Duralumin Metal Card Anodized Surface for IC Chip Attachment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Metal cards lack versatility in design and pattern, and they fail to provide adequate insulation for contact IC chips and stable attachment of back-surface members due to weak adhesive forces.
Innovation Solution
A metal card made from a duralumin plate, where multiple anodizing and etching processes create various colors and patterns, and the surface is insulated and enhanced for IC chip attachment using adhesive resin and laser roughening, while etched areas on the back surface allow for stable attachment of back-surface members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a metal card sheet is used to provide a noble appearance, then the aesthetic quality is improved, but the surface becomes conductive and cannot securely attach contact IC chips
Solution Approach 1:
The patent applies local quality by creating a dual-nature surface: anodized regions provide insulation and attachment capability for IC chips, while non-anodized metal regions maintain the noble appearance. This spatial differentiation allows different areas to serve different functions - the anodized portions enable secure chip attachment through adhesive application, while the polished metal portions provide aesthetic appeal.
Solution Approach 2:
The patent creates a composite surface structure combining anodized aluminum oxide layers with underlying metal substrate. The anodized layer forms a porous oxide structure that can absorb adhesive resins, creating a composite material system that兼具 insulating properties and enhanced adhesion, while the underlying metal provides structural integrity and aesthetic appearance.
2Adaptability or versatility
If multiple anodizing and etching processes are performed to create various colors and patterns, then design versatility is improved, but manufacturing complexity increases
Solution Approach 1:
The patent employs periodic action through repeated cycles of anodizing, etching, and polishing operations. Multiple anodizing processes are performed sequentially, with etching steps in between to create patterns and color variations. This periodic repetition of processing cycles enables diverse design outcomes while using standardized process modules.
Solution Approach 2:
The patent applies preliminary action by performing masking and pattern definition before the anodizing processes. Pre-masking certain areas determines which regions will be anodized in subsequent steps, allowing complex multi-color patterns to be created through controlled sequential anodizing rather than requiring post-processing manipulation.
3Illumination intensity
If the metal card surface is polished to a high gloss finish, then the noble appearance is improved, but the adhesive force for attaching back-surface members becomes weaker
Solution Approach 1:
The patent applies local quality by differentiating surface characteristics in different regions. Areas requiring attachment (for IC chips and back-surface members) are given a rougher, anodized finish that enhances adhesive bonding, while other areas maintain high-polish gloss finish for aesthetic purposes. This spatial variation in surface quality resolves the contradiction between appearance and attachment capability.
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 metal card achieves a noble appearance with customizable colors and patterns, secure contact IC chip integration, and stable attachment of back-surface members, improving adhesive strength and functionality.
Implementation Method 1
an anodized layer is formed by anodizing a surface of the metal card sheet
Implementation Method 2
forming the anodized layer is determined according to a background color or pattern
Implementation Method 3
roughening a contact portion of the anodized area being in contact with the contact IC chip through laser sending
Data Source
AI summary
Provided is a metal card including a metal card sheet made of duralumin and an anodized layer formed by anodizing a surface of the metal card sheet, wherein a background color or pattern of the metal card is determined according to a composition of electrolyte of the anodizing for forming the anodized layer.