Ultra Broadband Capacitor With Interlocking Electrode Arms
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Solution Overview
Problem
Existing wideband capacitor designs are complex and costly, requiring multiple processing steps and additional components to create capacitive elements, which complicates their production and increases costs while aiming to achieve efficient performance across various operating frequencies.
Innovation Solution
A simplified configuration for ultra broadband capacitors is developed, utilizing a plurality of stacked electrodes with central portions and extension arms to generate multiple capacitive elements within a single set, reducing the number of processing steps and eliminating the need for separate electrode sets, floating internal plates, or external terminal features, thereby achieving similar performance characteristics at lower production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple capacitive elements are created using separate electrode sets and additional components, then the broadband performance is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges multiple capacitive elements into a single integrated structure by forming different capacitances within the same electrode layer using varying dielectric material thicknesses. This eliminates the need for separate electrode sets and multiple components, achieving broadband performance while reducing device complexity.
Solution Approach 2:
The electrode layers in the patent serve multiple functions simultaneously - they form both high-capacitance regions (with thinner dielectric) and low-capacitance regions (with thicker dielectric) within the same structure. This multi-functionality allows a single component to provide broadband performance across multiple frequency ranges.
2Reliability
If multiple processing steps are used to create capacitive elements, then the performance characteristics are improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent applies preliminary action by forming the complete electrode structure with varying dielectric thicknesses in a single layer deposition process. The different capacitance values are predetermined by the dielectric thickness profile, eliminating the need for subsequent processing steps to create additional capacitive elements.
Solution Approach 2:
The patent changes the dielectric thickness parameter across the electrode layer to create different capacitance values. By varying the thickness of the dielectric material between electrodes, the patent achieves multiple capacitance values (high and low) within the same structure without requiring additional processing steps.
3Adaptability or versatility
If separate components are used to achieve wideband performance, then the frequency range coverage is improved, but the production cost increases
Solution Approach 1:
The patent combines multiple capacitance values into a single integrated capacitor structure, eliminating the need for separate components. By forming high-capacitance and low-capacitance regions within the same device using varying dielectric thicknesses, the patent achieves wideband performance while reducing production costs associated with assembling multiple 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
The solution allows for the reproducible creation of secondary and tertiary capacitive elements within a single multilayer monolithic capacitor structure, enhancing efficiency and reducing production complexity and costs, while maintaining functional equivalence to previous designs, and achieving broad-band response capabilities.
Implementation Method 1
a first capacitance formed from an overlap between a first main electrode and a second main electrode
Implementation Method 2
dielectric material interleaved between adjacently stacked first and second electrode sheets
Data Source
AI summary
Disclosed are apparatus and methodology for inexpensive realization of one or more secondary capacitors within a monolithic body that already includes a first, larger capacitor to provide ultra wideband structures. Alternating layers of electrodes are provided with arm portions that embrace portions of adjacent electrode layers so as to create additional coupling effects within the capacitor structure thereby producing multiple additional equivalent capacitor structures within the device.