Embedded Passive Component Layout for Compact Thermal Dissipation

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Solution Overview

Problem

Existing semiconductor arrangements face challenges in reducing installation space and improving heat dissipation, particularly for passive components like resistance sensors and NTC thermistors, which are often bulky and require additional fasteners for mounting.

Innovation Solution

Integrating passive components completely within a recess of a first metallization on a dielectric material layer, ensuring direct contact and eliminating the need for additional fasteners, while using metallurgical bonds or force-fit connections to enhance thermal conductivity and reduce stress.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If passive components are mounted on the substrate surface using conventional methods, then they can be easily installed and connected, but they occupy excessive installation space and have poor heat dissipation

Engineering Contradiction:
Improveinstallation spaceVSAvoidmounting complexity
Core Design Contradiction:
Volume of moving objectVSEase of manufacture

Solution Approach 1:

The passive component is nested within a recess formed in the first metallization layer, allowing the component to be integrated into the substrate structure rather than mounted on the surface. This nesting approach reduces the overall installation space while maintaining ease of manufacture through standardized recess formation processes

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The solution transitions from two-dimensional surface mounting to three-dimensional integration by forming a recess in the metallization layer. This dimensional change allows the passive component to be embedded within the substrate structure, significantly reducing the footprint and installation space required

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

2Temperature

If passive components are mounted on the substrate surface, then they can be easily connected electrically, but heat dissipation is insufficient

Engineering Contradiction:
Improveheat dissipationVSAvoidconnection structure
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

By nesting the passive component within the recess of the first metallization layer, the component achieves direct thermal contact with the highly conductive metallization structure. This embedded configuration provides superior heat dissipation pathways compared to surface mounting, while the recess structure itself serves as the connection interface, simplifying the overall connection structure

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The recess structure combines multiple functions: it provides mechanical support, establishes electrical connection, and serves as a thermal management pathway. By merging these functions into a single integrated structure rather than separate mounting hardware, the solution improves heat dissipation while reducing device complexity

Inventive Principle:
Principle #5Merging (Combining)

3Strength

If additional fasteners are used to secure passive components, then mechanical strength is improved, but manufacturing complexity and installation time increase

Engineering Contradiction:
Improvemechanical strengthVSAvoidmanufacturing efficiency
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The passive component is nested within a recess formed directly in the first metallization layer, eliminating the need for separate fasteners. The recess walls provide mechanical retention through friction and geometric interlocking, achieving sufficient mechanical strength while streamlining the manufacturing process by reducing assembly steps

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The solution extracts and eliminates the need for additional fastener components by integrating the retention function directly into the recess structure of the first metallization layer. This removal of unnecessary components simplifies manufacturing and improves productivity while maintaining adequate mechanical strength through the recess geometry

Inventive Principle:
Principle #2Taking out (Extraction)

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 reduces installation space and improves heat dissipation, enhances manufacturing efficiency, and increases the reliability and service life of the semiconductor arrangement by ensuring robust thermal connections.

Implementation Method 1

improves heat dissipation

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4430661B1Arrangement for a semiconductor device comprising at least one passive component and a substrate
Publication Date: 2025.11.12 SIEMENS AG
  • EP4430661B1 patent drawingFigure 1~3
  • EP4430661B1 patent drawingFigure 4~5
  • EP4430661B1 patent drawingFigure 6~7

AI summary

The invention relates to an arrangement (2) for a semiconductor arrangement (50) comprising at least one passive component (4) and a substrate (6), the substrate (6) comprising a dielectric material layer (8) and a first metallization (10) arranged on the dielectric material layer (8). In order to reduce the installation space of the arrangement (2) and to enable improved heat dissipation, it is proposed that the passive component (4) is arranged completely in a cutout (14) of the first metallization (10) and bears directly on the dielectric material layer (8).