Feature Control System for Secure IC Provisioning
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Solution Overview
Problem
The outsourcing of semiconductor manufacturing and distribution leads to loss of control for manufacturers, increasing the risk of counterfeit components, inventory management challenges, and reduced revenue due to inability to enforce product differentiation and secure feature provisioning.
Innovation Solution
A feature control system that enables secure, remote identification, auditing, and provisioning of integrated circuit devices, allowing manufacturers to securely enable or disable features at any time, reducing inventory complexity and preventing unauthorized upgrades through a point of trust mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manufacturers outsource semiconductor manufacturing and distribution to specialized companies, then manufacturing efficiency and specialization improve, but control over operations and product quality deteriorates
Solution Approach 1:
A secure provisioning system acts as an intermediary between the original manufacturer and contract manufacturer. The system includes a provisioning server at the original manufacturer and a provisioning component at the contract manufacturer, enabling controlled feature activation without direct operational control. This mediator maintains trust and quality assurance while preserving outsourcing benefits.
2Adaptability or versatility
If manufacturers maintain multiple product SKUs for different device types, then product differentiation capability improves, but inventory complexity and capital costs increase
Solution Approach 1:
The patent enables a single device platform to serve multiple product configurations through secure feature provisioning. Instead of maintaining separate physical inventories for different device types, the system activates different feature sets on the same hardware platform, allowing one device to fulfill multiple product roles based on authorized feature activation.
3Productivity
If contract manufacturers stock multiple device types for peak production periods, then order fulfillment capability improves, but risk of overstocking and inventory liability increases
Solution Approach 1:
The system enables preliminary provisioning of features during manufacturing, allowing devices to be produced in a base configuration and later upgraded to different product types through secure feature activation. This eliminates the need to pre-stock multiple device variants, as devices can be transformed into different configurations on-demand through authorized provisioning.
4Ease of operation
If traditional feature provisioning methods (wire bonding, laser fuses) are used, then feature control capability improves, but security against unauthorized modification deteriorates
Solution Approach 1:
The patent replaces mechanical provisioning methods (wire bonding, laser fuses, zero-ohm resistors) with an electronic/digital provisioning system. The new system uses cryptographic authentication and secure communication protocols between the provisioning server and device, eliminating physical manipulation vulnerabilities while maintaining feature control capability.
Data Source
AI summary
Trust between entities participating in an upgrade or enablement/disablement process is established and, to facilitate this remotely and securely, a highly tamper resistant point of trust in the system that is being produced is used. This point of trust enables a more efficient distribution system to be used. Through either a provisioning process or at later stages, i.e. subsequent to installation, manufacture, assembly, sale, etc.; the point of trust embodied as a feature controller on the device or system being modified is given a feature set (or updated feature set) that, when validated, is used to enable or disable entire features or to activate portions of the feature.