Capacitor Barrier Layer with Clay and Moisture Absorption
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Solution Overview
Problem
Existing electronic components, particularly capacitors, suffer from degradation in performance due to moisture exposure, necessitating improved moisture resistance.
Innovation Solution
Incorporating a barrier layer comprising a clay layer with a labyrinthine structure and a water absorbing layer to suppress moisture penetration, where the clay layer minimizes moisture and gas passage through a reduced thickness, and the water absorbing layer absorbs any moisture that does penetrate, thereby maintaining the component's performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a molecular sieve is mixed with epoxy resin to improve moisture resistance, then moisture resistance is improved, but the barrier layer thickness cannot be reduced
Solution Approach 1:
The patent combines clay particles (forming a labyrinthine structure) with a resin matrix to create a composite barrier layer. This composite structure provides superior moisture resistance compared to molecular sieves mixed in epoxy resin, while enabling reduction of the barrier layer thickness. The clay particles create a tortuous path for moisture diffusion, enhancing protection without requiring increased thickness.
Solution Approach 2:
The patent transitions from a homogeneous mixture approach (molecular sieve in epoxy) to a structured composite approach with clay particles forming a three-dimensional labyrinthine network. This dimensional reorganization creates a more effective barrier per unit thickness, resolving the contradiction between moisture resistance and thickness reduction.
2Reliability
If a thick barrier layer is used to suppress moisture passage, then moisture resistance is improved, but the electronic component size increases
Solution Approach 1:
By using clay-resin composite materials with labyrinthine structure, the patent achieves high moisture resistance in a thin layer, directly reducing the volume required for the barrier function while maintaining protection effectiveness.
Solution Approach 2:
The patent changes the structural parameters of the barrier layer by introducing clay particles with specific aspect ratios and concentrations, transforming the resin from a simple matrix to a structured composite with enhanced barrier properties per unit volume.
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 provides enhanced moisture resistance, reducing the likelihood of performance degradation even in humid environments, while allowing for a more compact design by minimizing the barrier layer's thickness without compromising protection.
Implementation Method 1
a clay layer containing clay and a water absorbing layer containing a water absorbing material, in which the water absorbing layer is disposed between the electronic component element and the clay layer
Implementation Method 2
a water absorbing layer containing a water absorbing material such that the moisture passing through the at least one clay layer is absorbed by the water absorbing material
Data Source
AI summary
An electronic component includes an electronic component element and a barrier layer disposed outside the electronic component element. The barrier layer includes a clay layer containing clay and a water absorbing layer containing a water absorbing material. The water absorbing layer is disposed between the electronic component element and the clay layer. The clay layer preferably further contains a binder. The clay contains mineral particles preferably including a plate-shaped or thin-flake-shaped particle.