Acoustic Resonator and Inductor Integration for Chip Area Reduction
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Solution Overview
Problem
Existing RF communication circuitry in portable devices requires larger circuit boards due to the separate formation of acoustic resonators and passive network components, leading to increased chip area and complexity.
Innovation Solution
Acoustic resonators are integrated within an encapsulating structure that also houses a portion of the inductor, allowing both to be formed on the same chip or die, thereby reducing the overall chip area and simplifying the circuit design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If acoustic resonators and passive network components are formed separately on different chips, then each component can be optimized independently, but the overall chip area and circuit board size increase
Solution Approach 1:
The patent merges the acoustic resonator and passive network components onto a single chip by forming the inductor partially within the encapsulating structure that houses the acoustic resonator. This integration combines previously separate components into one unified device, reducing the total chip area while maintaining the ability to optimize each component's performance through dedicated design spaces.
2Area of stationary object
If acoustic resonators and passive network components are integrated on the same chip, then chip area is reduced, but manufacturing complexity increases
Solution Approach 1:
The inductor is nested within the encapsulating structure that contains the acoustic resonator, with the inductor's coil windings positioned around or near the resonator cavity. This nesting arrangement allows both components to coexist in a compact configuration, reducing chip area while managing complexity through spatial organization rather than separate discrete components.
3Ease of manufacture
If acoustic resonators and passive network components are formed separately, then manufacturing processes are simpler, but the circuit board becomes larger
Solution Approach 1:
By combining the acoustic resonator and passive network components into a single integrated device, the patent eliminates the need for separate chips and their interconnections on the circuit board. This merging reduces the overall circuit board size while the manufacturing process maintains simplicity through established semiconductor fabrication techniques applied to the integrated structure.
Data Source
AI summary
A device includes an acoustic resonator embedded within an encapsulating structure that at least partially encapsulates the acoustic resonator. The device includes an inductor electrically connected to the acoustic resonator. At least a portion of the inductor is embedded in the encapsulating structure.