Conductive Magnetic Paste Composites for Low-Temperature Flexible Electronics
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Solution Overview
Problem
Current technologies lack materials that can be used to create electrically conductive and magnetically polarizable, thermally conductive components or devices with flexible mechanical properties, suitable for low-temperature processes, which are compatible with various substrates like plastics, papers, and fabrics, as existing solutions often require high-temperature processes incompatible with these materials.
Innovation Solution
Development of pastes, inks, and glues comprising electrically conductive and magnetically polarizable components mixed with polymeric materials, using solvents or thermal processes to achieve desired viscosity and compatibility, allowing for the creation of flexible electronic devices with multiple electromagnetic and mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-temperature processes (>700°C) are used to create electrically conductive and magnetically polarizable components, then electrical and magnetic properties are achieved, but compatibility with plastic/paper/fabric substrates is lost
Solution Approach 1:
The patent changes the temperature parameter from high-temperature (>700°C) processes to low-temperature processes, enabling the use of plastic/paper/fabric substrates while maintaining electrical and magnetic properties through the specific formulation of the paste containing conductive and magnetically polarizable materials
Solution Approach 2:
The patent uses composite materials in the paste formulation, combining electrically conductive materials with magnetically polarizable materials and polymeric materials, to achieve both electrical and magnetic properties simultaneously at low processing temperatures, resolving the contradiction between property achievement and substrate compatibility
2Reliability
If rigid architectures based on metal-coated ceramic substrates are used, then electrical and magnetic functionality is achieved, but mechanical flexibility is lost
Solution Approach 1:
The patent replaces rigid metal-coated ceramic substrates with flexible plastic/paper/fabric substrates coated with conductive and magnetically polarizable pastes, creating flexible electronic devices that maintain electrical and magnetic functionality while gaining mechanical flexibility
Solution Approach 2:
The patent changes the mechanical property parameter from rigid to flexible by using polymeric materials as the base and applying conductive pastes that can conform to flexible substrates, enabling mechanical flexibility while maintaining electrical and magnetic functionality
3Reliability
If multiple separate electromagnetic components are integrated, then functional properties are achieved, but device complexity increases
Solution Approach 1:
The patent merges electrically conductive materials and magnetically polarizable materials into a single paste formulation that can be applied simultaneously to substrates, reducing integration complexity while achieving both electrical and magnetic functional properties in unified components
Solution Approach 2:
The patent creates multi-functional paste materials that provide both electrical conductivity and magnetic polarizability simultaneously, allowing single-layer applications to achieve multiple functions that previously required separate components and processes
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 the production of flexible electronic devices with enhanced mechanical strength and flexibility, suitable for low-temperature processing on diverse substrates, addressing the need for multifunctional components with electrical, magnetic, and thermal conductivity.
Implementation Method 1
electrically conductive and electrically and magnetically polarizable and thermally conductive paste or ink or glue
Implementation Method 2
electrically conductive and electrically and magnetically polarizable and thermally conductive paste or ink or glue
Implementation Method 3
electrically conductive and electrically and magnetically polarizable and thermally conductive paste or ink or glue
Implementation Method 4
the polymeric materials can be used as matrices that bind the above materials, creating composites with complementary properties
Data Source
AI summary
A method of formulating and using pastes, inks or adhesives made of electrically conductive and magnetically polarizable materials bound by a polymeric matrix includes depositing a paste, ink or adhesive at a low temperature, and using the paste, ink or adhesive as an electrically and magnetically and thermally active component, either in a wet or dried state. The polymer matrix provides the deposited product with mechanical properties, which integrate with the electrical and magnetic functions expressed by the other materials in the product. The product can be deposited both on a flexible and a rigid substrate, and can be used directly on the substrate, or in a form released from the substrate. The deposited product may be used as an electromagnetic and thermal component and device, such as an electromagnetic welder, electromagnetic heater, multifunctional material and coating passivating a static electric charge, magnetoresistive sensor, electromechanical relay, or electromechanical actuator.