Radar Chip Package With Waveguide Routing for Low-Loss Signal Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current semiconductor devices for radar applications face challenges in achieving cost-effectiveness and minimizing performance losses, particularly in signal routing and redistribution between the chip and antenna.
Innovation Solution
The semiconductor device comprises a substrate with connection elements for attaching to a printed circuit board and a radar semiconductor chip, along with signal routing structures and waveguiding transformer elements, which enable efficient electrical and mechanical connections, and the use of waveguides for microwave signal transmission, including air-filled hollow waveguides and dielectric lenses for improved performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional signal routing methods are used between chip and antenna, then device complexity is reduced, but performance losses increase due to electromagnetic signal degradation
Solution Approach 1:
The patent introduces waveguide transition elements as intermediary components that couple the radar semiconductor chip to air-filled hollow waveguides. These transition elements act as mediators that efficiently transfer microwave signals from the chip's transmission lines into the waveguide structure, minimizing signal loss while managing the complexity of electromagnetic coupling through specialized transition structures.
Solution Approach 2:
The patent replaces traditional planar transmission line routing with three-dimensional waveguide structures. By substituting the conventional two-dimensional signal path with volumetric waveguide channels, the system achieves lower signal loss at microwave frequencies while the complexity is managed through integrated waveguide components rather than extended PCB traces.
2Loss of energy
If air-filled hollow waveguides are used for signal transmission, then performance losses are reduced, but manufacturing precision requirements increase
Solution Approach 1:
The waveguide system is segmented into modular components including the radar chip, transition elements, air-filled hollow waveguides, and dielectric lenses. Each segment can be manufactured and characterized independently, allowing for standardized fabrication processes and reducing the overall manufacturing precision burden while maintaining low signal loss performance.
Solution Approach 2:
The patent employs dielectric lenses with specific permittivity values to focus and guide microwave signals within the waveguide system. By adjusting the dielectric constant and geometric parameters of these lenses, the system optimizes signal transmission while accommodating variations in manufacturing tolerances, thus reducing the stringency of precision requirements.
3Adaptability or versatility
If multiple components are integrated on the substrate, then device functionality is improved, but mechanical stresses and crosstalk increase
Solution Approach 1:
The patent transitions from planar integration to three-dimensional waveguide-based architecture. By moving signal transmission into the third dimension through vertical waveguide channels and using dielectric lenses for focal point control, the system achieves enhanced functionality while spatially separating signal paths to minimize crosstalk and mechanical stress between components.
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 configuration results in cost-effective radar semiconductor devices with reduced performance losses, enabling efficient microwave signal transmission and reception while minimizing mechanical stresses and crosstalk, suitable for applications like automotive and industrial radar systems.
Implementation Method 1
The semiconductor device comprises a substrate having a first surface and a second surface opposite the first surface. The semiconductor device furthermore comprises at least one connection element arranged on the first surface of the substrate and serving for electrically and mechanically connecting the substrate to a printed circuit board.
Implementation Method 2
The semiconductor device furthermore comprises a radar semiconductor chip arranged on the first surface of the substrate
Data Source
AI summary
A semiconductor device comprises a substrate having a first surface and a second surface opposite the first surface, at least one connection element arranged on the first surface of the substrate to electrically and mechanically connect the substrate to a printed circuit board, and a radar semiconductor chip arranged on the first surface of the substrate.