Conductive Pattern Formation on Polymer Resin via Electromagnetic Irradiation
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Solution Overview
Problem
Existing methods for forming conductive patterns on polymeric resin substrates are complex, result in deteriorated mechanical-physical properties, and often have poor adhesion strength, limiting their application in microelectronic technologies such as antennas and sensors.
Innovation Solution
A composition comprising non-conductive metal compound particles with specific crystal structures and particle sizes, irradiated with electromagnetic waves to form metal nuclei and an adhesion-activated surface, followed by electroless plating to create a conductive pattern with improved adhesion and mechanical strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-conductive metal compound particles are added to the polymer resin to form conductive patterns by electromagnetic irradiation, then conductive patterns can be formed on the resin substrate, but brittleness increases and mechanical-physical properties such as impact strength deteriorate
Solution Approach 1:
The patent changes the particle size parameter of non-conductive metal compounds to a specific range (0.1-20 μm) and controls their content (1-10 parts by weight per 100 parts of polymer resin) to minimize impact on mechanical properties while enabling conductive pattern formation through electromagnetic irradiation
Solution Approach 2:
The patent creates a composite material system combining polymer resin with specifically sized and structured non-conductive metal compound particles that have layered crystal structures, achieving both conductive pattern formability and maintained mechanical strength through the synergistic combination of materials
2Reliability
If conventional methods are used to form conductive patterns on polymeric resin substrates, then conductive patterns can be created, but the process becomes too complicated and requires complex equipment
Solution Approach 1:
The patent extracts and eliminates intermediate processing steps by directly forming conductive patterns through electromagnetic irradiation of non-conductive metal compounds embedded in the resin, removing the need for separate metal layer deposition and photolithography processes
Solution Approach 2:
The non-conductive metal compound particles within the polymer resin automatically form metal nuclei and conductive patterns when exposed to electromagnetic waves, enabling self-pattern formation without requiring external photolithography equipment or complex processing steps
3Reliability
If conventional methods are used to form conductive patterns on polymeric resin substrates, then conductive patterns can be created, but adhesion strength between the conductive pattern and resin substrate is poor
Solution Approach 1:
The patent performs preliminary action by embedding non-conductive metal compound particles within the polymer resin matrix before pattern formation, creating pre-positioned nucleation sites that ensure strong adhesion when conductive patterns are subsequently formed through electromagnetic irradiation
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
The method enables the formation of fine conductive patterns with excellent adhesion strength and reduced mechanical property deterioration, suitable for applications in mobile phone cases, RFID tags, and MEMS structures, while maintaining the resin's impact strength and physical properties.
Implementation Method 1
a metal nuclei including the first metal or the second metal element or an ion thereof is formed from the non-conductive metal compound particles by electromagnetic irradiation
Data Source
AI summary
The present invention relates to a composition for forming a conductive pattern which is capable of forming a fine conductive pattern reducing deterioration of mechanical-physical properties and having excellent adhesion strength onto a variety of polymeric resin products or resin layers, a method for forming the conductive pattern using the same, and a resin structure having the conductive pattern. The composition for forming a conductive pattern includes a polymer resin; and non-conductive metal compound particles including a first metal element and a second metal element, having a R3m or P63/mmc space group in crystal structure, and having a particle size of 0.1 to 20 μm, wherein a metal nuclei including the first metal or the second metal element or an ion thereof is formed from the non-conductive metal compound particles by electromagnetic irradiation.