Optical Fiber Segmentation for Thyristor Handling
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Solution Overview
Problem
The handling of semiconductor devices with direct light-triggered thyristors is inconvenient due to embedded optical fibers, which become difficult to manage as the devices are installed in higher-voltage units and require careful handling and replacement, especially when the optical fibers are damaged.
Innovation Solution
Incorporating an inter-optical-fiber relaying unit that connects a first optical fiber to a second fiber, allowing the optical gate signal to be transmitted between them, thereby reducing the length of the optical fibers and facilitating easier handling and replacement without disassembling the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the optical fiber is structurally embedded in the direct light-triggered thyristor, then the thyristor can be reliably triggered by optical signal, but the handling and maintenance of the device becomes inconvenient
Solution Approach 1:
The optical fiber connection is segmented into two parts: a first optical fiber structurally embedded in the thyristor for reliable signal transmission, and a second optical fiber that is detachably connected to extend the fiber path. This segmentation allows the embedded portion to maintain reliability while the detachable portion improves handling convenience during manufacturing and maintenance.
Solution Approach 2:
An inter-optical-fiber relaying unit is introduced as an intermediary component to connect the first and second optical fibers. This mediator enables the optical gate signal to be transmitted from the embedded fiber to the extended fiber, resolving the contradiction by providing both stable signal transmission through the embedded connection and easy handling through the detachable extension.
2Adaptability or versatility
If the optical fiber length is increased to reach higher-voltage units, then the device can be installed in higher-voltage applications, but the handling difficulty increases
Solution Approach 1:
The optical fiber system is divided into a first optical fiber of fixed length embedded in the thyristor and a second optical fiber that can be selectively connected to extend the total length. This allows adaptation to higher-voltage units requiring longer fiber paths while keeping the handling portion separate and manageable, thus resolving the contradiction between adaptability and ease of operation.
3Reliability
If the optical fiber is structurally embedded, then the thyristor achieves stable optical triggering, but replacing a damaged fiber requires disassembling the entire device
Solution Approach 1:
The optical fiber connection is segmented into an embedded first optical fiber for stable triggering and a detachable second optical fiber for easy replacement. When the fiber is damaged, only the second optical fiber needs to be replaced without disassembling the device, while the embedded first fiber maintains stable optical triggering.
Solution Approach 2:
The inter-optical-fiber relaying unit serves as an intermediary that enables the detachable second optical fiber to be connected to the embedded first optical fiber. This intermediary structure allows the embedded fiber to maintain stable triggering while the detachable fiber can be easily replaced, resolving the contradiction between reliability and ease of repair.
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 simplifies the handling and reduces the risk of damage to optical fibers during manufacturing, assembly, and disassembly, allowing for easier maintenance and operation of the semiconductor device by minimizing the length of the optical fibers connected to the direct light-triggered thyristors.
Implementation Method 1
a first optical fiber connected to the direct light-triggered thyristor and through which the optical gate signal is transmitted
Data Source
AI summary
A semiconductor device includes a direct light-triggered thyristor triggered by an optical gate signal, a first optical fiber connected to the direct light-triggered thyristor and through which the optical gate signal is transmitted, a second optical fiber used to extend the first optical fiber, and a inter-optical-fiber relaying unit configured to connect the first optical fiber to the second optical fiber and to input the optical gate signal output from the second optical fiber to the first optical fiber.