40Khz Ultrasonic Wide Scattering Thin Film Ultrasonic Coating
Nozzles Nebulization Device
Description:
The typical application of scattering type ultrasonic nozzles is
the photoresist coating on semiconductor chips, where the
photoresist is sprayed onto the semiconductor chips. Due to the
rotational scattering of mist emitted by the scattering type
ultrasonic nozzle, a uniform photoresist film can be formed not
only on the wafer plane, but also on the sidewalls and corners of
the wafer microstructure. In addition, scattering ultrasonic
nozzles can also be used for thin film solar cell coatings, calcium
titanate solar cell coatings, AR transmission and reflection film
coatings, insulation film coatings, superhydrophobic coating
coatings, PCB flux coatings, and other applications.
Parameters:
| Model | FSW-4002-L |
| Name | 40Khz Scattering Ultrasonic Nozzle Atomization |
| Frequency | 40Khz |
| Atomized particle size range(μm) | 15-40 |
| Spray width(mm) | 40-80 |
| Spray flow(ml/min) | 0.5-20 |
| Spray height(mm) | 30-80 |
| Liquid viscosity (cps) | <30 |
| Particle size (μm) | <15 |
| Diversion pressure (Mpa) | <0.05 |
| Application | Suitable for Photoresist coatings on semiconductor chips |
Ultrasonic spraying is a spraying technology that uses ultrasonic
vibration to produce spray. The working principle can be summarized
as follows:
Ultrasonic vibration generation: The ultrasonic spraying machine
contains an ultrasonic generator inside, which generates
high-frequency electrical signals. These electrical signals are
converted into mechanical vibrations through transducers (also
known as vibrators or transducers).
Working principle of transducers: Transducers are usually made of
piezoelectric ceramic materials, such as piezoelectric crystals.
When an electrical signal is applied to a piezoelectric material,
it causes the material to shrink and expand, resulting in
mechanical vibration.
1. Liquid spray formation: the transducer is connected to the
liquid spray system, usually a nozzle or liquid reservoir. When the
transducer vibrates, it transfers vibration energy to the liquid in
the spraying system. This mechanical vibration acts on the liquid,
generating intense liquid motion and shear forces.
2. Liquid shear and atomization: The violent movement and shear
force of the liquid cause the formation of small droplets. These
droplets are atomized in the spraying system and form spray.
3. Spraying process: the generated spray can be directionally
sprayed onto the target surface through appropriate nozzles and
spraying parameters. The size and distribution of spray particles
can be controlled by adjusting the frequency, amplitude of
ultrasonic vibration and spraying parameters.
In general, ultrasonic spraying uses ultrasonic vibration to
generate a strong liquid shear force, which converts the liquid
into tiny spray particles to achieve a fine and uniform spraying
effect. This spraying technology has a wide range of applications
in many fields, such as coatings, coatings, inkjet printing, and so
on.
40Khz Ultrasonic Wide Scattering Thin Film Ultrasonic Coating
Nozzles Nebulization Device
