Nanoparticle Inkjet Printing for Electrical Component Fabrication

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Solution Overview

Problem

Current methods for producing electrical components with nanoparticles, such as spin coating or dipping, are not suitable for industrial-scale production due to limitations in scalability and efficiency.

Innovation Solution

A method involving the creation of an ink with nanoparticles and their deposition on a substrate using printing processes like inkjet printing, which allows for precise control and high-resolution arrangement of nanoparticles, enabling industrial-scale production of electrical components with enhanced properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If spin coating or dipping methods are used to deposit nanoparticles on substrate, then a particle monolayer can be formed, but the method is not suitable for industrial production due to low scalability and efficiency

Engineering Contradiction:
Improveparticle monolayer formationVSAvoidindustrial production scalability
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent replaces the mechanical spin coating or dipping process with a printing process that deposits nanoparticles from an ink formulation. This substitution enables precise placement of nanoparticles in desired patterns while significantly improving scalability for industrial production, as printing methods can be easily adapted to high-volume manufacturing.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the physical state and composition parameters by formulating nanoparticles into an ink medium with specific solvent, surfactant, and viscosity characteristics. This parameter transformation allows the nanoparticle suspension to be deposited through printing processes while maintaining monolayer formation and desired particle arrangement on the substrate.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If printing processes are used to deposit nanoparticle ink, then industrial-scale production is enabled, but precise control and high-resolution arrangement of nanoparticles must be achieved

Engineering Contradiction:
Improveindustrial-scale productionVSAvoidnanoparticle arrangement precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent employs a printing process that utilizes controlled deposition mechanisms to place nanoparticle-laden ink precisely on the substrate. The printing system maintains resolution and pattern fidelity while enabling industrial-scale production through high-speed printing capabilities and programmable deposition patterns.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent achieves high-resolution nanoparticle arrangement by controlling the local deposition characteristics of the ink. The printing process delivers nanoparticles with specific spatial distribution, concentration, and orientation at each location on the substrate, enabling precise pattern formation while maintaining overall production efficiency.

Inventive Principle:
Principle #3Local quality

3Reliability

If nanoparticles are arranged in lattice structures to achieve desired magnetic and conductive properties, then GMR and TMR effects are realized, but nanoparticle stability must be maintained to prevent phase transitions

Engineering Contradiction:
Improvemagnetic and conductive propertiesVSAvoidnanoparticle phase stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent carefully controls the composition parameters of the ink formulation, including solvent type, surfactant concentration, and pH level, to maintain nanoparticle stability during deposition. These parameter optimizations prevent unwanted phase transitions while enabling the nanoparticles to self-assemble into lattice structures that exhibit the desired GMR and TMR effects.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs surfactants and stabilizing agents as intermediary substances that mediate between the nanoparticle surface and the solvent environment. These intermediaries prevent nanoparticle aggregation and phase transitions during the printing process, while allowing the particles to maintain their magnetic and conductive properties for forming functional lattice structures.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 enables the mass production of electrical components with nanoparticles arranged in precise lattice structures, achieving desired magnetic and conductive properties, such as the GMR and TMR effects, while maintaining the nanoparticles' stability and preventing phase transitions that could affect performance.

Implementation Method 1

the ink jet printing method, which belongs to the Non Impact Printing (NIP-methods, electronic printing methods without explicit printing form)

Methodology Applied
Scientific EffectInkjet printing:

Implementation Method 2

the solvent is evaporated after deposition of the ink on the substrate

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 3

achieving desired magnetic and conductive properties, such as the GMR and TMR effects

Methodology Applied
Scientific EffectGiant magnetoresistance (GMR): Magnetoresistance

Implementation Method 4

achieving desired magnetic and conductive properties, such as the GMR and TMR effects

Methodology Applied
Scientific EffectTunneling magnetoresistance (TMR): Magnetoresistance

Implementation Method 5

nanoparticles which are arranged on a substrate and made from an electrically conductive material

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS9176207B2Method for producing an electrical component and electrical component
Publication Date: 2015.11.03 MEAS DEUTLAND
  • US9176207B2 patent drawing
  • US9176207B2 patent drawing
  • US9176207B2 patent drawing

AI summary

A method for producing an electrical component which includes at least two electrical contacts and nanoparticles which are arranged on a substrate and which are made of an electrically conductive material, nanoparticles made of a magnetic material and/or nanoparticles made of a magnetisable material, an ink containing the nanoparticles and/or nanoparticles surrounded by a cover, wherein the nanoparticles are deposited on the substrate according to a printing method.