Chip Module Particle Protection via Rib Alignment
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Solution Overview
Problem
Current camera module designs lack a specific mechanism to prevent particles from entering between the lens and the lens holder, leading to reduced imaging quality due to dust and debris accumulation.
Innovation Solution
A chip module structure with a substrate, image sensor chip, supporting holder, transparent plate, and lens with protrusion structures that align oppositely to block particles from entering, ensuring effective protection without compromising imaging quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional camera module design without special particle protection structures is used, then the device complexity is reduced and manufacturing is easier, but particles can enter through gaps between the lens and lens holder, degrading imaging quality
Solution Approach 1:
The lens holder is divided into an upper portion and a lower portion with a particle protection structure positioned between them. This segmentation creates a dedicated barrier region that blocks particles from entering the gap between the lens and lens holder, while maintaining the overall simplicity of the module structure.
Solution Approach 2:
A particle protection structure serves as an intermediary element positioned between the lens and the lens holder. This intermediate structure specifically blocks particles from entering the gap region, preventing contamination without requiring complete redesign of the entire module structure.
2Object-affected harmful factors
If protrusion structures are added to block particles, then particle protection is improved, but the manufacturing precision requirements increase due to alignment constraints
Solution Approach 1:
The particle protection structure is merged with the lens holder as an integrated component rather than a separate part. The protrusion structures are formed directly on the lens holder's inner wall, eliminating the need for separate alignment operations and reducing manufacturing precision requirements while maintaining effective particle blocking.
Solution Approach 2:
The protrusion structures are pre-formed on the lens holder during the molding process before final assembly. This preliminary formation ensures proper positioning and spacing of the protective protrusions, reducing the need for high-precision alignment during subsequent assembly operations.
Data Source
AI summary
The present invention provides a chip module structure for particles protection. The structure includes a substrate. A chip is configured on the substrate, with a sensing area. A holder is disposed on the substrate, wherein the holder has a first rib. A transparent material is disposed on the holder, substantially aligning to the sensing area. A lens holder is disposed on the holder, and a lens is configured on the lens holder, substantially aligning to the transparent material and the sensing area. The lens has a second rib, wherein the second rib is disposed corresponding to the first rib for blocking particles entering into the chip module structure.