Optical/Electrical Hybrid Substrate Mirror Support
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Solution Overview
Problem
Existing optical/electrical hybrid substrates face challenges in forming inclined surfaces with high accuracy, leading to significant optical signal transmission loss due to mirrors formed on these surfaces.
Innovation Solution
The introduction of mirror supports made of glass or silicon, bonded to the substrate with an adhesive, allows for the formation of smooth inclined surfaces for mirror placement, reducing transmission loss by ensuring accurate angles and efficient reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If mirrors are formed directly on inclined surfaces of the optical waveguide, then the device complexity is reduced, but the manufacturing precision of the inclined surfaces deteriorates, leading to significant optical signal transmission loss
Solution Approach 1:
The patent divides the system into separate components: the optical waveguide and the mirror support are manufactured independently. The mirror support with its precisely formed inclined surface is then bonded to the optical waveguide. This segmentation allows each component to be optimized separately, achieving both structural simplicity and high manufacturing precision for the inclined surface.
Solution Approach 2:
The mirror support acts as an intermediary component between the optical waveguide and the mirror. It provides a stable platform with a precisely formed inclined surface (45 degrees) that enables accurate mirror placement without requiring the optical waveguide itself to have the inclined surface, thus solving the manufacturing precision problem.
2Ease of manufacture
If the inclined surface angle is not precisely controlled, then the ease of manufacture is improved, but the optical signal transmission loss increases due to inefficient reflection
Solution Approach 1:
The inclined surface with the precise 45-degree angle is formed in advance on the mirror support before the mirror is deposited. This preliminary formation of the accurate inclined surface ensures that when the mirror is placed, it will reflect optical signals efficiently at the correct angle, preventing energy loss while maintaining ease of manufacturing through standardized processes.
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 reduces optical signal transmission loss by creating smooth reflection surfaces on the mirrors, enhancing the accuracy and efficiency of signal reflection.
Implementation Method 1
a mirror support bonded onto the wiring substrate with an adhesive
Implementation Method 2
a mirror which reflects an optical signal and is formed on an inclined surface of the mirror support
Data Source
AI summary
An optical/electrical hybrid substrate is provided. The optical/electrical substrate includes: a wiring substrate; an optical waveguide disposed on the wiring substrate and configured to transmit an optical signal; a mirror support bonded onto the wiring substrate with an adhesive and being made of glass or silicon; and a mirror which reflects the optical signal and which is formed on an inclined surface of the mirror support.