Conductive Adhesive Tape Reel Structure for Anti-Blocking
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Solution Overview
Problem
Adhesive films used in reel bodies for electronic components often experience blocking phenomena, where the adhesive adheres to unintended places, and drawing the adhesive film can result in peeling off from the support, necessitating improved anti-blocking properties.
Innovation Solution
The adhesive film includes a first adhesive layer with protruding conductive particles, such as dendritic conductive particles, and optionally a second adhesive layer with a different adhesive component, which is applied to a support to form a reel body, enhancing anti-blocking properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the adhesive component is increased to improve adhesive force, then the adhesive force is improved, but the blocking phenomenon occurs and the adhesive film peels off from the support
Solution Approach 1:
The patent applies local quality by creating a multi-layer adhesive structure where the first adhesive layer (with higher adhesive force) and second adhesive layer (with lower adhesive force) have different adhesive properties at different locations. This allows the adhesive film to have strong adhesion where needed while maintaining anti-blocking properties at the interface with the support, resolving the contradiction between adhesive force and anti-blocking property.
Solution Approach 2:
The patent uses composite materials by combining two different adhesive components in a layered structure. The first adhesive component provides high adhesive force for bonding electronic components, while the second adhesive component provides anti-blocking properties by having lower adhesive force toward the support, thus achieving both high strength and reliability simultaneously.
2Productivity
If the adhesive film is wound around the core to form a reel body, then the productivity is improved, but the blocking phenomenon occurs causing the adhesive film to peel off
Solution Approach 1:
The patent applies local quality by creating a multi-layer adhesive structure where the first adhesive layer (with higher adhesive force) and second adhesive layer (with lower adhesive force) have different adhesive properties at different locations. This allows the adhesive film to have strong adhesion where needed while maintaining anti-blocking properties at the interface with the support, resolving the contradiction between adhesive force and anti-blocking property.
Solution Approach 2:
The patent uses composite materials by combining two different adhesive components in a layered structure. The first adhesive component provides high adhesive force for bonding electronic components, while the second adhesive component provides anti-blocking properties by having lower adhesive force toward the support, thus achieving both high strength and reliability simultaneously.
Data Source
AI summary
A reel body containing: a winding core; and an adhesive tape wound around the winding core, wherein the adhesive tape contains a support and an adhesive film provided on the support, wherein the adhesive film contains an adhesive layer, wherein the adhesive layer contains an adhesive component and a plurality of conductive particles, wherein the plurality of conductive particles contain: first conductive particles that are dendritic conductive particles; and second conductive particles that are conductive particles other than the first conductive particles, each second conductive particle containing a non-conductive core and a conductive layer provided on the core, wherein a part of the plurality of conductive particles protrudes from one surface of the adhesive layer, and wherein the support faces a surface of the adhesive layer opposite to the one surface thereof.