Electronic Component Insulating Film UV Protection
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Solution Overview
Problem
Conventional electronic components with photosensitive glass suffer from discoloration due to UV light exposure, leading to a defective appearance during visual inspection.
Innovation Solution
An electronic component design featuring a glass body with a photosensitizer, a conductor, and a terminal electrode, where an insulating film is applied on the outer surface to reflect or absorb light in the photosensitive wavelength range, reducing photooxidation and maintaining a good outward appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If photosensitive glass is used in the electronic component, then the glass body can be processed and shaped effectively, but the glass body undergoes photooxidation and discoloration when exposed to UV light
Solution Approach 1:
An insulating film is introduced as an intermediary layer between the external environment (UV light) and the photosensitive glass body. This film reflects or absorbs UV light in the photosensitive wavelength range, preventing direct irradiation of the glass body while allowing the glass to maintain its photosensitive properties for manufacturing processes.
Solution Approach 2:
The patent converts the harmful UV light that causes photooxidation into a beneficial protective mechanism by using the insulating film's light-reflecting or light-absorbing properties. The same UV light that would harm the glass is now blocked by the insulating film, turning a harmful environmental factor into a controllable parameter.
2Reliability
If the electronic component is exposed to UV light for processing or operation, then the photosensitizer can perform its function, but Ce3+ in the glass is photooxidized causing yellowing and defective appearance
Solution Approach 1:
The insulating film is selectively applied to specific surfaces of the glass body (top surface and/or side surfaces) where UV light exposure occurs during mounting or operation. This localized protection allows the photosensitizer to function where needed while preventing discoloration in visually critical areas.
Solution Approach 2:
The insulating film serves as a protective intermediary that allows the photosensitizer to maintain its functionality while being shielded from harmful UV exposure. The film's optical properties (reflection or absorption in photosensitive wavelength range) enable it to filter harmful radiation while permitting necessary light interaction for photosensitizer operation.
3Device complexity
If no protective coating is applied, then the manufacturing process remains simple, but the electronic component develops discoloration and fails visual inspection
Solution Approach 1:
The insulating film serves as a relatively simple, thin protective layer that can be applied during manufacturing. While it adds a structural element, the film is thin and can be integrated into existing coating processes, providing cost-effective protection against photooxidation without significantly increasing overall device complexity.
Solution Approach 2:
The electronic component becomes a composite structure combining the photosensitive glass body with an insulating film layer. This composite material approach allows the glass to maintain its photosensitive properties while the film provides UV protection, creating a multi-functional component that addresses both manufacturing and durability requirements.
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
The insulating film effectively reduces discoloration of the glass body, ensuring a good outward appearance of the electronic component even under light exposure, both before and after mounting on a board.
Implementation Method 1
an insulating film arranged above the outer surface of the glass body and reflecting or absorbing light in a photosensitive wavelength range of the photosensitizer contained in the glass body
Implementation Method 2
an insulating film arranged above the outer surface of the glass body and reflecting or absorbing light in a photosensitive wavelength range of the photosensitizer contained in the glass body
Implementation Method 3
Ce3+ in the photosensitive glass may be photooxidized to cause discoloration (yellowing) in the photosensitive glass
Data Source
AI summary
An electronic component comprising a glass body containing a photosensitizer; a conductor as at least a part of an electric element, arranged on the glass body; a terminal electrode as a terminal of the electric element, arranged above an outer surface of the glass body, with the terminal electrode being electrically connected to the conductor; and an insulating film arranged above the outer surface of the glass body. The insulating film reflects or absorbs light in a photosensitive wavelength range of the photosensitizer contained in the glass body.