ESD Protection Component Via Through-Hole Electrodes
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Solution Overview
Problem
The existing ESD protection components with electrodes on the same layer suffer from adherence issues between insulator layers, leading to structural defects and infiltration of plating solution, which can cause short-circuits due to exposed electrodes during the manufacturing process.
Innovation Solution
The ESD protection component design includes electrodes with extraction and opposite portions on different layers, connected via through hole conductors, reducing the total area of electrodes on the same layer and enhancing adherence between insulator layers to prevent plating solution infiltration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the opposite electrodes and ground electrode are placed on the same layer and exposed in the exterior surface, then the total area of electrodes is increased, but the adherence between insulator layers deteriorates and structural defects occur
Solution Approach 1:
The patent transitions from a two-dimensional layout where all electrodes are on the same layer to a three-dimensional stacked configuration where extraction portions and opposite portions are on different layers. This vertical arrangement reduces the horizontal footprint of electrodes on any single layer, thereby improving insulator layer adherence while maintaining electrical functionality through through-hole conductors that connect corresponding electrodes across layers.
2Ease of manufacture
If the electrodes are exposed in the exterior surface on the same layer, then the manufacturing process is simplified, but plating solution infiltration occurs through exposed portions
Solution Approach 1:
By positioning extraction portions and opposite portions on different layers and connecting them via through-hole conductors, the patent reduces the number of exposed electrode portions on the exterior surface. This dimensional reconfiguration minimizes infiltration pathways for plating solution while preserving the essential electrode connections needed for ESD protection functionality.
3Device complexity
If multiple electrodes are placed on the same layer, then the device structure is simplified, but gap portions are filled with plating solution causing short-circuits
Solution Approach 1:
The patent distributes electrodes across multiple layers vertically, reducing the density of exposed electrode portions on any single layer. This spatial separation prevents plating solution from filling gap portions between adjacent electrodes on the same layer, thereby eliminating the short-circuit risk while maintaining the essential electrode connectivity through through-hole conductors.
Data Source
AI summary
An ESD protection component includes opposite electrodes and a ground electrode. The opposite electrodes and the ground electrode each have an extraction portion and an opposite portion. The respective opposite portions of the opposite electrodes and the ground electrode are placed on the same layer. At least one of the opposite electrodes and the ground electrode, the extraction portion and the opposite portion are placed on respective different layers and, also, are electrically connected to each other via a through hole conductor.