Wavelength Tunable Interference Filter Substrate Protection
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Solution Overview
Problem
The manufacturing of wavelength tunable interference filters faces challenges in preventing damage to wire groups during the breaking process, as existing methods often result in excessive gap formation leading to inevitable damage to the wire group.
Innovation Solution
The implementation of protruding portions on the electrode forming surface of the second substrate, which allows the first substrate to contact these protrusions instead of the connection electrodes during breaking, thereby reducing the risk of damage to the connection electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gap is formed below the wire group to prevent damage during breaking, then damage to the wire group is reduced, but the gap exceeds the interference amount of the color filter breaking portion, making damage to the wire group inevitable when interference exceeds the setting value
Solution Approach 1:
The patent introduces an intermediary structure (protruding portions or recesses) between the breaking portion and the wire group/connection electrodes. This intermediary element absorbs the impact during breaking, preventing direct contact between the breaking portion and the wire group or connection electrodes, thus protecting them from damage while maintaining precise dimensional control.
Solution Approach 2:
The patent segments the substrate structure by forming protruding portions or recesses that create distinct zones: a breaking zone where the substrate is intentionally weakened, and a protected zone where the wire group and connection electrodes are shielded. This segmentation allows controlled breaking in one area while protecting critical components in another area.
2Ease of operation
If connection electrodes are formed on the second substrate, then electrical connection is achieved, but the connection electrodes are vulnerable to damage during the breaking process
Solution Approach 1:
The patent performs preliminary action by forming protruding portions or recesses on the substrate before the breaking process. This pre-formed structure serves as a protective mechanism that is already in place when breaking occurs, preventing damage to the connection electrodes that have been formed on the substrate.
Solution Approach 2:
The patent implements beforehand cushioning by creating protruding portions or recesses that act as a cushioning structure during breaking. This structure absorbs the mechanical stress and prevents direct transmission of breaking forces to the connection electrodes, protecting them from damage while maintaining their electrical connection function.
3Reliability
If additional manufacturing steps are added to protect connection electrodes during breaking, then damage to connection electrodes is prevented, but manufacturing complexity and cost increase
Solution Approach 1:
The patent merges the protective function with the substrate structure itself by forming protruding portions or recesses as integral parts of the substrate during the same manufacturing process. This eliminates the need for separate protective components or additional manufacturing steps, as the substrate structure serves both its primary function and the protective function simultaneously.
Solution Approach 2:
The patent implements self-service by designing the substrate to provide its own protection during breaking. The protruding portions or recesses are formed as part of the substrate structure, allowing the substrate to protect its own connection electrodes without requiring external protective measures or additional manufacturing processes.
Data Source
AI summary
A wavelength tunable interference filter, an optical apparatus, and an optical component include a first substrate, which includes a first optical film and a first driving electrode, and a second substrate, which includes a support portion that supports the first substrate, a second optical film, and a second driving electrode. The second substrate includes an external connection electrode extending to an outer side of the support portion, and includes an electrode forming surface on which the external connection electrode is disposed. A plurality of protruding portions protruding from the electrode forming surface are formed so as to be arrayed in a direction crossing the extending direction of the external connection electrode.