Camera Module Coil Member Bridge Structure for Reliable Separation
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Solution Overview
Problem
Conventional coil members for camera modules face manufacturing challenges due to post-treatment process failures and reduced efficiency during separation, requiring improved reliability and easier manufacturing methods.
Innovation Solution
A coil member design featuring a substrate with bridge portions and shield layers on both surfaces, allowing for easy cutting and separation without additional devices or processes, enhancing storage and reliability by preventing external moisture and impurity penetration and adhesion failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a plurality of coil members are manufactured on a large-area substrate and then separated using a post-treatment process, then mass production is achieved, but process failures occur and efficiency is reduced
Solution Approach 1:
The substrate is divided into multiple regions, each forming a separate coil member structure. The bridge portions connect adjacent coil members during manufacturing but can be easily separated when individual coil members are needed, enabling both mass production and reliable separation.
Solution Approach 2:
The bridge portions are pre-formed as integral parts of the substrate structure during the manufacturing process. This preliminary formation of separation structures eliminates the need for complex post-treatment separation processes, improving both efficiency and reliability.
2Manufacturing precision
If conventional laser cutting is used to separate coil members, then precise cutting is achieved, but additional equipment and post-treatment processes are required
Solution Approach 1:
The bridge portions are designed to be easily separable by human force without requiring laser cutting equipment or other specialized devices. The structure itself provides the separation mechanism, eliminating the need for additional separation equipment and post-treatment processes.
3Ease of operation
If bridge portions are added to the substrate, then easy separation is achieved, but moisture and impurity penetration risks increase
Solution Approach 1:
A shield layer is formed on the bridge portions to create a composite structure that combines the ease of separation provided by the bridge portion design with the protective barrier function of the shield layer. This composite structure prevents moisture and impurity penetration while maintaining easy separability.
4Reliability
If shield layers are disposed on bridge portions, then protection against moisture and impurities is achieved, but manufacturing complexity increases
Solution Approach 1:
The shield layer formation process is merged with the existing manufacturing process by forming the shield layer directly on the bridge portions during substrate fabrication. This integration approach adds minimal manufacturing steps while providing comprehensive protection against moisture and impurities.
Data Source
AI summary
A coil member according to an embodiment comprises: a substrate having a first surface and a second surface opposite to the first surface; a first circuit pattern disposed on the first surface; and a plurality of bridge portions protruding from an end of the substrate, wherein the bridge portions are integrally formed with the substrate, and a shield layer is disposed on the bridge portions.