Embedded Tiny RFID Tags for IC Authentication and Capability Unlocking
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Solution Overview
Problem
The widespread adoption of integrated circuits (ICs) has led to the rise of counterfeit ICs, posing security risks and compromising the functionality and reliability of electronic devices, necessitating enhanced anti-counterfeiting measures.
Innovation Solution
Embedding a tiny RFID tag with an area of 0.05 mm2 or less in ICs, utilizing dual-phase RF-only logic and implemented using portable digital IP blocks, to authenticate ICs and ensure secure device operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RFID technology is incorporated into ICs to enhance anti-counterfeiting measures, then authentication reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the RFID tag with the IC by embedding the RFID tag directly into the IC substrate, creating a unified component that performs both authentication and circuit functions, thereby improving reliability while managing complexity through integration
Solution Approach 2:
The embedded RFID tag is designed to serve multiple functions including authentication, identification, and potential data storage within the IC, allowing a single component to address multiple security and functional requirements
2Area of moving object
If the RFID tag size is reduced to less than 0.05 mm2 to minimize IC area occupation, then area efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent changes the physical parameters of the RFID tag by reducing its area to less than 0.05 mm2 and adjusting its operating frequency to UHF band, which enables smaller tag design while maintaining functionality through optimized electrical characteristics
Solution Approach 2:
The RFID tag is positioned in a specific location on the IC substrate where it can be optimally integrated with surrounding circuitry, allowing the smallest possible area while maintaining manufacturing feasibility through strategic placement
3Loss of time
If a tiny embedded RFID tag is used for authentication, then authentication speed is improved, but the ability to program or customize RFID data decreases
Solution Approach 1:
The RFID tag data is pre-programmed during IC manufacturing before the IC is deployed, allowing fast authentication without requiring field programming while ensuring each IC has unique, factory-set identification data for security purposes
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
Provides a reliable and efficient method to authenticate ICs, preventing the use of counterfeit ICs and ensuring the safety and security of electronic devices.
Implementation Method 1
The tag contains a unique identification code that can be read by an RFID reader, allowing for quick and easy authentication
Data Source
AI summary
A method includes reading data encoded on a tiny RFID tag that is embedded in an integrated circuit. The RFID tag has an area of 0.1 mm2 or less and, alternatively, of 0.05 mm2 or less. When the data satisfies predetermined criteria, a capability of a device or system is unlocked. The method may be used in conjunction with artificial intelligence (AI) for identification and authentication, fraud detection, behavioral analysis, predictive analytics, and/or access control, for example. The method may also be used in credit and/or debit card transactions, in which the tiny RFID tag and integrated circuit are on a credit and/or debit card. In another embodiment, the RFID tag and IC are incorporated into a label. The label may optionally be on a good for sale.