Semiconductor Chip Ring-Shaped Outer Region Heat Distribution

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Solution Overview

Problem

Semiconductor chips face uneven temperature distribution during operation, leading to localized overheating, which restricts the reduction of chip size due to waste heat generation, particularly in power semiconductor chips.

Innovation Solution

A semiconductor chip design featuring a semiconductor body with an inner region and a ring-shaped outer region, where a controllable first semiconductor component is integrated in the inner region and a second electronic component is monolithically integrated in the outer region, with the second load path electrically not connected in parallel to the first load path, effectively distributing heat more evenly across the chip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If the chip size is reduced, then the integration density is improved, but the temperature distribution becomes more uneven and localized overheating occurs

Engineering Contradiction:
Improvechip sizeVSAvoidtemperature distribution
Core Design Contradiction:
Area of moving objectVSTemperature

Solution Approach 1:

The chip is divided into an inner region and an outer region with distinct functional components. The inner region contains high-power components while the outer region contains low-power components, segmenting the heat generation sources to prevent concentrated overheating and enable smaller overall chip size.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the chip are assigned different functional qualities - the inner region is optimized for high-power handling while the outer region handles low-power functions. This local differentiation allows efficient space utilization and heat management, enabling reduced chip size without compromising temperature distribution.

Inventive Principle:
Principle #3Local quality

2Productivity

If high-power components are concentrated in the center, then the circuit functionality is improved, but the heat concentration causes reliability issues

Engineering Contradiction:
Improvecircuit functionalityVSAvoidchip reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The chip structure is segmented into inner and outer regions with different functional assignments. High-power components that generate heat are segregated into the inner region, while low-power components are placed in the outer region, preventing heat concentration and improving reliability while maintaining circuit functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The inner region acts as an intermediary zone that contains and isolates heat-generating components. This segmentation creates a thermal buffer zone that protects the outer region and overall chip structure from excessive heat, thereby improving reliability without sacrificing functional performance.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS9252140B2Semiconductor chip and semiconductor arrangement
Publication Date: 2016.02.02 INFINEON TECHNOLOGIES AG
  • US9252140B2 patent drawing
  • US9252140B2 patent drawing
  • US9252140B2 patent drawing

AI summary

One aspect of the invention relates to a semiconductor chip with a semiconductor body. The semiconductor body has an inner region and a ring-shaped outer region. An electronic structure is monolithically integrated in the inner region and has a controllable first semiconductor component with a first load path and a first control input for controlling the first load path. Further, a ring-shaped second electronic component is monolithically integrated in the outer region and surrounds the inner region. Moreover, the second electronic component has a second load path that is electrically not connected in parallel to the first load path.