Printer Device for High-Viscosity Flexible Circuit Fluids

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Solution Overview

Problem

Current printing devices are unable to handle high-viscosity conductive and dielectric printing fluids used in flexible circuit manufacturing, preventing the creation of complex circuit shapes without a flexible base material.

Innovation Solution

A printer device with a fluid chamber, electronic control unit, and precise motion and pressure control mechanisms that allow for automatic printing of high-viscosity fluids directly onto a surface according to a desired circuit diagram, eliminating the need for a flexible base material.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional printing devices are used with current conductive and dielectric printing fluids, then printing can be performed on flexible base materials, but the device cannot handle high-viscosity printing fluids and cannot create complex circuit shapes without a flexible base material

Engineering Contradiction:
Improveability to handle high-viscosity printing fluidsVSAvoidprinting system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent modifies the printing device parameters including pressure control system, temperature control system, and viscosity adjustment mechanisms to accommodate high-viscosity printing fluids. The device includes a fluid reservoir with heating element and pressure regulator that can adjust fluid properties before printing, enabling handling of fluids with higher viscosity than conventional systems.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The printing device is divided into separate functional modules: fluid storage and preparation system, pressure control system, temperature control system, and printing head system. This segmentation allows each module to be optimized independently for handling high-viscosity fluids while maintaining overall system functionality.

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If new high-viscosity printing fluids are used to eliminate flexible base material, then manufacturing flexibility is improved, but existing printing devices cannot print these fluids with complex circuit shapes

Engineering Contradiction:
Improveelimination of flexible base materialVSAvoidcomplex circuit shape printing capability
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The printing device incorporates dynamic pressure and temperature control during the printing process. The pressure control system can adjust pressure in real-time based on the circuit pattern being printed, enabling precise deposition of high-viscosity fluids to form complex shapes. The temperature control system dynamically adjusts fluid viscosity during printing to maintain optimal flow characteristics.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The device includes sensors that monitor fluid viscosity, pressure, and temperature during printing, with feedback control mechanisms that adjust printing parameters in real-time. This feedback system ensures consistent printing quality and precise circuit shape formation even when using high-viscosity fluids that eliminate the need for flexible base materials.

Inventive Principle:
Principle #23Feedback

3Productivity

If automatic printing of high-viscosity fluids is implemented, then productivity is improved, but device complexity increases

Engineering Contradiction:
Improveautomatic printing capabilityVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The printing device incorporates self-regulating mechanisms including automatic fluid viscosity compensation, self-cleaning printing heads, and automated pressure equalization systems. These self-service features reduce the need for complex external control systems and manual intervention, improving productivity while keeping device complexity manageable.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The device is designed with multi-functional components that can handle different fluid viscosities, printing speeds, and circuit patterns using a single integrated system. This universality reduces the need for multiple specialized devices and simplifies the overall control architecture while maintaining high productivity through automatic operation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 precise and automatic printing of high-viscosity conductive and dielectric fluids onto flexible circuits, creating complex shapes and conductive pathways without a flexible base material, enhancing manufacturing efficiency and flexibility.

Implementation Method 1

at least one fluid chamber (10) which is configured to store; to mix a plurality of conductive and dielectric printing fluids at the same time independently of each other; to pump and to carry these during printing

Methodology Applied
Scientific EffectFluid mixing:

Implementation Method 2

a pressure spring (46) which is located inside the printing member (40); positioned inside the connecting pipe (42) and the printer head (43), outside the tie rod (45) and concentrically to the tie rod (45); configured to enable the valve (44) to contact the flow head (41) by means of the tie rod (45) when pressure is not applied

Methodology Applied
Scientific EffectElastic force: Elasticity

Implementation Method 3

at least one heated table with pressure sensor (32) which is located on the frame (30) and configured to carry at least one pressure sensor controlling the pressure that is applied during printing of the flexible circuit and to carry a heater enabling to heat the flexible circuit

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentUS20230180392A1Printer device with automatic printing apparatus for flexible circuit applications
Publication Date: 2023.06.08 HACETTEPE UNIVERSITESI REKTORLUK
  • US20230180392A1 patent drawing
  • US20230180392A1 patent drawing

AI summary

The present invention relates to a device (1) for enabling high-viscosity conductive and dielectric printing fluids, that are used in commercial and experimental flexible circuit manufacturing practices and included at the universal or experimental development stage, to be printed automatically in compliance with the flexible circuit diagram desired to be printed and without using a flexible base material.