3D-Printed Smart Cards With MEMS Authentication and XR Issuance
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Solution Overview
Problem
The existing methods for producing replacement payment instruments, such as credit or debit cards, are slow and insecure due to their reliance on conventional manufacturing processes, which are hindered by the limited form factor of these devices, making it difficult to incorporate electronic features and secure on-demand production.
Innovation Solution
A system that leverages Extended Reality (XR) and Micro Electromechanical Systems (MEMS) technology to enable users to 3D print payment instruments on-demand, using a 3D printer paired with an XR device, which includes a unique pattern of MEMS sensors for authentication and a smart chip that can be programmed and activated at an ATM, allowing for secure and rapid production of customized payment instruments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional manufacturing processes are used for payment instruments, then production is secure and centralized, but the time required for replacement is long and on-demand production is not possible
Solution Approach 1:
The system pre-generates authorization codes and security tokens before the actual card manufacturing process. Users receive digital authorization that enables their personal 3D printers to immediately produce replacement cards without waiting for centralized manufacturing, thus resolving the time delay while maintaining security through pre-validated authorization mechanisms
Solution Approach 2:
The patent enables users to print their own payment instruments at home using personal 3D printers. The system provides users with the necessary digital files and authorization codes, allowing them to self-service their card replacement needs instantly, eliminating the traditional mail or express delivery wait time while maintaining security through encrypted digital distribution
2Reliability
If electronic features are incorporated into payment instruments to enhance security and data protection, then security is improved, but the device size increases beyond the conventional form factor
Solution Approach 1:
The patent embeds electronic features such as chips and antennas within the existing card structure by nesting them into recesses or layers of the card body. The 3D printing process creates integrated structures where electronic components are housed within the card's thickness, maintaining the standard 85.60 mm × 53.98 mm × 0.8 mm form factor while incorporating security features
Solution Approach 2:
The patent uses thin-film technology and flexible circuit boards to integrate electronic features into the card. The antenna and chip connections are implemented using flexible traces that can be embedded within the card layers, allowing electronic functionality to be added without increasing the card's external dimensions
3Ease of operation
If a limited form factor is maintained for payment instruments to fit in wallets and pockets, then portability is improved, but it becomes difficult to include electronic features and provide secure on-demand production
Solution Approach 1:
The patent moves the manufacturing capability from the centralized dimension to the user's personal dimension by enabling home 3D printing. The card design includes integrated mounting structures and recesses that are printed as part of the card body, allowing electronic features to be incorporated within the limited form factor through multi-layer 3D printing techniques that utilize the card's thickness dimension
Data Source
AI summary
A user may print a smart card on-demand by leveraging an Extended Reality (XR) interface to enter card specifications and supply them to a card issuer as an encrypted payload. The card issuer may send the user a non-fungible token (NFT) with instructions for rendering and 3D printing the card using the user's XR interface. The printed card may have an interior layer that includes a pattern of micro electromechanical sensor (MEMS) tactile sensors that uniquely identify the card. The sensors may be placed in selected locations based on a predefined grid pattern of potential sensor locations. The 3D printer may add a non-programmed smart chip to the card. The 3D printer may be a user's printer, or may be a 3D printer at an automated teller machine (ATM). An ATM may be configured to validate and activate the card after detecting the MEMS pattern and programming the smart chip.