Substrate Film Electrode Patterning for Adhesive Bonding
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Solution Overview
Problem
Existing technologies face challenges in securely attaching film-shaped members to objects, leading to peeling issues.
Innovation Solution
A substrate design featuring a film-shaped member with a first electrode having a patterning region where the member is exposed and not exposed, and an adhesive tape disposed across these regions to enhance bonding with the object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a film-shaped member is attached to an object using conventional methods, then the attachment is simple, but the film-shaped member is likely to be peeled off from the object
Solution Approach 1:
The first electrode is divided into a first region and a second region with different patterns. The adhesive tape is disposed across both regions, creating segmented attachment zones. This segmentation allows different portions of the adhesive tape to serve different functions: one portion bonds the film-shaped member to the object, while another portion bonds the electrode to the film-shaped member, thereby preventing peeling without requiring a complex multi-layer structure
Solution Approach 2:
The electrode is designed with local quality variations through patterning - the first region has a first pattern and the second region has a second pattern. This local differentiation allows the adhesive tape to be effectively utilized in specific regions where bonding is needed, while maintaining electrical functionality in other regions, thus achieving reliable attachment without overall structural complexity
2Strength
If adhesive tape is disposed across the entire electrode surface, then bonding strength is maximized, but the film-shaped member cannot be exposed where needed
Solution Approach 1:
The electrode surface is segmented into first and second regions with different patterns. The adhesive tape is disposed across both regions but the underlying electrode patterns differ. This segmentation allows the adhesive tape to provide bonding strength in covered regions while the patterned electrode structure in the first region allows film-shaped member exposure where electrical contact is not needed
Solution Approach 2:
Different regions of the electrode have different local qualities through patterning. The first region has a pattern that allows film-shaped member exposure, while the second region has a different pattern suitable for adhesive bonding. This local quality differentiation enables the adhesive tape to provide strong bonding where needed while maintaining adaptability for exposure in other regions
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 substrate effectively prevents the film-shaped member from peeling off from the object by increasing the adhesive strength through strategic patterning and tape placement.
Implementation Method 1
an adhesive tape facing the fourth main surface of the first electrode and the second main surface of the film-shaped member such that the adhesive tape is disposed across the first part and the second part in the first patterning region
Data Source
AI summary
A substrate that includes a film-shaped member that has a first main surface and a second main surface; a first electrode that has a third main surface and a fourth main surface, the third main surface facing the second main surface of the film-shaped member, the first electrode having a first patterning region with a first part where the film-shaped member is exposed from the first electrode and a second part where the film-shaped member is not exposed from the first electrode; and an adhesive tape facing the fourth main surface of the first electrode and the second main surface of the film-shaped member such that the adhesive tape is disposed across the first part and the second part in the first patterning region.