Optical Module Adhesive With Photochromic Misalignment Detection
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Solution Overview
Problem
Existing methods for detecting optical module misalignment in manufacturing and field failures are inefficient and difficult to visualize without additional equipment, particularly in flip chip assembly processing.
Innovation Solution
Incorporating a photochromic reactive agent into the adhesive bonding agent used for attaching optical components, which changes color upon exposure to light when misalignment occurs, allowing for visual identification of misalignment without additional equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional adhesive bonding agents are used for attaching optical components, then the assembly process is simple, but misalignment cannot be visually detected without additional equipment
Solution Approach 1:
The patent incorporates photochromic reactive agents into the adhesive bonding agent that undergo color changes when exposed to light from misaligned optical components. This allows visual detection of misalignment through color indication without requiring additional detection equipment, thereby improving measurement precision while maintaining device simplicity
Solution Approach 2:
The photochromic reactive agent acts as an intermediary between the light from misaligned optical components and the human observer. The agent absorbs the light and transforms it into a visible color change, serving as a mediator that makes misalignment detectable without complex equipment
2Difficulty of detecting and measuring
If additional detection equipment is used to identify misalignment, then detection accuracy improves, but the process becomes more complex and time-consuming
Solution Approach 1:
The adhesive bonding agent with photochromic reactive agents performs the detection function itself without requiring external detection equipment. The system is self-sufficient, using the light from the optical components themselves to trigger the color change indication, thereby eliminating the need for additional equipment and reducing detection time
Solution Approach 2:
The color change provides immediate visual feedback about misalignment, allowing operators to quickly identify issues without time-consuming measurements or complex equipment operation, significantly reducing detection time while improving ease of detection
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
Provides an easy and efficient method for visually identifying optical module misalignment during manufacturing, facilitating timely detection and correction of assembly issues.
Implementation Method 1
a photochromic reactive agent exposed to light from the first component in an event of the first and second components being attached in a misaligned condition whereupon a color change of the photochromic reactive agent resulting from exposure of the photochromic reactive agent to the light is indicative of the misaligned condition
Data Source
AI summary
An optical assembly is provided and includes a first component configured to output light, a second component and an adhesive bonding agent to which a photochromic reactive agent is added and by which the first and second components are attached such that the first component is disposed to output the light toward the second component and such that the photochromic reactive agent is exposed to the light in an event of the first and second components being attached in a misaligned condition whereupon a color change of the photochromic reactive agent resulting from exposure of the photochromic reactive agent to the light is indicative of the misaligned condition.