Security Document Chip Cavity Sealing With Registered Patch Placement
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Solution Overview
Problem
Existing security documents lack sufficient integration integrity for electronic components, making them vulnerable to unauthorized incorporation and requiring improved security features.
Innovation Solution
A method for producing security documents with precise positioning of an electronic component into a cavity within a substrate, sealed by a patch, using automated processes and detectable markings for accurate registration, and applying the patch at controlled temperatures and pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual insertion and sealing methods are used, then flexibility in handling electronic components is maintained, but registration accuracy and security against unauthorized incorporation deteriorate
Solution Approach 1:
The patent replaces manual mechanical operations with automated systems that use sensors (optical, acoustic, or other types) to detect positioning marks and automatically adjust the insertion and sealing processes. This substitution of mechanical manual control with sensor-based automated control achieves high registration accuracy while maintaining manageable system complexity through standardized automation protocols.
Solution Approach 2:
The automated system incorporates feedback mechanisms where sensors detect the position of electronic components and positioning marks on the substrate, and the system automatically adjusts positioning and sealing parameters based on this feedback. This closed-loop feedback control ensures precise registration accuracy without requiring overly complex manual intervention systems.
2Productivity
If automated production methods are implemented, then productivity and registration accuracy are improved, but detection and measurement of positioning precision becomes more difficult
Solution Approach 1:
The patent introduces intermediary positioning marks (such as optical marks, acoustic markers, or other detectable features) that serve as mediators between the automated production system and the electronic components. These marks enable the sensors to accurately detect and measure positioning precision without directly measuring the complex geometry of the electronic components themselves, thereby simplifying detection while maintaining high productivity.
Solution Approach 2:
The system creates simplified representations or copies of the positioning information through detectable marks that can be easily read by sensors. Instead of directly measuring the complex positioning of electronic components, the system uses these intermediary marks as copies that convey positioning data in a format that is easy and fast for automated sensors to detect and process.
3Reliability
If the patch dimension is made larger than the cavity, then sealing completeness is improved, but positioning precision requirements increase
Solution Approach 1:
The patent divides the sealing process into segmented steps: first positioning the electronic component with high precision using detection marks, then applying the patch in a controlled manner that ensures complete coverage. This segmentation allows the system to achieve both high positioning precision (through controlled component placement) and complete sealing (through patch coverage larger than the cavity) without requiring all operations to be performed with extreme precision simultaneously.
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
Enhances the registration accuracy and security features of the document, preventing unauthorized integration and ensuring authenticity verification.
Implementation Method 1
The automatic application of the patch to the substrate can be carried out at a temperature of 80°C to 300°C, preferably from 100°C to 240°C, and particularly preferably from 100°C to 190°C.
Implementation Method 2
It has proven advantageous to apply the patch with an embossing pressure of 10 N/cm2 to 10,000 N/cm2, preferably from 100 N/cm2 to 5,000 N/cm2.
Data Source
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AI summary
Method (100) for the automated production of a security document, comprising: providing (101) a substrate with a cavity having an inner contour adapted to an outer contour of an integrated electronic component, such that the integrated electronic component can be inserted into the cavity of the substrate with precise positioning relative to the cavity; providing (103) a patch, wherein the patch has a dimension larger than a dimension of the cavity, such that the patch can be applied to the substrate with precise positioning relative to the cavity and covers the cavity; automatically inserting (105) the integrated electronic component into the cavity of the substrate with precise positioning relative to the cavity;and automatic application (107) of the patch to the substrate and covering, in particular closing, the cavity with the inserted integrated electronic component by the patch with precise positioning of the patch relative to the cavity of the substrate.;