Thermal Management Mechanism With Variable-Width Cooling Channels

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Solution Overview

Problem

The increasing component density and performance levels in electronic devices lead to higher heat generation and hindered airflow, reducing thermal dissipation and device longevity.

Innovation Solution

A thermal management mechanism with varying channel widths in dissipation fins and fins arranged in sections to optimize airflow and thermal performance, including a base portion with depressions for component accommodation and a thermally-conductive cover.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If component density and performance levels are increased, then device functionality and processing power are improved, but heat generation increases and thermal dissipation is reduced

Engineering Contradiction:
Improvedevice performanceVSAvoidheat generation
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

The dissipation fins are divided into multiple sections (first section, second section, third section) with different channel widths. Each section is segmented to optimize airflow patterns and thermal dissipation efficiency for different regions of the heat sink, allowing targeted cooling of high-density component areas.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different sections of the dissipation fins have different channel widths tailored to local thermal requirements. The first section has wider channels for high-heat regions, while the third section has narrower channels for lower-heat regions, optimizing thermal management across the entire device surface.

Inventive Principle:
Principle #3Local quality

2Productivity

If component density is increased, then device functionality is improved, but airflow through the device is hindered and thermal dissipation is reduced

Engineering Contradiction:
Improvecomponent densityVSAvoidairflow
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The heat sink is segmented into multiple sections with varying channel widths. This segmentation creates optimized airflow pathways that navigate around dense component placements, maintaining adequate airflow despite high component density by providing dedicated channels in each section.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dissipation fins extend in multiple dimensions with varying channel widths across different sections. This dimensional variation creates three-dimensional airflow pathways that accommodate dense component layouts while maintaining effective thermal dissipation channels throughout the heat sink structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Temperature

If dissipation fins are arranged in sections with varying channel widths, then thermal performance is optimized, but device complexity increases

Engineering Contradiction:
Improvethermal performanceVSAvoidfin structure complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The dissipation fins are divided into discrete sections (first, second, and third sections) with different channel widths. This segmentation allows independent optimization of each section's thermal performance while maintaining a modular structure that manages complexity through systematic division rather than random complexity.

Inventive Principle:
Principle #1Segmentation

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

Enhances thermal energy removal, increases device longevity, improves performance, and reduces noise-related errors while being economical and robust.

Implementation Method 1

dissipation fins that form dissipation channels configured to increase airflow through the electronic device

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 2

a thermally-conductive cover

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS20250234493A1Apparatus including thermal management mechanism and methods of manufacturing the same
Publication Date: 2025.07.17 MICRON TECHNOLOGY INC
  • US20250234493A1 patent drawing
  • US20250234493A1 patent drawing
  • US20250234493A1 patent drawing

AI summary

An apparatus including a heat sink having two or more sections of parallel fins that define colinear channels is disclosed herein. The colinear channels are configured to direct flow of air or coolant across the heat sink and have wider channel widths closer to an inlet for the air or coolant and narrower widths closer to an outlet for the air or coolant.