Monolithic Semiconductor Chip Integration with Compound Material

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Solution Overview

Problem

Current semiconductor devices face challenges in enhancing thermal and electrical performance, particularly in the design and arrangement of multiple semiconductor chips, which affects the overall performance of the device.

Innovation Solution

The solution involves a device configuration with a first semiconductor chip arranged over a carrier and encapsulated with a laminate, where a second semiconductor chip is integrated over another carrier embedded within the laminate, enabling electrical coupling between the chips through conductive elements, and the use of compound semiconductor materials for improved performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple semiconductor chips are arranged in a device, then functional capability is improved, but thermal management becomes more difficult

Engineering Contradiction:
Improvefunctional capabilityVSAvoidthermal management
Core Design Contradiction:
Adaptability or versatilityVSTemperature

Solution Approach 1:

The patent transitions from planar arrangement to three-dimensional stacking of semiconductor chips. Multiple chips are arranged vertically in different layers (first chip in first layer, second chip in second layer), utilizing the vertical dimension to increase functional capability while maintaining effective thermal management through dedicated heat dissipation paths for each layer.

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

Solution Approach 2:

The device is segmented into multiple independent layers, with each semiconductor chip mounted on its own carrier substrate. The first semiconductor chip is mounted on a first carrier substrate, and the second semiconductor chip is mounted on a second carrier substrate, allowing independent thermal management for each chip while maintaining overall device functionality.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple semiconductor chips are arranged in a device, then functional capability is improved, but electrical connection complexity increases

Engineering Contradiction:
Improvefunctional capabilityVSAvoidelectrical connection complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Carrier substrates are introduced as intermediary elements between semiconductor chips. The first semiconductor chip is electrically connected to the second semiconductor chip through conductive structures formed on the carrier substrates, simplifying the electrical connection architecture compared to direct chip-to-chip connections.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

Electrical connections are established through the vertical stacking architecture. Conductive structures extend vertically through the layered structure, enabling electrical connectivity between chips in different layers without requiring complex lateral routing, thus reducing connection complexity despite increased functional capability.

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

3Area of stationary object

If semiconductor chips are closely arranged, then device area is reduced, but heat dissipation becomes more difficult

Engineering Contradiction:
Improvedevice areaVSAvoidheat dissipation
Core Design Contradiction:
Area of stationary objectVSTemperature

Solution Approach 1:

The patent utilizes vertical stacking to reduce the horizontal footprint of the device. By arranging semiconductor chips in multiple layers (first layer and second layer) rather than spreading them out in a single plane, the device achieves compact area while maintaining effective heat dissipation through vertical thermal pathways.

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

Solution Approach 2:

Each semiconductor chip is mounted on its own carrier substrate, creating segmented thermal zones. The first semiconductor chip and second semiconductor chip are thermally managed independently through their respective carrier substrates, allowing efficient heat dissipation despite close spatial arrangement in the vertical dimension.

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

This configuration enhances thermal and electrical performance by allowing efficient electrical coupling and heat dissipation between semiconductor chips, improving the operational efficiency of the device.

Implementation Method 1

the second semiconductor material comprises a compound semiconductor

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

enhances thermal and electrical performance by allowing efficient electrical coupling and heat dissipation

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS10763246B2Device including a semiconductor chip monolithically integrated with a driver circuit in a semiconductor material
Publication Date: 2020.09.01 INFINEON TECHNOLOGIES AG
  • US10763246B2 patent drawing
  • US10763246B2 patent drawing
  • US10763246B2 patent drawing

AI summary

A device includes a driver circuit, a first semiconductor chip monolithically integrated with the driver circuit in a first semiconductor material, and a second semiconductor chip integrated in a second semiconductor material. The second semiconductor material is a compound semiconductor.