Dual-Substrate Inkjet Printing with Gas-Cushion Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Industrial inkjet printers typically process one substrate at a time, limiting production speed when processing multiple substrates concurrently.
Innovation Solution
A dual-substrate inkjet printer design with a substrate support system that allows two substrates to be processed simultaneously, utilizing a gas cushion for substrate floatation, synchronized printhead assemblies, and coordinated substrate holders to maintain precision and accuracy during printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If one substrate is processed at a time in one printer, then print accuracy and stability are maintained, but production speed and productivity are limited
Solution Approach 1:
The substrate support is divided into multiple independent substrate holders (first substrate holder and second substrate holder) that can independently hold and move different substrates. This segmentation allows multiple substrates to be processed simultaneously while maintaining individual control over each substrate's position and movement, thereby increasing productivity without compromising print accuracy
Solution Approach 2:
Multiple substrate holders and printheads are merged into a single integrated printer system that operates concurrently on multiple substrates. The unified control system coordinates the movement and printing operations of all components, enabling simultaneous processing of multiple substrates while maintaining system stability and precision through centralized control
2Productivity
If two substrates are processed concurrently in one printer, then productivity increases, but vibration and print accuracy may deteriorate
Solution Approach 1:
The substrate holders are positioned symmetrically on opposite sides of the printer, and the printheads are arranged to balance the system's mass distribution. This counterbalancing arrangement reduces vibrations caused by concurrent substrate movement and printing operations, maintaining print accuracy while enabling dual-substrate processing
Solution Approach 2:
The system incorporates feedback mechanisms that monitor the position and movement of multiple substrates in real-time, allowing the control system to adjust printing parameters and substrate movement coordination dynamically. This feedback control ensures that print accuracy is maintained even when processing multiple substrates concurrently by compensating for any deviations or vibrations
3Productivity
If dual-substrate holders are added to the printer, then concurrent processing capability is enabled, but device complexity increases
Solution Approach 1:
The substrate holders are designed as multi-functional components that can independently hold, position, and move substrates while also serving as integration points for printhead assemblies. This universal design allows the same structural elements to perform multiple functions (substrate support, positioning, and printing coordination), reducing overall device complexity despite enabling dual-substrate processing
Solution Approach 2:
The printhead assemblies are integrated within or adjacent to the substrate holder structures, creating a nested arrangement where printing components are housed within the substrate support framework. This nesting reduces the overall system footprint and minimizes the number of separate components, thereby managing device complexity while maintaining concurrent processing capability
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 concurrent processing of two substrates, enhancing production efficiency by minimizing vibration and maintaining print accuracy through coordinated movement and gas cushion control.
Implementation Method 1
a substrate support having a gas floatation system to provide a gas cushion
Data Source
AI summary
Dual-substrate inkjet printers, processing systems using such printers, and methods of processing substrates using such printers are described herein. The dual-substrate inkjet printers have a substrate support, a print support extending across the substrate support and supporting a printhead assembly for dispensing material onto a substrate supported on the substrate support, a first substrate holder on a first side of the substrate support adjacent to a first substrate location on the substrate support to move a first substrate along the substrate support; and a second substrate holder on a second side of the substrate support opposite from the first substrate holder and adjacent to a second substrate location on the substrate support to move a second substrate along the substrate support.