Multilayer Electronic Component Insulating Layer Strain Strength

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Solution Overview

Problem

Multilayer electronic components with glass insulating layers face strain strength issues when subjected to strong stress, leading to cracks and reduced performance.

Innovation Solution

A multilayer electronic component design featuring insulating layers with a glass composition and ceramic composition, containing a metal oxide, which improves strain strength by enhancing adhesiveness between internal electrode layers and insulating layers, with specific compositions and structures to prevent cracking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If glass is used in the insulating layer, then moisture resistance is improved, but strain strength deteriorates and cracks emerge under strong strain

Engineering Contradiction:

Improvemoisture resistanceVSAvoidstrain strength

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The insulating layer is formed as a composite material containing both glass composition (for moisture resistance) and ceramic composition (for strain strength). Specifically, the insulating layer includes glass frit and ceramic particles, creating a composite structure that combines the advantages of both materials: the glass phase provides moisture barrier properties while the ceramic phase provides mechanical strength and crack resistance under strain conditions.

Inventive Principle:

Principle #40Composite materials

2Ease of manufacture

If the internal electrode comes out from side surfaces, then manufacturing is simplified, but withstand voltage decreases

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidwithstand voltage

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

An insulating layer is introduced as an intermediary substance between the internal electrode and the external environment. This insulating layer covers the side surfaces where internal electrodes protrude, preventing direct exposure and electrical breakdown. The insulating layer acts as a mediator that maintains the simplified manufacturing structure while restoring the withstand voltage capability by providing electrical insulation at the critical electrode exposure points.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 proposed design significantly enhances strain strength and prevents cracking, maintaining performance under strong stress conditions while maintaining moisture resistance and electrostatic capacitance.

Implementation Method 1

enhancing adhesiveness between internal electrode layers and insulating layers

Methodology Applied

Scientific EffectAdhesion: Adhesive

Implementation Method 2

prevents cracking, maintaining performance under strong stress conditions

Methodology Applied

Scientific EffectStrength enhancement:

Data Source

PatentUS10366837B2Multilayer electronic component

Publication Date: 2019.07.30 TDK CORP

AI summary

The present invention relates to a multilayer electronic component which includes an element body where a plurality of internal electrode layers and dielectric layers are alternately laminated. Insulating layers are disposed on at least one side surface of the element body. The insulating layers contain a glass composition and a ceramic composition. The internal electrode layers contain a metal M and the ceramic composition contains an oxide of the metal M.