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Specific Process Knowledge/Polymer Processing/Polymer Processing/Coating/Slot Die Coater: Difference between revisions

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Meenadh (talk | contribs)
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A '''slot die coater''' is a precision coating device used to apply a thin, uniform layer of liquid material onto a moving substrate. It is widely used in industries such as electronics, batteries, solar cells, flexible displays, pharmaceuticals, and packaging because it provides accurate control over coating thickness with minimal material waste. In PolyFabLab, we have an '''AlphaSC Sot die coater from FOM technologies'''.
A ''' slot die coater''' is a precision coating device used to apply a thin, uniform layer of liquid material onto a moving substrate. It is widely used in industries such as electronics, batteries, solar cells, flexible displays, pharmaceuticals, and packaging because it provides accurate control over coating thickness with minimal material waste. In PolyFabLab, we have an '''AlphaSC Sot die coater from FOM technologies'''.


=== Working Principle ===
=== Working Principle ===
A slot-die coater operates by delivering a controlled flow of coating solution from a syringe pump into a precision-engineered slot-die head. The liquid exits through a narrow slit and is deposited as a uniform thin film onto a moving substrate (sheet). The coated substrate is subsequently dried or cured using integrated hot-air, substrate heater, or other drying modules, depending on the material system.
A slot-die coater operates by delivering a controlled flow of coating solution from a syringe pump into a precision-engineered slot-die head. The liquid exits through a narrow slit and is deposited as a uniform thin film onto a moving substrate (sheet). The coated substrate is subsequently dried or cured using an integrated hot-air or substrate heater.


=== Main Component ===
=== Main Component ===
* Precision slot-die head (available in different coating widths)
 
* Integrated syringe
* Precision slot-die head (available in different coating widths- 25 mm, 50 mm, and 100 mm) with/without heating
* Syringe with/without heating
* Motorized X-Y-Z coating bridge for accurate positioning
* Motorized X-Y-Z coating bridge for accurate positioning
* Heated vacuum chuck (sheet-based systems)  
* Heated vacuum chuck (sheet-based systems)with/without heating 
* Drying/curing modules (hot air)
* Drying/curing modules (hot air)
* Computer-controlled software for process control and recipe storage
* Computer-controlled software for process control and recipe storage
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=== Key Features ===
=== Key Features ===


* Optical gap height alignment system
* Laser gap height alignment system for precise height measurement
* High coating precision with micrometre-level positioning
* High coating precision with micrometre-level positioning
* Uniform thin-film deposition with excellent repeatability
* Uniform thin-film deposition with excellent repeatability
* Low material consumption and minimal waste
* Compatible with multiple slot-die head sizes  
* Compatible with multiple slot-die head sizes (we have 25, 50 and100 mm SD)
* Software-controlled process parameters with recipe storage
* Software-controlled process parameters with recipe storage


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