Encapsulated Electronic Device Cover Support Structures
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Solution Overview
Problem
Flat-surface electronic components with self-supported covers are prone to damage from external pressures due to lack of mechanical stability, as conventional designs without support structures can bend or warp under pressure, leading to potential leakage or detachment.
Innovation Solution
Incorporating support structures that protrude into the encapsulation cavity between the cover and the electronic component, providing mechanical integrity and stability without increasing the cover's thickness, and using a sealing compound to maintain a gap between the cover and the component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the surface area of the electronic component is increased, then the functional capability is improved, but the mechanical stability of the cover deteriorates and it becomes susceptible to external pressures
Solution Approach 1:
The patent introduces support structures that extend vertically from the substrate into the encapsulation cavity, adding a third-dimensional structural element to resolve the two-dimensional area-stability contradiction. These support structures provide mechanical reinforcement without increasing the horizontal footprint of the device, allowing large surface area components to maintain cover stability.
2Strength
If the cover thickness is increased to improve mechanical stability, then the strength against external pressures is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent segments the mechanical support function from the cover itself by introducing separate support structures that extend from the substrate. This segmentation allows the cover to remain thin and simple while the support structures provide the necessary mechanical reinforcement, distributing the structural support function across multiple independent elements.
3Ease of manufacture
If the cover is made self-supported to simplify manufacturing, then the ease of manufacture is improved, but the reliability under external pressures deteriorates
Solution Approach 1:
The patent introduces support structures as intermediary elements between the substrate and the cover. These intermediaries provide mechanical reinforcement to the cover system without interfering with the simple self-supported attachment method, allowing the cover to be easily installed while the support structures ensure reliability under external pressures.
Data Source
AI summary
An electronic device includes a substrate (1), an electronic component (2) seated on the substrate (1), and a cover (3) across the electronic component (2) with a space (330) between the cover (3) and the electronic component (2). The cover (3) is configured on an inside (32) facing the electronic component (2) in such fashion that the cover (3) has at least one support structure (4, 40) protruding into the space (330).