Antenna Label for Semiconductor Wireless Communication
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Solution Overview
Problem
Semiconductor devices with wireless communication functions face challenges in achieving high antenna characteristics due to their small size, which restricts antenna arrangement and size, making it difficult to maintain effective wireless communication while minimizing power consumption.
Innovation Solution
A label-shaped antenna is attached to the outer surface of a semiconductor device, comprising a base material with an antenna pattern, an adhesive layer, and an insulating layer, allowing for improved antenna characteristics and design flexibility, even in small form factors, by embedding bumps for reliable connection and using conductive adhesives for enhanced bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the semiconductor device is made small to reduce power consumption and improve portability, then power consumption is reduced and portability is improved, but antenna characteristics deteriorate due to restricted antenna arrangement and size
Solution Approach 1:
The patent transitions the antenna from an integrated planar structure within the semiconductor device to a three-dimensional label structure that extends outward from the device surface. This dimensional change allows the antenna to achieve effective radiation characteristics in small devices by utilizing spatial extension in the vertical dimension rather than relying solely on planar area constraints.
Solution Approach 2:
The patent introduces a label as an intermediary component between the semiconductor device and the external environment. This label serves as a mediator that carries the antenna function, allowing the antenna to be physically separated from the main device body while maintaining electrical connection through connection portions, thus resolving the conflict between device miniaturization and antenna performance.
2Reliability
If the antenna size is increased to improve antenna characteristics, then antenna performance is improved, but the device size increases
Solution Approach 1:
The antenna is configured to extend in the vertical dimension from the device surface rather than expanding the device footprint in the horizontal plane. This allows the antenna to achieve effective radiation area and characteristics while maintaining a compact device form factor, as the antenna volume is distributed in the vertical direction above the device.
Solution Approach 2:
The label acts as an intermediary that decouples the antenna size from the device size. The antenna can be made large enough for good radiation characteristics on the label, while the connection portions minimize the intrusion into the device volume, effectively separating the antenna volume requirement from the device volume constraint.
3Reliability
If a label-shaped antenna is attached to the outer surface, then antenna characteristics and design flexibility are improved, but device complexity increases
Solution Approach 1:
The antenna system is segmented into distinct functional components: the label carrier, the antenna element, and the connection portions. This segmentation allows each component to be optimized independently - the label for antenna performance, the connection portions for electrical coupling - while simplifying the overall integration process compared to attempting to integrate all functions into a single monolithic structure.
Solution Approach 2:
The label serves multiple functions simultaneously: it acts as the antenna carrier, provides mechanical support for the antenna element, enables electrical connection through integrated connection portions, and offers design flexibility for different antenna configurations. This multi-functionality reduces the need for separate components and simplifies the overall device structure despite the added antenna capabilities.
Data Source
AI summary
According to one embodiment, a semiconductor device includes a storage device in which a substrate is embedded and sealed in a mold, and an antenna label attached to the storage device. The antenna label is configured to provide a wireless communication function.