Dynamic Operating Parameter Adjustment for Aging Electronic Circuits

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Solution Overview

Problem

Electronic circuits face operational challenges due to aging, including changes in threshold voltage and transconductance, which require adjustments in supply voltage, and degradation mechanisms like NBTI and HCI, leading to reduced performance and battery life.

Innovation Solution

A method for collecting and adjusting for aging in electronic circuits involves receiving aging information over a network, generating statistics, and updating operating parameters such as voltage and frequency to ensure optimal performance and extended life expectancy, using dedicated aging circuits and management programs to monitor and adjust device settings based on usage and environmental data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the device operates at high performance parameters initially, then productivity is improved, but reliability deteriorates due to accelerated aging

Engineering Contradiction:
Improvedevice performanceVSAvoiddevice life expectancy
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements dynamic adjustment of operating parameters based on real-time aging information. The system transitions from static fixed parameters to dynamic parameters that change over time. Aging detection circuits continuously monitor circuit degradation, and the system adjusts operating parameters (such as voltage, frequency, or clock speed) accordingly to maintain optimal performance while extending device life expectancy.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent employs feedback mechanisms where aging information is fed back into the system to modify operating parameters. Aging detection circuits provide continuous feedback on circuit degradation levels, and this feedback is used to adjust operating parameters in real-time. This closed-loop control ensures that the device operates within safe parameters while maximizing performance throughout its lifecycle.

Inventive Principle:
Principle #23Feedback

2Reliability

If operating parameters are adjusted to compensate for aging, then reliability is improved, but device complexity increases due to monitoring and adjustment mechanisms

Engineering Contradiction:
Improvedevice life expectancyVSAvoidaging monitoring system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements self-service mechanisms where the device monitors its own aging and adjusts its own operating parameters without external intervention. Aging detection circuits are integrated within the device to self-diagnose degradation levels, and the system automatically adjusts parameters accordingly. This eliminates the need for complex external monitoring and control systems.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent merges aging detection functionality with the existing device architecture by integrating aging detection circuits within the same circuit board or chip. Rather than adding separate external monitoring systems, the aging detection and parameter adjustment functions are combined into the device's internal structure, reducing overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If aging information is collected and processed, then adaptability is improved, but loss of time increases due to data collection and processing requirements

Engineering Contradiction:
Improveparameter adjustment capabilityVSAvoiddata processing time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent implements preliminary action by pre-configuring aging detection circuits and parameter adjustment mechanisms before the device is deployed. The system is pre-programmed with aging compensation algorithms and parameter ranges, allowing it to immediately begin monitoring and adjusting without requiring extensive initial data collection or processing time.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent ensures continuity of useful action by implementing real-time aging monitoring and parameter adjustment without interrupting device operation. The aging detection circuits continuously monitor circuit conditions, and parameter adjustments are made seamlessly during normal operation, eliminating downtime or delays associated with periodic inspections or reconfiguration.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS8671170B2Modifying operating parameters of a device based on aging information
Publication Date: 2014.03.11 APPLE INC
  • US8671170B2 patent drawing
  • US8671170B2 patent drawing
  • US8671170B2 patent drawing

AI summary

Monitoring aging information for multiple devices. Aging information of the devices may be received. Statistics regarding the multiple devices may be determined based on the aging information. For at least some of the devices, update information may be determined based on the respective aging information. The update information may include modifications to operating parameters of the devices. For example, the devices may operate according to initial parameters that are above sustainable parameters and the update information may lower the operating parameters based on the aging information.