ANDROID-BASED SPIN COATING MONITORING

Agus Ismangil, Nanang Nanang

Abstract


The spin coating technique can produce very thin layers by utilizing centrifugal force,
linear shear stress and uniform evaporation of the solution on a rotating disk or substrate.
The thin layer produced by the spin coating method has a high level of homogeneity. The
desired thickness and quality of the coating can be controlled based on the viscosity or
viscosity of the solution, material content, time, and speed of rotation of the spin coater.
The research method used to develop this research is the instrumentation research method
of the spin coating device which detects spin on the disc. This system uses an ESP32
Microcontroller, Hall effect Magnet Sensor, Diodes, DC Motor, LCD 165x2 i2c, Mosfet
and smartphone. The results obtained are that this Spin Coating tool can rotate with a
maximum speed of 3000 rpm, and a minimum speed of 1000 rpm. Although there is still
noise at certain speeds caused by the less stable data transmission process and less
sensitive response from the sensor, as a whole, the spin coating tool can rotate at a certain
speed by monitoring using android.

Keywords


coating, spin coating, smartphone, speed

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References


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DOI: http://dx.doi.org/10.31153/instrumentasi.v47i2.307

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