Multi-Electrode Sensor Manufacturing With Selective Electrodeposition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sensor manufacturing processes are inefficient and costly, particularly for disposable sensors with multiple electrodes, as they often require complex methods like screen-printing and photolithography, limiting production speed and cost-effectiveness.
Innovation Solution
A manufacturing process involving a flexible dielectric substrate with electrodes and conductive tracks, utilizing electrochemical deposition to selectively form distinct layers on each electrode, allowing for the production of sensors with different structures, such as working and reference electrodes, through electroetching and electrodepositing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If screen-printing and photolithography techniques are used to manufacture sensors with multiple electrodes, then manufacturing precision can be achieved, but production speed decreases and costs increase
Solution Approach 1:
The patent replaces traditional mechanical manufacturing methods (screen-printing, photolithography) with electrochemical methods (electroetching, electrodeposition). This substitution enables faster production while maintaining precision through electrochemical control, directly resolving the contradiction between manufacturing precision and production speed
Solution Approach 2:
The patent changes the fundamental process parameters from mechanical deposition to electrochemical reactions. By controlling electrical current, voltage, and electrolyte composition, the process achieves precise material deposition and removal while operating at higher speeds compared to traditional mechanical methods
2Manufacturing precision
If screen-printing and photolithography techniques are used to manufacture sensors with multiple electrodes, then manufacturing precision can be achieved, but manufacturing complexity increases
Solution Approach 1:
The patent combines multiple separate manufacturing steps into integrated electrochemical processes. The etching and deposition operations are performed in unified electrochemical cells, reducing the number of process steps and simplifying the overall manufacturing workflow while maintaining precision
Solution Approach 2:
The electrochemical process serves multiple functions: it can etch electrodes, deposit conductive layers, and form insulating layers using the same fundamental mechanism. This multi-functionality reduces manufacturing process complexity compared to requiring separate specialized processes for each operation
3Reliability
If traditional manufacturing methods are used for disposable sensors, then electrode functionality can be achieved, but production cost increases
Solution Approach 1:
The patent optimizes the manufacturing process specifically for disposable sensors by using cost-effective electrochemical methods that can produce functional electrodes at low cost. The process is designed to create single-use sensors where the lower production cost per unit is acceptable given the disposable nature of the product
Solution Approach 2:
The electrochemical processes use the sensor substrate itself as part of the reaction system, where the conductive layers and electrodes serve as both the product and the reaction interface. This self-service approach eliminates the need for separate, expensive processing equipment and reduces overall manufacturing costs
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 process enhances production speed and reduces costs by enabling efficient electrochemical deposition, particularly suitable for single-use sensors, while maintaining high precision and functionality.
Implementation Method 1
electrodepositing at least one conductive material on at least one of the two electrodes
Implementation Method 2
etching, in the layer of the first material, at least a first electrode and a second electrode
Data Source
AI summary
A process for manufacturing a sensor including at least two electrodes, including providing a flexible dielectric substrate having a layer of electrically conductive material on at least one of its sides. The electrodes, conductive connecting tracks and a common current supply track are etched in the layer of electrically conductive material. The process further includes electrodepositing one or more layers on the two electrodes and a step of selectively depositing, electrochemically, on at least one electrode, at least one layer of a material different from the one or more materials already deposited on another electrode.