Optical Packaging Structure With Dual Cavities to Prevent Scratches
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Solution Overview
Problem
Optical components and lens assemblies in existing packaging structures are prone to wear and scratches during manufacture, use, or transportation, affecting yield and service life.
Innovation Solution
A packaging structure design featuring stacked transparent substrates with an optical lens assembly and component, where the optical lens assembly is received in a cavity defined by the substrates and support, and an adhesive layer connects the support to prevent sliding, allowing for adjustable distance between the component and lens assembly to enhance light source or imaging quality and protect against scratches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If optical components and lens assemblies are directly disposed on transparent substrates, then the structure is simple and easy to manufacture, but the components are prone to wear and scratches during manufacture, use or transportation
Solution Approach 1:
The packaging structure is divided into multiple protective layers: a first transparent substrate, a first protective layer disposed on the first transparent substrate, and a second protective layer disposed on the optical lens assembly. This segmentation provides comprehensive protection for optical components while maintaining manufacturing feasibility through standardized layer-by-layer assembly processes
Solution Approach 2:
Protective layers are applied beforehand to optical components and substrates before assembly. The first protective layer is disposed on the first transparent substrate, and the second protective layer is disposed on the optical lens assembly, creating a cushioning effect that prevents wear and scratches during subsequent manufacturing, use, or transportation
2Reliability
If optical components are fixed directly on substrates, then manufacturing process is simple, but the components cannot be protected from scratches and wear
Solution Approach 1:
Protective layers are applied in advance to optical components and substrates before the assembly process. The first protective layer is formed on the first transparent substrate, and the second protective layer is formed on the optical lens assembly, ensuring protection is already in place before components are combined, thus simplifying the overall manufacturing process while enhancing protection
Solution Approach 2:
Protective layers serve as intermediary elements between optical components and the external environment. The first protective layer mediates between the first transparent substrate and external factors, while the second protective layer mediates between the optical lens assembly and external factors, preventing direct contact and potential damage
Data Source
AI summary
A packaging structure includes a first transparent substrate including includes a first surface and a second surface, a second transparent substrate including a third surface facing the second surface, a support connecting the second surface and the third surface, an optical lens assembly on the third surface, a packaging assembly including includes a base on the first surface and electrodes, and an optical component. The second transparent substrate and the first transparent substrate are stacked in a first direction. A first cavity is defined by the support connecting the second transparent substrate and the first transparent substrate. A second cavity is defined by the base and the first transparent substrate. The optical component is received in the second cavity. The optical component and the optical lens assembly overlap in the first direction, the optical component is electrically connected to the electrodes and located between the first surface and the electrodes.