Optoelectronic Semiconductor Chip Barrier Segmentation
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Solution Overview
Problem
Existing optoelectronic semiconductor chips face challenges in achieving a homogeneous radiation characteristic due to crosstalk between conversion elements, leading to spatial color inhomogeneities and inefficient radiation management.
Innovation Solution
The design incorporates a barrier between conversion elements to prevent crosstalk, with separately controllable emission regions and conversion elements that can adjust the wavelength and color of emitted radiation, using a semiconductor body with a main plane of extension and a two-dimensional lattice structure to optimize radiation exit and minimize chip thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conversion elements are arranged closely together to reduce chip area, then device area is reduced, but crosstalk between conversion elements occurs leading to spatial color inhomogeneities
Solution Approach 1:
The patent introduces barrier structures that segment the chip into separate radiation management zones. These barriers divide the conversion element array into independent segments, preventing crosstalk between adjacent conversion elements while maintaining close spacing. This segmentation allows each zone to manage its radiation independently, ensuring homogeneous radiation characteristics across the entire chip surface.
Solution Approach 2:
The barrier structures act as intermediary elements between conversion elements. These barriers absorb or redirect stray radiation before it can cause crosstalk between adjacent conversion elements. By introducing this intermediary layer, the patent maintains close spacing of conversion elements for area efficiency while eliminating the harmful crosstalk effect.
2Manufacturing precision
If conversion elements are spaced apart to prevent crosstalk, then radiation characteristic homogeneity is improved, but device area increases
Solution Approach 1:
Instead of spacing out conversion elements, the patent uses barriers to create segmented zones. This allows conversion elements to remain closely spaced for area efficiency while the barriers prevent crosstalk by dividing the chip into independent radiation management sections. The segmentation approach achieves homogeneity without increasing chip area.
Solution Approach 2:
The barrier structures serve as intermediary elements that enable close spacing of conversion elements while preventing crosstalk. These intermediaries absorb or redirect stray radiation, allowing the conversion elements to be positioned close together for area efficiency while maintaining homogeneous radiation characteristics through effective crosstalk prevention.
3Adaptability or versatility
If multiple conversion elements are used to adjust wavelength and color, then adaptability of radiation properties is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple conversion elements with different wavelength conversion properties into a single integrated chip structure. By merging these elements and coordinating their operation through the barrier-based segmentation, the system achieves versatile wavelength and color control while managing complexity through unified structural design rather than separate systems.
Solution Approach 2:
The patent enables dynamic control of radiation properties by independently controlling multiple conversion elements. The barrier structures allow each conversion element to be controlled separately, enabling real-time adjustment of wavelength and color output. This dynamic control capability provides adaptability while the integrated structure manages the complexity of multiple controllable elements.
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 ensures a homogeneous radiation characteristic by preventing crosstalk and allowing independent control of emission regions, enabling the production of optoelectronic semiconductor chips with adjustable color and spectrum properties.
Implementation Method 1
at least two conversion elements (13) which are arranged to convert the wavelength of the electromagnetic radiation emitted from the active region during operation
Implementation Method 2
The barrier may have a light reflecting or scattering material such as TiO2. The barrier may appear white, for example.
Data Source
AI summary
An optoelectronic semiconductor chip may include an active region configured to emit electromagnetic radiation during operation of said optoelectronic semiconductor chip. The optoelectronic semiconductor chip comprises conversion elements arranged to convert the wavelength of the electromagnetic radiation emitted by the active region during operation, and at least one barrier at least partially impermeable to the electromagnetic radiation emitted by the active region. The barrier is disposed in a lateral direction between the conversion elements, the lateral direction being parallel to the main extension plane of the semiconductor body, and the barrier extending transversely to the lateral direction. The active region has at least two emission regions which can be driven separately from each other, and each of the conversion elements is disposed in a radiation direction of the electromagnetic radiation emitted from one of the emission regions. A method for manufacturing an optoelectronic semiconductor chip is also disclosed.