Light Sensor Packaging Structure for Miniaturized Glass Fixing
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Solution Overview
Problem
Existing packaging methods for light sensing devices with glass face challenges in miniaturization, as the difficulty of fixing miniaturized glass on covers increases, leading to potential detachment and compromised optical sensing effects.
Innovation Solution
A packaging structure and method that fix the glass on a transparent molding substance, with a sheltering element covering the edges, preventing detachment and maintaining optical integrity, while allowing for miniaturization of the overall structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the glass is fixed on the cover of the light sensing device, then the optical sensing effects can be provided, but the difficulty of fixing the miniaturized glass on the miniaturized cover increases greatly
Solution Approach 1:
The patent introduces a transparent adhesive layer as an intermediary substance between the glass and the cover. This adhesive layer facilitates the bonding process by providing a suitable bonding surface and adhesive force, thereby reducing the difficulty of fixing the miniaturized glass on the miniaturized cover while maintaining the optical sensing effects.
2Reliability
If the glass is fixed on the cover of the light sensing device, then the optical sensing effects can be provided, but the glass is easy to fall off
Solution Approach 1:
The transparent adhesive layer serves as a mediator that provides strong bonding between the glass and the cover. This adhesive layer distributes the stress and provides sufficient adhesion strength, preventing the glass from falling off while maintaining the optical sensing functionality.
Solution Approach 2:
The patent changes the bonding parameters by introducing an adhesive layer with specific adhesive properties. This parameter change (from direct contact bonding to adhesive-mediated bonding) increases the bonding strength and stability, preventing glass detachment while preserving optical sensing effects.
3Volume of moving object
If the structure of the cover and glass is miniaturized accordingly, then the overall structure can be miniaturized, but the difficulty of fixing the glass increases greatly
Solution Approach 1:
The transparent adhesive layer acts as an intermediary that enables the fixing of miniaturized glass on the miniaturized cover. The adhesive properties of this layer are particularly beneficial for small-scale components, providing sufficient bonding strength despite the reduced size, thus enabling overall structure miniaturization without proportionally increasing fixing difficulty.
Data Source
AI summary
The present invention discloses a light sensing device packaging structure and the packaging method thereof. The packaging structure comprises a substrate, a transparent molding substance, a first glass, and a sheltering element. A first optical element and a second optical element are disposed on the substrate. The transparent molding substance covers the first optical element and the second optical element. A bottom surface of the first glass is fixed on the transparent molding substance and aligned with the first optical element. The sheltering element covers the edge of the transparent molding substance not covered by the first glass. This design maintains the excellent optical sensing effect of the light sensing device while allowing for miniaturization of the overall structure.