Two-Photon Lithography Housing for Electrode Structures
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Solution Overview
Problem
Current additive manufacturing methods face challenges in achieving precision, speed, and economy of materials, particularly in forming complex shapes around electrode structures with curved or angled surfaces without the need for expensive tools or additional supporting structures.
Innovation Solution
The method employs two-photon lithography, using focused photons to polymerize a light-curing material in a liquid solution, allowing for the creation of a housing body around a main body and electrode structure without a prefabricated mold, enabling the formation of complex shapes and reducing material consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional additive manufacturing methods are used to form housing bodies around electrode structures, then the manufacturing process requires prefabricated molds or masks and additional supporting structures, but this increases device complexity and manufacturing cost
Solution Approach 1:
The patent extracts and eliminates the need for prefabricated molds, masks, and supporting structures from the manufacturing process. By using two-photon polymerization, the housing body is formed directly around the electrode structure through selective photopolymerization of the liquid resin, removing the complexity of external tooling and support systems.
Solution Approach 2:
The electrode structure itself serves as the core around which the housing body forms, eliminating the need for separate molds or masks. The liquid resin automatically conforms to the electrode structure's geometry through capillary action and selective curing, making the electrode structure serve dual purposes as both the functional component and the mold-defining element.
2Manufacturing precision
If conventional additive manufacturing methods are used, then the process requires additional tools and supporting structures, but this increases manufacturing cost and process complexity
Solution Approach 1:
The patent replaces mechanical molds and supporting structures with a light-based two-photon polymerization system. The housing body shape is controlled through optical focusing of laser beams to specific 3D coordinates within the liquid resin, substituting mechanical form tools with optical field control for precise and complex geometries.
3Shape
If traditional manufacturing methods are used to create complex shapes, then additional supporting structures are required, but this increases material usage and waste
Solution Approach 1:
The two-photon polymerization process enables local control of the housing body formation by selectively curing the liquid resin only at the required 3D locations around the electrode structure. This localized photopolymerization allows complex geometries to be created with minimal material usage, as the resin is cured only where needed rather than requiring excess material for support structures.
4Adaptability or versatility
If conventional additive manufacturing is used, then the process requires prefabricated molds, but this reduces adaptability to different electrode structure geometries
Solution Approach 1:
The manufacturing process is dynamic and adaptable, allowing the housing body geometry to be programmed and adjusted through software control of the laser focusing system. This enables the same manufacturing setup to accommodate various electrode structure geometries and configurations without requiring physical retooling or remolding, providing high versatility while maintaining process simplicity.
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 approach results in a compact, mechanically stable component with precise control over the housing body's shape and location, eliminating the need for additional tools and minimizing material usage, while allowing for the production of components with intricate geometries.
Implementation Method 1
the photons can be focused in such a way that the light-curing material absorbs two high-energy photons simultaneously or substantially simultaneously, thereby triggering the chain reaction in the liquid solution and hence the polymerization
Implementation Method 2
the light-curing material located in the solution being thereby polymerized and cured at the focused local points to form the housing body
Implementation Method 3
photons are focused in a targeted way on predefined local points on the main body and on the electrode structure
Data Source
AI summary
In an embodiment a method for producing a component having a main body, an electrode structure configured for electrically contacting the main body and a housing body bordering the main body and the electrode structure includes providing a container with a liquid solution located therein, wherein the liquid solution includes a light-curing material, and wherein the main body and the electrode structure are disposed in the container and surrounded by the liquid solution, and focusing, by a two-photon lithography, photons on targeted local points on the main body and on the electrode structure thereby polymerizing and curing the solution and forming the housing body.