Inkjet-Printed SAM Layers for Spatial Surface Energy Control
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Solution Overview
Problem
Existing methods for configuring surface energies and hydrophilicities of substrates are complex, expensive, and time-consuming, often failing to achieve spatial control effectively.
Innovation Solution
Inkjet printing of self-assembled monolayer (SAM) structures using a SAM composition with an active component and hydrophobic tail, allowing localized printing and reaction on substrate surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional methods are used to configure surface energies and hydrophilicities, then surface modification can be achieved, but the process becomes complex, expensive, and time-consuming without spatial control
Solution Approach 1:
The substrate surface is divided into multiple regions, with different areas receiving different SAM compositions or treatment conditions. This segmentation enables spatial control of surface properties while using a simplified inkjet printing process rather than complex multi-step surface modification methods.
Solution Approach 2:
Traditional mechanical or chemical surface modification methods are replaced with inkjet printing of SAM compositions. This substitution uses a well-established, simple printing technology to achieve surface modification, eliminating the need for complex equipment and procedures while maintaining ease of manufacture.
2Ease of manufacture
If traditional methods are used to configure surface energies and hydrophilicities, then surface modification can be achieved, but the process becomes expensive and time-consuming
Solution Approach 1:
The SAM composition is prepared in advance with the desired active components and hydrophobic tails, and the inkjet printing system is pre-configured. This preliminary preparation allows for rapid, cost-effective surface modification without time-consuming on-site processing steps, improving productivity.
Solution Approach 2:
Complex and expensive traditional surface modification equipment is replaced with affordable inkjet printing technology. This substitution maintains ease of manufacture while significantly reducing processing time and cost, thereby improving productivity.
3Ease of manufacture
If traditional methods are used to configure surface energies and hydrophilicities, then surface modification can be achieved, but spatial control is lost
Solution Approach 1:
The substrate is divided into distinct printing regions, with each region receiving targeted SAM composition deposition through inkjet printing. This segmentation provides precise spatial control over surface energy and hydrophilicity distribution, allowing different areas to have customized properties while maintaining ease of manufacture.
Solution Approach 2:
Different regions of the substrate are given different local qualities by selectively printing specific SAM compositions in different areas. This local quality approach enables precise spatial control of surface properties while using a simple, easy-to-implement inkjet printing process.
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
Facilitates simple, cost-effective, and time-efficient spatial control of surface energies and hydrophilicities, enabling precise formation of optical films and devices with improved quality and functionality.
Implementation Method 1
printing one or more SAM layers on a substrate surface of the substrate in a localized manner such that a portion of the substrate surface is left exposed to a processing region of the inkjet chamber. The printing includes spraying one or more subsections of the substrate surface with an ink
Implementation Method 2
forming self-assembled monolayer (SAM) structures
Implementation Method 3
allowing the one or more SAM layers to react with the substrate surface
Implementation Method 4
The SAM composition includes an active component, and a hydrophobic tail
Data Source
AI summary
Embodiments of the present disclosure relate to methods, systems, and apparatus for inkjet printing self-assembled monolayer (SAM) structures on substrates. In one embodiment, which can be combined with other embodiments, one or more SAM layers are printed on a substrate surface of a substrate in a localized manner such that a portion of the substrate surface is left exposed to a processing region of the inkjet chamber. The printing includes spraying one or more subsections of the substrate surface with an ink, the ink having a SAM composition. The SAM composition includes an active component, and a hydrophobic tail.