Optoelectronic Semiconductor Component With Carrier Thickness Variation

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Solution Overview

Problem

Existing semiconductor components are limited by the space requirements when mounting both semiconductor chips and electronic components on the same surface, leading to compromises in size and emission properties.

Innovation Solution

A carrier with distinct regions of varying thickness is used, where the optoelectronic semiconductor chip is placed on the thicker region on top and the electronic component is positioned on the thinner region underneath, allowing for a compact design with reduced lateral extent and utilizing the underside for electrical contact and mounting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If both the optoelectronic semiconductor chip and electronic component are mounted on the same surface of the carrier, then the electrical connection between them is simplified, but the lateral extent of the component increases

Engineering Contradiction:
Improveelectrical connection complexityVSAvoidlateral extent of component
Core Design Contradiction:
Device complexityVSArea of stationary object

Solution Approach 1:

The patent transitions from a two-dimensional mounting arrangement (both components on the same surface) to a three-dimensional arrangement by utilizing the thickness dimension of the carrier. The carrier is designed with a first region having greater thickness than a second region, allowing the optoelectronic semiconductor chip to be mounted on the upper side in the thicker first region while the electronic component is mounted on the underside in the thinner second region. This vertical separation reduces the lateral footprint while maintaining electrical connectivity through the carrier's conductive structure.

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

2Volume of moving object

If the carrier thickness is increased to accommodate both components, then the vertical space is sufficient, but the overall vertical extent of the component increases

Engineering Contradiction:
Improvespace for component mountingVSAvoidvertical extent of component
Core Design Contradiction:
Volume of moving objectVSLength of stationary object

Solution Approach 1:

Instead of uniformly increasing the carrier thickness throughout, the patent applies local quality by creating regions with different thicknesses. The first region has greater thickness to accommodate the optoelectronic semiconductor chip on the upper side, while the second region has reduced thickness for mounting the electronic component on the underside. This localized variation in thickness provides the necessary mounting space for both components without proportionally increasing the overall vertical extent of the entire component assembly.

Inventive Principle:
Principle #3Local quality

3Length of stationary object

If the carrier is made thinner to reduce vertical extent, then the component is more compact, but there is insufficient space for both components and their connections

Engineering Contradiction:
Improvevertical extent of componentVSAvoidspace for component mounting
Core Design Contradiction:
Length of stationary objectVSVolume of moving object

Solution Approach 1:

The patent segments the carrier into distinct regions with different functional characteristics. The first region is designed with greater thickness for mounting the optoelectronic semiconductor chip, while the second region has reduced thickness for the electronic component. This segmentation allows the carrier to provide adequate mounting space for both components while maintaining a compact overall vertical profile, as each region is optimized for its specific mounting requirements rather than requiring uniform thickness throughout.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2438613B1Optoelectronic semiconductor component
Publication Date: 2019.07.03 OSRAM OPTO SEMICON GMBH & CO OHG
  • EP2438613B1 patent drawingFigure 1a~1b
  • EP2438613B1 patent drawingFigure 2a~2b
  • EP2438613B1 patent drawingFigure 2c

AI summary

An optoelectronic semi-conductor component is provided, comprising: a first carrier (1A) which has a top surface (11A) and a lower surface (12A) opposite the top surface (11A) of the first carrier, wherein the first carrier (1A) has a first and a second region (B1, B2); at least one optoelectronic semi-conductor chip (2) disposed on the surface (11A) on the first carrier (1A); at least one electronic component (3) disposed in the second region (B2) on the lower surface (12A) of the first carrier (1A), wherein the first region (B1) has a larger thickness towards the vertical direction than the second region (B2), on the lower surface (12A) of the first region (B1) it towers above the second region (B2) towards the vertical direction, the at least one electrical component (3) is connected to the at least one optoelectronic semi-conductor chip (2) in an electrically conducting manner.