Composite Electronic Component ESD Protection Insulation
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Solution Overview
Problem
The miniaturization and integration of portable electronic devices make it difficult to create effective electrostatic discharge (ESD) protection while maintaining reliable filtering characteristics and insulating properties, as additional ESD protection elements compromise the performance of common mode filters (CMFs).
Innovation Solution
A composite electronic component is designed with an ESD protection part that includes first and second discharge electrodes with a gap, a discharge layer between them, and a multilayered insulating layer with different breakdown voltage (BDV) values, which covers the discharge layer to enhance insulating properties and prevent leakage currents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an additional ESD protection part is built in a small chip, then ESD protection function is achieved, but insulating properties are reduced
Solution Approach 1:
The insulating layer is divided into multiple segments with different BDV values, where each segment provides different levels of insulation protection. The first insulating layer has a first BDV value and the second insulating layer has a second BDV value different from the first, creating a segmented insulation structure that maintains both ESD protection and insulating properties
Solution Approach 2:
Different regions of the insulating structure are assigned different BDV values based on local requirements. The first insulating layer covers the discharge layer with specific BDV characteristics, while the second insulating layer provides different BDV protection, creating local quality variations that optimize both ESD protection and insulation performance
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 solution effectively improves the durability and reliability of the composite electronic component by delaying the formation of leakage current paths, thereby increasing insulating properties and maintaining filtering characteristics.
Implementation Method 1
a multilayered insulating layer covering the discharge layer. The multilayered insulating layer may include at least two insulating layers having different breakdown voltage (BDV) values
Data Source
AI summary
A composite electronic component includes an element part and an electrostatic discharge (ESD) protection part disposed on the element part. The ESD protection part includes first and second discharge electrodes having a gap formed therebetween, a discharge layer disposed between the first and second discharge electrodes and in the gap, and a multilayer insulating layer covering the discharge layer and including at least two insulating layers having different breakdown voltage (BDV) values.