Die-Level Thermal Control Using Embedded Sensors and Throttling

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current electronics systems face thermal dissipation challenges due to increased performance requirements, leading to localized heat buildup that exceeds the capabilities of existing thermal management techniques, potentially causing reduced performance and system failure.

Innovation Solution

An electrical device with integrated temperature sensors and a controller that adjusts operating parameters, such as clock speed, bandwidth, or component functionality, to manage thermal loads by detecting thermal loads at key points and redistributing thermal loads across the device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If performance requirements are increased to drive higher capabilities, then productivity is improved, but thermal loads increase causing localized heat buildup that exceeds thermal dissipation capacity

Engineering Contradiction:
ImproveperformanceVSAvoidthermal loads
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

The patent implements dynamic thermal management by continuously monitoring temperature sensors and adjusting operating parameters in real-time. The system dynamically throttles clock speeds, redistributes workloads, and reconfigures signal paths based on current thermal conditions, allowing the device to adapt its performance characteristics to maintain operational safety while maximizing productivity under varying thermal loads.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters such as clock speed, bandwidth allocation, and component activation states in response to thermal conditions. By modifying these parameters dynamically, the system can reduce thermal generation during high-temperature periods while maintaining optimal performance during cooler operation, effectively resolving the contradiction between high productivity and thermal management.

Inventive Principle:
Principle #35Parameter changes

2Weight of moving object

If size and weight limitations are imposed, then device compactness is improved, but the ability to control thermal performance is reduced

Engineering Contradiction:
ImproveweightVSAvoidthermal performance control
Core Design Contradiction:
Weight of moving objectVSReliability

Solution Approach 1:

The patent embeds temperature sensors and control logic directly within the die structure, nesting monitoring and control functions inside the existing device architecture. This nested approach allows comprehensive thermal monitoring and control capability to be integrated without adding significant external components, thereby maintaining compact size while enhancing thermal performance control and reliability.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The controller is designed to perform multiple functions including thermal monitoring, performance optimization, and system protection. By making the control system universal and multi-functional, the patent achieves comprehensive thermal management capability within a compact integrated structure, resolving the contradiction between device compactness and thermal control effectiveness.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If thermal loads exceed the thermal rating, then device performance is maintained, but reliability is reduced due to loss of anticipated performance levels and possible system failure

Engineering Contradiction:
ImproveperformanceVSAvoidsystem reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements a closed-loop feedback system where temperature sensors continuously monitor thermal conditions and provide real-time data to the controller. The controller processes this feedback and adjusts operating parameters accordingly, creating a self-regulating system that prevents thermal runaway and maintains both performance and reliability by responding dynamically to thermal conditions.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system proactively manages thermal conditions by detecting temperature trends and taking preventive actions before thermal ratings are exceeded. By implementing anticipatory thermal management, the system can throttle performance or redistribute loads in advance, cushioning against potential thermal failures and maintaining system reliability while preserving maximum safe performance.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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

This approach effectively maintains safe thermal operating parameters, prevents overheating, and optimizes performance by dynamically shifting thermal loads and adjusting device performance in real-time, thereby enhancing the reliability and efficiency of electrical devices.

Implementation Method 1

The plurality of temperature sensors are configured to detect thermal loads at respective portions of the die

Methodology Applied
Scientific EffectThermal detection: Thermocouple

Data Source

PatentUS11474576B1Electrical device with thermally controlled performance
Publication Date: 2022.10.18 ROCKWELL COLLINS INC
  • US11474576B1 patent drawing
  • US11474576B1 patent drawing
  • US11474576B1 patent drawing

AI summary

An electrical device with thermally controlled performance is disclosed. The electrical device includes at least one die with a plurality of device components disposed upon or at least partially embedded within the die. The electrical device further includes a plurality of signal paths interconnecting the plurality of device components. The electrical device further includes a plurality of temperature sensors disposed upon or at least partially embedded within the die. The temperature sensors are configured to detect thermal loads at respective portions of the die. The electrical device further includes at least one controller disposed upon or at least partially embedded within the die. The controller is configured to adjust one or more operating parameters for one or more of the device components based on the thermal loads detected by the temperature sensors.