Multi-Channel Troughs for Flexible Semiconductor 3D Printing
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Solution Overview
Problem
Existing 3D printing equipment for flexible semiconductors has limitations such as single printing modes, slow printing speeds, poor interlayer bonding, and inadequate environmental control for diverse semiconductor materials.
Innovation Solution
A system and control method for printing and discharging flexible semiconductor 3D additive materials, which includes pretreatment chambers for environmental modulation, multi-channel troughs for simultaneous printing of different ink materials, and printheads with solenoid valve and electrostatic spinning capabilities, controlled by a processor to manage gas pressure, duration, and layer sequencing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single printing mode is used, then the device complexity is reduced, but the adaptability to different ink materials with varying viscosities deteriorates
Solution Approach 1:
The printing equipment is divided into multiple independent printing modes (extrusion printing, inkjet printing, electrostatic spinning) with separate control systems. Each printing mode can be independently selected and controlled based on the specific ink material properties and printing requirements, allowing the system to adapt to different materials without increasing overall device complexity
Solution Approach 2:
The printing equipment incorporates adjustable parameters including gas pressure, gas duration, and temperature control that can be dynamically modified according to different ink materials. The system can switch between different printing modes and adjust operational parameters in real-time to optimize printing for each specific material type
2Productivity
If one channel is used for printing at a time, then the device complexity is reduced, but the productivity deteriorates
Solution Approach 1:
Multiple printing channels are merged into a single integrated printing head assembly, allowing simultaneous printing of different ink materials through different channels. The system combines extrusion, inkjet, and electrostatic spinning capabilities in one unified device, achieving multi-channel parallel printing without proportionally increasing device complexity
Solution Approach 2:
The printing head is designed as a universal multi-functional component that can handle multiple ink materials through different channels simultaneously. Each channel can be configured for different printing modes and materials, allowing the single printing head to perform multiple functions and significantly improve printing speed
3Adaptability or versatility
If the trough is changed to print the next material, then the material diversity is improved, but the interlayer bonding deteriorates due to curing of the first material
Solution Approach 1:
The system performs preliminary actions by controlling gas pressure and duration parameters to regulate ink material extrusion speed and timing. Temperature control is applied in advance to prevent premature curing of the first material. The system also pre-configures multiple channels to have different ink materials ready, allowing continuous printing without trough changes that would cause bonding issues
Solution Approach 2:
The printing process maintains continuity by preventing interruption between printing different materials. The system uses multiple channels with different ink materials that can be printed sequentially without stopping or changing troughs. Continuous printing ensures that the first material does not cure before the next material is applied, maintaining proper interlayer bonding throughout the printing process
4Manufacturing precision
If only temperature control is provided, then the device complexity is reduced, but the manufacturing precision deteriorates due to inadequate environmental control for diverse materials
Solution Approach 1:
The environmental control system provides localized control for different printing channels and regions. Each channel can have independent temperature, humidity, and gas environment control tailored to the specific ink material being printed. This local quality approach ensures optimal printing conditions for each material without requiring uniform complex control across the entire system
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 system enables efficient and simultaneous printing of multiple semiconductor ink materials with different viscosities, improving printing speed, reducing material waste, and enhancing interlayer bonding, while ensuring optimal environmental conditions for each material.
Implementation Method 1
setting an applied gas pressure and an applied gas duration for each trough based on the ink materials required for printing
Implementation Method 2
principle includes a solenoid valve printhead
Implementation Method 3
principle includes an electrostatic spinning printhead
Implementation Method 4
a plurality of ink materials entering corresponding pretreatment chambers for pretreatment of temperature, humidity, light, and gas environment modulation
Implementation Method 5
pretreatment of temperature, humidity, light, and gas environment modulation
Data Source
AI summary
The embodiments of the present disclosure relate to the technical field of a flexible semiconductor 3D additive material, in particular to a system for printing and discharging of a flexible semiconductor 3D additive material and a control method thereof. Ink materials corresponding to different layers of a flexible semiconductor to be printed are pre-treated prior to entering troughs. The ink materials after the pretreatment flow into the multi-channel troughs, the corresponding ink materials are controlled to be sequentially extruded by gases in the corresponding troughs, intertwined and injected into interfaces, and stacked to form a stacked layer structure at end of printheads connected with the interfaces to complete discharging and printing, thereby realizing simultaneous printing of the ink materials of different viscosities and fluidities, improving the printing speed, and realizing direct printing of a sandwich structure of a semiconductor device.