Electronic Card Contact Layout With Offset Electrodes and Coated Metal Core
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Solution Overview
Problem
Traditional identification cards lack advanced features for secure and efficient user identification, and manufacturing techniques face challenges in producing electronic cards with unique terminal electrode layouts.
Innovation Solution
An electronic identification card with a metal substrate, integrated circuit, and a contact plate featuring an array of terminal electrodes offset from the edges, coated with a multi-layer polymer coating for durability and visual contrast, along with chamfered edges and laser-formed relief features for enhanced security and handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional identification cards are used with printed serial numbers and photographs, then manufacturing is simple and cost-effective, but security and efficiency of user identification are insufficient
Solution Approach 1:
The patent combines multiple identification elements (ferromagnetic strip, optical variable data, windowed areas, security features) into a single integrated card structure. The ferromagnetic strip is embedded within the card body, the optical variable data is incorporated into the windowed area, and all elements work together to provide enhanced security and identification efficiency while maintaining a unified card design.
Solution Approach 2:
The card employs composite materials including ferromagnetic material for the magnetic strip, optically variable material for security features, and windowed material that allows light transmission. These composite materials provide enhanced security properties while maintaining card functionality and durability.
2Manufacturing precision
If electronic cards with integrated circuits and contact plates are manufactured using traditional methods, then production processes are simple, but achieving unique terminal electrode layouts and improved durability is difficult
Solution Approach 1:
The patent applies coating layers to the card substrate before assembling the integrated circuit and contact plate components. The coating layers provide protective and aesthetic properties in advance, and the terminal electrodes are positioned with precise offset from edges during the manufacturing process, ensuring accurate layout before final assembly.
Solution Approach 2:
The card features localized coating layers with different properties in different areas - the first coating layer provides specific protection and appearance, while the second coating layer provides additional protection and visual contrast. The contact plate and integrated circuit are positioned in specific locations with precise orientations, creating local quality variations that enhance both manufacturing precision and card functionality.
3Strength
If the card uses a metal substrate with coating layers, then durability and visual appeal are improved, but manufacturing complexity increases
Solution Approach 1:
The card uses a metal substrate combined with multiple coating layers - a first coating layer and a second coating layer with different visual properties. This composite structure provides enhanced durability, corrosion resistance, and visual appeal while maintaining a relatively simple layered construction that is manufacturable using standard coating processes.
Solution Approach 2:
The metal substrate serves multiple functions: providing structural strength and durability, serving as a base for coating layers, and potentially providing electromagnetic shielding. The coating layers simultaneously provide protection, aesthetics, and visual contrast features, making the substrate structure multi-functional rather than adding unnecessary complexity.
4Reliability
If terminal electrodes are offset from the edges of the contact plate, then unique layouts and security are improved, but compatibility with standard card readers may be compromised
Solution Approach 1:
The patent offsets the terminal electrodes from the edges of the contact plate by specific distances, creating a unique geometric arrangement. This parameter change in electrode positioning provides enhanced security through difficult-to-reproduce layouts while maintaining the fundamental contactless card communication protocol compatibility, allowing adaptation to various card reader standards through software configuration rather than physical interface changes.
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 a secure and efficient electronic identification system with improved manufacturing processes, enabling unique terminal layouts and enhanced durability and visual appeal, while maintaining compatibility with existing card reader standards.
Implementation Method 1
The electronic card may be coated with a coating layer that extends at least partially over a ferromagnetic element or film
Implementation Method 2
The first recess is a first laser-ablated recess formed into the first surface of the substrate. The second recess may be a second laser-ablated recess formed into the second surface of the substrate
Data Source
AI summary
This disclosure is directed to an electronic identification card or electronic card having various features. The electronic card may include an integrated circuit and a contact plate for electrically interfacing with the integrated circuit. The contact plate may include an array of terminal electrodes that are offset with respect to the edges of the contact plate. The electronic card may be coated with a coating layer that extends at least partially over a ferromagnetic element or film. The electronic card may also include a metal substrate having exposed chamfer portions that may provide a visual contrast to the coating layer and also improve the handling and use of the electronic card.