Chip Card Circuit Integration via Exposed Terminals

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Solution Overview

Problem

The existing methods for manufacturing chip cards with integrated display and electronic circuits are costly due to the need for complex printed circuits and radio-frequency communication interfaces, which increase manufacturing costs and complexity.

Innovation Solution

A method involving forming a support body with a cavity and a battery, connecting an electronic circuit to the battery via terminals within the cavity, and exchanging data through electrical contact, allowing for the integration of a display module and real-time clock without requiring external contact modules or radio-frequency interfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If ISO 7816 contact module is used for data exchange, then data communication is enabled, but printed circuit complexity increases

Engineering Contradiction:

Improvedata exchange capabilityVSAvoidprinted circuit complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the data exchange function from the complex ISO 7816 contact module and implements it through simple exposed electrical terminals on the PCB. This allows data communication to be achieved without requiring a complete ISO 7816 contact module, thereby reducing printed circuit complexity while maintaining the essential data exchange capability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses simple electrical terminals instead of expensive standardized contact modules. These terminals are basic conductive elements on the PCB that provide the necessary electrical connection for data exchange, eliminating the need for costly and complex ISO 7816 compliance hardware.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Reliability

If radio frequency antenna is used for contactless communication, then contactless data exchange is enabled, but manufacturing cost increases

Engineering Contradiction:

Improvecontactless communication capabilityVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces expensive radio frequency antennas and contactless communication modules with simple electrical terminals and wired communication. This substitution dramatically reduces manufacturing costs while providing reliable data exchange functionality through the exposed terminals that can be connected to external interfaces.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent extracts the essential data exchange function from the complex radio frequency communication system and implements it through basic electrical terminals. This removes the need for expensive antennas, RF circuitry, and associated manufacturing processes while maintaining the core capability of communicating data between the embedded device and external systems.

Inventive Principle:

Principle #2Taking out (Extraction)

3Stability of the object's composition

If complete assembly is performed before data exchange, then integration is improved, but electrical adjustment becomes difficult

Engineering Contradiction:

Improveassembly integrationVSAvoidelectrical adjustment ease

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent performs data exchange and electrical adjustment operations before final assembly completion. The exposed electrical terminals are designed to be accessible during the assembly process, allowing programming, configuration, and testing to be performed on the embedded device before it is fully enclosed in the housing. This preliminary action ensures that all electrical adjustments can be made while maintaining good integration.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent creates local access points (exposed electrical terminals) at specific locations on the PCB that allow electrical connection and data exchange without requiring complete disassembly. These locally accessible terminals enable targeted electrical adjustment and programming operations at specific points in the assembly process while maintaining overall integration stability.

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 approach simplifies and cost-reduces the manufacturing process by eliminating the need for complex printed circuits and radio-frequency interfaces, enabling efficient electrical adjustment and personalization of the RTC clock within the chip card.

Implementation Method 1

forming a support body comprising a battery inside

Methodology Applied

Scientific EffectBattery (electricity): Battery (electricity)

Implementation Method 2

connecting an electronic/electrical circuit to the battery via the terminals located in said cavity

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS10013648B2Method for fabricating an electronic/electrical circuit device

Publication Date: 2018.07.03 THALES DIS FRANCE SA

AI summary

The invention relates to a method for fabricating an electronic device comprising an electronic/electrical circuit, wherein it comprises the following steps: formation of a support-body comprising a battery inside; making of a cavity emerging on the surface of the support-body, said cavity revealing connection terminals of the battery; connection of an electronic/electrical circuit to the battery via the terminals situated in said cavity; exchanging of data in the electronic/electrical circuit by electrical contact. The invention also relates to the corresponding electronic device.