Quaternary III-V Emitter Structure for Stable 800-2000 Nm Output
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Solution Overview
Problem
Current semiconductor light-emitting devices face challenges in achieving efficient light emission and stability, particularly in terms of dopant distribution and layer thickness, which affect their luminous efficiency and reliability.
Innovation Solution
The semiconductor device incorporates a quaternary III-V semiconductor material in the active region and includes specific dopant distributions in the first and second semiconductor layers, along with an insulating and conductive layer structure, to enhance light emission efficiency and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional semiconductor light-emitting devices use standard dopant distribution and layer thickness, then manufacturing is simpler, but luminous efficiency and wavelength stability are insufficient
Solution Approach 1:
The patent applies local quality by implementing different dopant concentrations and types in specific regions of the semiconductor layers. The first dopant is concentrated in the active region while the second dopant is distributed in the cladding layers, with each region optimized for its specific function. This spatial variation in dopant quality enables improved luminous efficiency and wavelength stability without requiring complex manufacturing processes.
Solution Approach 2:
The patent utilizes parameter changes by systematically varying dopant concentration, dopant type, and layer thickness across different regions of the semiconductor device. The active region has high dopant concentration for efficient light emission, while cladding layers have lower concentrations for optical confinement. This controlled variation in parameters achieves superior performance while maintaining manufacturability.
2Productivity
If the active region uses optimized quaternary semiconductor material for better light emission, then luminous efficiency improves, but manufacturing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the semiconductor device into distinct functional layers: active region with quaternary semiconductor material for light emission, and cladding layers with different composition for optical confinement. This segmentation allows each layer to be optimized independently for its specific function, achieving high light emission efficiency while managing complexity through clear functional separation.
Solution Approach 2:
The patent uses composite materials by combining quaternary semiconductor materials (containing four elements) in the active region with different semiconductor compositions in the cladding layers. This composite structure leverages the unique optical and electrical properties of each material composition to achieve superior light emission efficiency while maintaining a manageable layered architecture.
3Stability of the object's composition
If insulating and conductive layers are added to control dopant distribution, then wavelength stability improves, but device complexity increases
Solution Approach 1:
The patent applies the intermediary principle by introducing insulating and conductive layers as mediator structures between the doped semiconductor regions. These intermediate layers serve as barriers and conduits that precisely control dopant distribution during fabrication, ensuring wavelength stability. The intermediaries enable precise compositional control without requiring direct complex processing of the active region itself.
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 results in improved luminous efficiency, wavelength stability, and reliability of the semiconductor device, making it suitable for various applications including illumination, medical, and display systems.
Implementation Method 1
The active region includes a quaternary semiconductor material, and the semiconductor device emits a radiation having a peak wavelength between 800 nm and 2000 nm
Data Source
AI summary
A semiconductor device is provided, which includes an active structure, a first semiconductor layer, a second semiconductor layer, an insulating layer, and a conductive layer. The active region has two sides and includes an active region. The first semiconductor layer and the second semiconductor layer respectively located on the two sides of the active structure. The insulating layer covers a portion of the first semiconductor layer. The conductive layer covers the insulating layer and physically contacts the first semiconductor layer. The second semiconductor layer includes a first dopant and the first semiconductor layer includes a second dopant different from the first dopant. The first semiconductor layer includes a quaternary III-V semiconductor material, and the active region includes a quaternary semiconductor material, and the semiconductor device emits a radiation having a peak wavelength between 800 nm and 2000 nm.