Viscous Liquid Aerosol Ejection Nozzle for Fine Line Dispensing
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Solution Overview
Problem
In semiconductor and electronic manufacturing, precise dispensing of viscous liquids with fine line widths is challenging due to inaccuracies in location and volume, especially when using conventional pumps, which can lead to product defects.
Innovation Solution
A compact apparatus that converts viscous liquids into aerosols using compressed gas and delivers them through a nozzle, featuring an atomizer, ejection head, and operating valve to achieve precise and fine line-width dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional pump (piezoelectric pump or screw pump) is used to dispense viscous liquid, then the dispensing process is simple, but the dispensing location and volume accuracy deteriorates, leading to inability to achieve fine line width and tens to hundreds of micrometers precision
Solution Approach 1:
The patent replaces the conventional mechanical pump system with a pneumatic aerosol generation system. Compressed gas is introduced into a chamber containing viscous liquid to generate aerosols, which are then delivered through a nozzle. This substitution of mechanical pumping with pneumatic atomization enables fine line width dispensing with tens to hundreds of micrometers precision while avoiding the accuracy limitations of conventional pumps.
Solution Approach 2:
The patent changes the physical state and delivery form of the viscous liquid from direct liquid dispensing to aerosol form. By controlling parameters such as compressed gas pressure, chamber geometry, and nozzle characteristics, the system achieves precise control over aerosol generation and delivery, enabling accurate dispensing location and volume control that cannot be achieved with conventional mechanical pumps.
2Manufacturing precision
If an aerosol method is used to dispense viscous liquid, then the dispensing precision and fine line width are improved, but the device size and complexity increase
Solution Approach 1:
The patent integrates the chamber, atomizer, and nozzle into a single compact aerosol generation and delivery unit. The chamber is formed in a container shape and installed in a support body, with the atomizer positioned to convert liquid to aerosol, and the nozzle integrated into the chamber structure. This merging of components achieves high dispensing precision while maintaining a compact device footprint suitable for various work types.
Solution Approach 2:
The patent employs a nested structure where the chamber is installed within a support body, the atomizer is mounted on the chamber, and the nozzle is integrated into the chamber wall. This nested arrangement of components maximizes space utilization and creates a compact device structure that delivers high precision aerosol dispensing without excessive device volume.
3Manufacturing precision
If an aerosol method is used to dispense viscous liquid, then the pattern sophistication is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the aerosol generation function from a complex multi-component system and implements it through a simplified integrated chamber-nozzle-atomizer structure. By taking out the essential aerosolization mechanism and implementing it through a compact integrated design rather than multiple separate components, the system achieves sophisticated pattern dispensing capability while minimizing device structural complexity.
Solution Approach 2:
The integrated chamber-nozzle-atomizer structure serves multiple functions simultaneously: the chamber stores and pressurizes the liquid, the atomizer converts liquid to aerosol, and the nozzle delivers the aerosol with precise positioning. This multi-functional integration achieves sophisticated dispensing patterns while reducing overall device complexity compared to separate specialized components for each function.
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 precise and fine line-width dispensing of viscous liquids, improving pattern sophistication and accuracy compared to conventional pumps, while maintaining a compact and easy-to-maintain device structure.
Implementation Method 1
an atomizer (300) installed on the chamber (200) to convert the viscous liquid into a form of aerosol
Data Source
AI summary
Provided is an apparatus for ejecting viscous liquid aerosol, and more particularly, an apparatus for ejecting viscous liquid aerosol capable of dispensing a viscous liquid to a work with a fine line width by ejecting the viscous liquid in the form of aerosols. The apparatus for ejecting viscous liquid aerosol may be configured compactly by miniaturizing a device capable of aerosolizing and ejecting viscous liquid in the form of aerosols. In addition, since the apparatus for ejecting viscous liquid aerosol has a structure that is easy to miniaturize, it is easy to uniformly maintain the characteristics of aerosol.