Electrically Debondable Adhesive for Batch Conductivity Inspection
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Solution Overview
Problem
Existing methods for inspecting electronic components are inefficient, particularly when dealing with large numbers, as they require individual measurement and determination of electrical conductivity, lacking a method for simultaneous and collective measurement and defect determination.
Innovation Solution
An electrical conductivity inspection method using an electrically debondable pressure-sensitive adhesive layer, where the inspection target is joined to a fixing member, a voltage is applied, and the electrically conductive property is determined based on the joining state after voltage application, allowing for simultaneous inspection and separation of inspection targets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individual measurement and determination of electrical conductivity is performed for each electronic component, then measurement precision is maintained, but productivity deteriorates due to inability to inspect efficiently large numbers of components
Solution Approach 1:
The patent merges multiple inspection targets onto a single substrate using pressure-sensitive adhesive, enabling simultaneous application of voltage and collective measurement of electrical conductivity for multiple components at once, thereby resolving the contradiction between individual measurement precision and batch inspection productivity
Solution Approach 2:
The substrate with multiple inspection targets serves as a universal platform that can be collectively inspected using a single voltage application and measurement process, making the inspection system multi-functional for handling various electronic components simultaneously
2Ease of operation
If pressure-sensitive adhesive is used to join inspection targets to fixing member, then ease of operation is improved, but separation difficulty increases when inspection targets remain attached after inspection
Solution Approach 1:
The patent changes the parameters of the pressure-sensitive adhesive by selecting specific types that provide appropriate bonding strength for joining during inspection but allow easy separation afterward, resolving the contradiction between joining ease and separation ease
Solution Approach 2:
The adhesive properties are made dynamic - strong during the inspection process for secure joining, but easily reversible afterward for simple separation, allowing the system to adapt to different operational phases
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 method enables efficient determination of the electrically conductive property of inspection targets and facilitates easy separation of remaining targets from the adhesive layer, improving inspection efficiency and productivity.
Implementation Method 1
joining an inspection target and a fixing member together using an electrically debondable pressure-sensitive adhesive layer capable of joining the inspection target and the fixing member
Implementation Method 2
applying a voltage to the inspection target and the electrically debondable pressure-sensitive adhesive layer
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
To efficiently determine an electrically conductive property of an inspection target. In an electrical conductivity inspection method, an inspection target (an electrical conductor 3 or an insulator 4) and a fixing member 2 are joined together using an electrically debondable pressure-sensitive adhesive layer 1 capable of joining the inspection target and the fixing member 2, a voltage is applied to the inspection target and the electrically debondable pressure-sensitive adhesive layer 1, and an electrically conductive property of the inspection target is determined according to a joining state between the inspection target and the fixing member 2 after the voltage is applied.