Electrical Debonding Adhesive Sheet With Segmented Protrusions
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Solution Overview
Problem
Existing electrical debonding type adhesive sheets face issues with unstable voltage application due to protrudent parts that are not fixed and prone to unintended electrical contact, leading to potential short circuits and increased operation steps.
Innovation Solution
The adhesive sheet includes a substrate with electroconductive and base layers, featuring first and second protrudent parts that allow stable voltage application by folding back the first protrudent part towards the second adhesive layer and applying voltage to create a potential difference for debonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protrudent part is exposed to improve voltage application efficiency, then electrical contact is enhanced, but the protrudent part becomes unstable and may cause unintended electrical contact
Solution Approach 1:
The adhesive sheet is divided into multiple protrudent parts (first protrudent part and second protrudent part) with different functions. The first protrudent part extends from the first adhesive layer while the second protrudent part extends from the second adhesive layer, allowing independent control and stable voltage application without unintended contact
Solution Approach 2:
The folded-back first protrudent part acts as an intermediary element that stabilizes the voltage application structure. By folding back towards the second adhesive layer, it creates a stable configuration that prevents unintended electrical contact while maintaining proper voltage application to the electrical debonding type adhesive layer
2Adaptability or versatility
If the substrate for voltage application is made thin and flexible, then adaptability is improved, but contact stability with voltage application device deteriorates
Solution Approach 1:
The substrate for voltage application is segmented into multiple protrudent parts that extend from different adhesive layers. This segmentation allows the thin and flexible substrate to maintain contact stability through multiple contact points, preventing the instability that would occur with a single thin contact area
Solution Approach 2:
The protrudent parts extend in the plane direction of the substrate, creating a three-dimensional structure that enhances contact stability. By utilizing the plane direction extension rather than relying solely on thickness, the thin and flexible substrate achieves stable contact with voltage application devices
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
This configuration enables stable electrical debonding of joined bodies by ensuring consistent voltage application and reducing the number of operation steps.
Implementation Method 1
a substrate for voltage application, which includes an electroconductive layer and a base layer
Implementation Method 2
an electrical debonding type adhesive layer constituted of an electrically debondable adhesive composition and which undergoes debonding upon voltage application to the adhesive layer
Data Source
AI summary
The present invention provides an electrical debonding type adhesive sheet capable of producing a joined body in which a voltage can be stably applied to an electrical debonding type adhesive layer. An electrical debonding type adhesive sheet according to a first embodiment of the present invention includes a first adhesive layer, a substrate for voltage application including an electroconductive layer and a base layer, and a second adhesive layer in this order, and has a first protrudent part, in which the first adhesive layer and the substrate for voltage application extend and protrude with respect to the second adhesive layer, and a second protrudent part, in which the substrate for voltage application extends from the first protrudent part and protrudes with respect to the first adhesive layer.