Ceramic Circuit Board Marking for Production Traceability

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Solution Overview

Problem

There is a need for a novel method to acquire information about electronic components, such as ceramic circuit boards, heat-dissipating members, and aluminum-diamond composites, during the production process.

Innovation Solution

Incorporating a marker portion on the surface of the ceramic circuit board, heat-dissipating member, and aluminum-diamond composite, which can be formed using a metal layer, heat-dissipating fin, and surface layers respectively, to indicate production information using codes or symbols, potentially created by laser or coating materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a marker pattern is formed on a ceramic circuit board using conventional methods, then information can be indicated, but the method lacks novelty and traceability enhancement

Engineering Contradiction:
Improveinformation traceabilityVSAvoidmarker formation method
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent uses laser to form marker patterns by copying information onto the ceramic circuit board surface. The laser creates precise markings that replicate identification data, enabling traceability without complex additional components. This resolves the contradiction by providing a novel information transfer method that enhances traceability while maintaining simplicity.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces conventional mechanical marking methods with laser-based marking. The laser beam substitutes mechanical contact tools, creating marker patterns through optical energy rather than physical abrasion or deposition. This substitution provides a novel approach that enhances information traceability while reducing mechanical complexity in the marking process.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Temperature

If an aluminum-diamond composite is used as a heat-dissipating member, then heat dissipation performance is improved, but information acquisition capability is insufficient

Engineering Contradiction:
Improveheat dissipation performanceVSAvoidcomponent information acquisition
Core Design Contradiction:
TemperatureVSLoss of information

Solution Approach 1:

The patent integrates marker patterns directly onto the aluminum-diamond composite heat-dissipating member, making it serve dual functions: heat dissipation and information identification. The marker portion is formed on the surface of the composite material, allowing the same component to simultaneously manage thermal performance and provide traceability information, thus resolving the contradiction between heat dissipation capability and information acquisition.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Loss of information

If marker portions are formed on component surfaces, then traceability is enhanced, but surface area and potential performance are affected

Engineering Contradiction:
ImprovetraceabilityVSAvoidsurface area
Core Design Contradiction:
Loss of informationVSArea of stationary object

Solution Approach 1:

The patent forms marker portions at specific localized areas on the component surfaces rather than covering the entire surface. The laser creates concentrated marker patterns in discrete locations, providing necessary traceability information while preserving the majority of the component's surface area for its primary functions. This local approach resolves the contradiction by achieving traceability with minimal surface area impact.

Inventive Principle:
Principle #3Local quality

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

This method allows for enhanced traceability and information acquisition about the components, improving production tracking without affecting performance or productivity.

Implementation Method 1

The marker pattern is formed by, for example, a laser

Methodology Applied
Scientific EffectLaser ablation: Laser Ablation

Data Source

PatentUS11983586B2Ceramic circuit board, heat-dissipating member, and aluminum-diamond composite
Publication Date: 2024.05.14 DENKA CO LTD
  • US11983586B2 patent drawing
  • US11983586B2 patent drawing
  • US11983586B2 patent drawing

AI summary

A ceramic circuit board includes a ceramic base material, a metal layer (first metal layer), and a marker portion. The marker portion is formed on the surface of the first metal layer. The surface of the metal layer (first metal layer) may be plated. When the surface of the metal layer (first metal layer) is plated, the marker portion may be formed on the plating.