Multi-Level Plasma Voltage Circuit for Non-Sinusoidal Waveforms
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Solution Overview
Problem
Existing voltage generators struggle to generate multiple levels of output voltages efficiently and require complex circuit configurations, making them unsuitable for environments needing varied voltage levels.
Innovation Solution
A non-sinusoidal signal generation apparatus comprising a first rectangular wave circuit, a second rectangular wave circuit, and a sawtooth wave circuit, capable of applying positive and negative voltages and sawtooth wave voltages with different magnitudes, using an inductor to draw current from a capacitive load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing voltage generators are used to generate various levels of output voltages, then the voltage level diversity is improved, but the circuit configuration complexity increases
Solution Approach 1:
The voltage generator is divided into multiple independent voltage generation circuits (first voltage generation circuit, second voltage generation circuit, third voltage generation circuit), each capable of generating specific voltage levels. This segmentation allows the system to achieve multiple voltage levels without requiring a single complex circuit, as each segment handles a specific voltage generation task independently.
Solution Approach 2:
Each voltage generation circuit is designed to be multi-functional, capable of operating in different modes (e.g., rectification mode, inversion mode, buck mode, boost mode) to generate different voltage levels. This universality allows the same circuit structure to serve multiple voltage generation purposes, reducing overall system complexity while maintaining voltage level diversity.
2Adaptability or versatility
If existing voltage generators are used to generate various levels of output voltages, then the voltage level diversity is improved, but the equipment performance improvement efficiency decreases
Solution Approach 1:
The voltage generator employs dynamic switching between different voltage generation circuits and operating modes based on real-time voltage level requirements. The controller dynamically selects which circuit to activate and what mode to operate in, enabling rapid adaptation to different voltage demands without the overhead of complex static circuit configurations, thus improving equipment performance efficiency.
Solution Approach 2:
The system changes operational parameters (such as switching frequency, duty cycle, and circuit configuration) to generate different voltage levels. By adjusting these parameters rather than relying on fixed complex circuitry, the system achieves voltage level diversity while maintaining high equipment performance improvement efficiency.
3Adaptability or versatility
If existing voltage generators are used to generate various levels of output voltages, then the voltage level diversity is improved, but the control precision decreases
Solution Approach 1:
Each voltage generation circuit is equipped with feedback control mechanisms that continuously monitor the output voltage and adjust the circuit operation accordingly. This feedback ensures precise control of output voltage levels, maintaining high measurement precision even as the system switches between different voltage levels and operating modes.
Solution Approach 2:
The controller pre-configures the voltage generation circuits and sets appropriate operating parameters before voltage level changes are required. This preliminary action ensures that when voltage level transitions are needed, the system can switch smoothly and precisely to the target voltage level without transient errors, maintaining control precision across all voltage levels.
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
Enables the generation of various output signals, including low-voltage rectangular and sawtooth wave signals, along with high-voltage rectangular and sawtooth wave signals, through a multi-level voltage circuit, facilitating efficient semiconductor manufacturing.
Implementation Method 1
a sawtooth wave circuit, which can apply, to the output terminal, two sawtooth wave voltages having different magnitudes, wherein the sawtooth wave circuit comprises an inductor for drawing current from a capacitive load connected to the output terminal
Data Source
AI summary
According to the present embodiment, provided is a non-sinusoidal signal generation apparatus comprising: a first rectangular wave circuit, which can apply, to an output terminal, two positive voltages having different magnitudes; a second rectangular wave circuit, which can apply, to the output terminal, two negative voltages having different magnitudes; and a sawtooth wave circuit, which can apply, to the output terminal, two sawtooth wave voltages having different magnitudes, wherein the sawtooth wave circuit comprises an inductor for drawing current from a capacitive load connected to the output terminal.