On-Edge Electronic Component Assembly for 3-Axis Antenna Orientation
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Solution Overview
Problem
Existing electronic assembly structures for handheld communication devices face challenges in integrating effective antennas with 3-axis directional capability, due to the complexity, bulk, and reliability issues associated with flexible cable assemblies, which are further exacerbated by the demands of next-generation cellular networks like 5G.
Innovation Solution
A method and structure for forming electronic device structures where electronic components, such as antennas or sensors, are placed in an on-edge or upright configuration using a conductive material like solder and conductive bumps. The conductive material is reflowed at an elevated temperature, utilizing surface tension to raise the components into the desired orientation, thereby achieving 3-axis directional capability without the need for flexible cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flexible cable assemblies are used to orient antenna devices in different directions, then 3-axis directional capability is achieved, but device complexity and bulk increase
Solution Approach 1:
The patent extracts and eliminates the flexible cable intermediary from the assembly structure. Antenna devices are directly mounted to the rigid circuit board using solder bumps, removing the flexible cable layer that caused complexity and bulk while maintaining the required 3-axis directional capabilities through direct spatial orientation of antenna elements.
Solution Approach 2:
The patent merges the antenna device mounting function directly onto the rigid circuit board substrate. By integrating multiple antenna elements and their support structures into a unified rigid assembly without flexible cables, the design achieves 3-axis coverage while reducing overall assembly complexity and eliminating the bulk associated with flexible cable management.
2Adaptability or versatility
If flexible cable assemblies are used to orient antenna devices, then directional coverage is provided, but reliability deteriorates due to aging and environmental exposure
Solution Approach 1:
The patent removes the flexible cable component that is susceptible to aging and environmental degradation. By directly mounting antenna devices to the rigid circuit board through solder bumps, the design eliminates the reliability issues associated with flexible cable aging, cracking, and environmental exposure while preserving full directional coverage capabilities.
3Adaptability or versatility
If multiple antenna devices are placed at separate locations for 5G beamforming, then 3-axis signal coverage is achieved, but manufacturing difficulty increases
Solution Approach 1:
The patent employs preliminary action by pre-attaching multiple antenna devices to the rigid circuit board in their final spatial orientations before the board is assembled into the device. Solder bumps are applied and reflowed in advance to secure antenna elements at precise locations and angles required for 5G beamforming, simplifying subsequent manufacturing steps and enabling efficient production of multi-antenna configurations.
4Adaptability or versatility
If flexible cables are used to position antenna devices, then design flexibility is achieved, but the solution becomes less suitable for smaller and thinner devices
Solution Approach 1:
The patent extracts the flexible cable layer that occupies valuable volume in the assembly. By directly mounting antenna devices to the rigid circuit board, the design eliminates the additional thickness and volume required for flexible cable routing and bending, enabling smaller and thinner device form factors while maintaining design flexibility through direct spatial positioning of antenna elements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances design flexibility and performance by eliminating the bulk and complexity of flexible cables, while supporting multiple electronic applications and meeting the directional requirements of next-generation communication technologies.
Implementation Method 1
The conductive material is exposed to elevated temperature configured to reflow the conductive material. During the reflow process, a surface tension effect acts to raise or rotate the electronic component upward into an upright or on-edge orientation.
Data Source
AI summary
An electronic device structure includes a substrate having a substrate first major surface, an opposing substrate second major surface, and a first conductive pattern adjacent to the substrate first major surface. A first electronic component is coupled to the substrate and includes a first component first side and a first device structure adjacent to the first component first side. A second electronic component is adjacent to the substrate second major surface and includes a second component first side and a second device structure adjacent to the second component first side. A third electronic component is coupled to the substrate. The first electronic component is generally orthogonal to the substrate and the first device structure is oriented in a first direction, and the second device structure is oriented in a second direction different than the first direction.