Solution Approach 2:
The invention uses a composite structure consisting of a rigid member, adhesive layer, and stretchable substrate. The adhesive layer forms covalent bonds with both the rigid member and the stretchable substrate, creating a composite material system that combines the advantages of rigid structures with the flexibility of stretchable materials, enabling stable operation in high strain regions
2Adaptability or versatility
If materials with high Young's modulus are directly produced on stretchable substrates, then material selection flexibility is improved, but complex patterning techniques such as photolithography and masking are required
Solution Approach 1:
The invention segments the production process into distinct steps: forming an adhesive layer on the rigid member, surface modification to create incomplete bonds, and covalent bonding with the stretchable substrate. This segmentation eliminates the need for complex photolithography and masking techniques, simplifying the overall manufacturing process while maintaining material selection flexibility
Solution Approach 2:
The invention performs preliminary surface modification to create incomplete bonds on both the adhesive layer and stretchable substrate before bonding. This preliminary action prepares the surfaces for covalent bonding, eliminating the need for complex patterning techniques and simplifying the manufacturing process
3Ease of manufacture
If adhesive layers are used to bond rigid members to stretchable substrates, then manufacturing simplicity is improved, but delamination occurs under high strain conditions
Solution Approach 1:
The invention changes the bonding mechanism parameter from physical adhesion to covalent bonding. This fundamental parameter change maintains the simplicity of using an adhesive layer while dramatically improving bonding reliability, preventing delamination under high strain conditions
Solution Approach 2:
The invention replaces the mechanical bonding system with a chemical bonding system. Instead of relying on mechanical adhesion that fails under strain, the invention uses covalent bonding to create a chemically bonded interface between the adhesive layer and stretchable substrate, maintaining manufacturing simplicity while achieving high reliability
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 method enables stable operation of stretchable platforms even under high strain conditions, providing a reliable manufacturing method that surpasses the limitations of prior art by forming covalent bonds between the adhesive layer and the substrate or buffer pattern, reducing stress and preventing delamination.
Implementation Method 1
bonding the modified surface of the stretchable substrate and the modified surface of the adhesive layer such that a covalent bond is formed therebetween
Data Source
AI summary
A method for forming a stretchable platform according to one embodiment comprises: (a) a step of forming an adhesive layer on one surface of a rigid member; (b) a step of modifying one surface of a stretchable substrate and an adhesive layer surface to form an incomplete bond; and (c) a step of bonding so as to form a covalent bond between the one surface of a modified stretchable substrate and the adhesive layer surface.