Optoelectronic Device Series Electrode Layout for High Voltage
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Solution Overview
Problem
The existing light-emitting diode (LED) arrays face challenges in efficiently managing high driving voltages and varying electrode layouts to meet customer requirements while maintaining electrical efficiency and reducing production costs.
Innovation Solution
The design of an optoelectronic device with a substrate featuring semiconductor units connected in series, where each unit comprises a first and second semiconductor layer with an active region, and electrodes with extensions for electrical connection, allowing for flexible arrangement and efficient current distribution across multiple columns with varying numbers and shapes of semiconductor units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If LEDs are arranged in an array type light-emitting element to achieve high driving voltage, then the driving voltage is increased, but the volume and weight of the LED increase
Solution Approach 1:
Multiple semiconductor units are integrated onto a single substrate to form an array-type light-emitting element. The first and second electrodes connect multiple semiconductor units in series, achieving high driving voltage while maintaining a compact form factor, thus resolving the contradiction between increasing driving voltage and increasing volume.
2Adaptability or versatility
If various kinds of electrode layout are designed to satisfy customer requirements, then customer requirements are met, but the device complexity increases
Solution Approach 1:
The electrode structure is designed with extensions that can adapt to different semiconductor unit arrangements. The first electrode extends from the first semiconductor unit to the second semiconductor unit, and the second electrode similarly connects units, providing a universal connection scheme that works for various layouts without requiring complex custom designs for each configuration.
3Power
If multiple semiconductor units are connected in series to achieve high driving voltage, then the driving voltage is increased, but the manufacturing precision requirements increase
Solution Approach 1:
The first and second electrodes are formed with extensions that protrude beyond the individual semiconductor units before the units are fully assembled. This preliminary extension allows for easier alignment and connection during the manufacturing process, reducing the precision requirements for connecting multiple semiconductor units in series while still achieving the desired high driving voltage.
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 enables the optoelectronic device to operate effectively under specific driving voltages and areas, enhancing electrical efficiency and ease of production by allowing for customizable electrode layouts and efficient current spreading.
Implementation Method 1
each semiconductor unit comprises a first semiconductor layer, a second semiconductor layer, and an active region interposed between thereof
Data Source
AI summary
An optoelectronic device comprises a substrate; a groove on the substrate; a plurality of semiconductor units on the substrate and separated by the groove, wherein each semiconductor unit comprises a first semiconductor layer, a second semiconductor layer, and an active region interposed between the first semiconductor layer and the second semiconductor layer; a connecting part crossing the groove for connecting two of the plurality of semiconductor units, wherein the connecting part comprises one end on the first semiconductor layer and another end on the second semiconductor layer; a first electrode comprising a plurality of first extensions jointly connected to the one end of the connecting part; and a second electrode comprising a plurality of second extensions jointly connected to the another end of the connecting part, wherein an amount of the plurality of first extensions is different from an amount of the plurality of second extensions.