Composite Electronic Component Integrated ESD Protection
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Solution Overview
Problem
Miniaturization and high integration of portable electronic devices make it difficult to incorporate separate ESD protection devices, increasing the need for a composite electronic component with integrated ESD protection and high resistance to static discharge.
Innovation Solution
A composite electronic component design featuring a dielectric portion with first and second external electrodes, third and fourth electrodes, a gap between them, a groove below the gap, and an ESD discharge layer in the gap, which provides effective ESD protection by ensuring uniform distribution of the ESD discharge layer and preventing partial current flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate ESD protection devices are used, then ESD protection performance is improved, but device size and complexity increase making it difficult to dispose in miniaturized portable electronic devices
Solution Approach 1:
The patent combines the ESD protection function with the existing capacitor structure by integrating an ESD discharge layer between the electrodes of the capacitor. This merging of functions allows the component to serve both as an energy storage element and an ESD protection device, eliminating the need for separate ESD protection components and reducing overall device complexity while maintaining ESD protection performance
Solution Approach 2:
The capacitor structure is designed to perform multiple functions: energy storage and ESD protection. By incorporating the ESD discharge layer within the capacitor's electrode structure, the same physical component handles both capacitive functions and electrostatic discharge protection, making the device universal and suitable for miniaturized portable electronic devices
2Reliability
If ESD discharge layer is applied without groove structure, then manufacturing process is simplified, but ESD discharge layer distribution becomes uneven causing partial current flow and reduced protection effectiveness
Solution Approach 1:
The patent divides the ESD discharge layer application area into multiple segments by introducing grooves that partition the space between electrodes. This segmentation ensures uniform distribution of the ESD discharge layer material across different regions, preventing concentration in specific areas and ensuring consistent ESD protection effectiveness throughout the component
Solution Approach 2:
The grooves act as intermediary structures that facilitate uniform ESD discharge layer distribution. By providing defined pathways and spacing, the grooves mediate the application process, ensuring the ESD discharge layer is evenly distributed between electrodes without requiring complex manufacturing controls
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 design enhances resistance to static discharge and overvoltage, improving the reliability of the electronic component by preventing damage from uneven current flow and ensuring durability against repetitive discharges.
Implementation Method 1
an electrostatic discharge (ESD) layer disposed in the gap
Data Source
AI summary
A composite electronic component includes: a body part including a dielectric portion; first and second external electrodes disposed on outer surfaces of the body part; a plurality of first and second electrodes disposed inside of the dielectric portion, and electrically connected to the first and second external electrodes, respectively; third and fourth electrodes disposed on an upper portion of the dielectric portion, and electrically connected to the first and second external electrodes, respectively; a gap provided between the third and fourth electrodes; a groove disposed below the gap; and an electrostatic discharge (ESD) layer disposed in the gap.