Multicell Plasma Array for Precise Localized Surface Treatment
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Solution Overview
Problem
Existing plasma devices are not designed for precise, fast, and independent control of plasma cells, limiting their ability to perform high-definition surface treatments such as 2D printing, etching, or material deposition, and require vacuum environments, making them inefficient and costly for many industrial applications.
Innovation Solution
A multicell or multiarray plasma device with individually controllable plasma cells, allowing for fast and precise activation and deactivation, operates at atmospheric or moderate vacuum conditions, and enables localized surface modifications including 2D printing without the need for continuous plasma application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If continuous high voltage is used for plasma generation, then plasma can be continuously supplied to cover large surfaces, but fast and precise control for localized treatment and 2D printing is not achieved
Solution Approach 1:
The plasma device is divided into multiple independently controllable plasma cells arranged in an array. Each cell can be individually activated or deactivated, allowing selective plasma application to specific surface locations. This segmentation enables both continuous plasma supply across multiple cells and precise localized control by activating only the required cells.
2Power
If high voltage is used for plasma generation, then plasma can be generated effectively, but fast activation and deactivation of plasma cells is difficult
Solution Approach 1:
The plasma cells are activated and deactivated in periodic cycles through pulsed voltage application. Each cell can be rapidly switched between active and inactive states by controlling the voltage pulse timing, enabling fast response for dynamic patterns and 2D printing applications while maintaining effective plasma generation during the active phase.
3Area of stationary object
If plasma cells are activated simultaneously to cover large surfaces, then large area treatment is achieved, but independent control of individual cells for 2D patterns is not possible
Solution Approach 1:
The plasma source is segmented into multiple independently addressable cells, each capable of being activated or deactivated individually. This allows the system to treat large surfaces by activating multiple cells simultaneously while also enabling 2D patterning by selectively activating specific cells in predetermined patterns, thus achieving both large area coverage and design versatility.
4Reliability
If vacuum environment is used for plasma treatment, then plasma processing can be performed, but expensive equipment and complex closed environment are required
Solution Approach 1:
The plasma device operates at atmospheric pressure by adjusting the gas flow rate and voltage parameters to maintain stable plasma generation without vacuum conditions. This parameter change eliminates the need for vacuum pumps and sealed chambers, significantly reducing device complexity and cost while maintaining reliable plasma treatment capability.
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 high-definition 2D marking and surface treatments with improved precision and efficiency, reducing costs by eliminating the need for vacuum systems and enabling fast, localized plasma application on various materials.
Implementation Method 1
a gas is supplied through two high voltage electrodes so as to generate ionized species
Implementation Method 2
generate ionized species
Data Source
AI summary
Disclosed is a plasma device including at least two plasma cells, and a command unit, wherein the first and the second electrodes of a given plasma cell are independent from the corresponding first and second electrodes of the contiguous plasma cells. The electrodes of contiguous plasma cells are independently connected to the command unit. The command unit includes a high voltage generator and a radiofrequency generator which are mutually protected by a filtering element.