Specific Process Knowledge/Polymer Processing/Polymer Processing/Coating/Slot Die Coater: Difference between revisions
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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. | ''The content on this page, including all images and pictures, was created by DTU Nanolab staff, unless otherwise stated.'' | ||
'''Feedback to this page''': '''[mailto:labadviser@danchip.dtu.dk?Subject=Feed%20back%20from%20page%20http://labadviser.danchip.dtu.dk/index.php/Specific_Process_Knowledge/Polymer_Processing/Polymer_Processing_Coating_Slot_Die_Coater click here]''' | |||
[[File:SDC.jpg|400px|right]] | |||
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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'''. | |||
=== 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 | 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. | ||
=== Technical Specifications=== | |||
* Precision slot-die head (available in different coating widths- 25 mm, 50 mm, and 100 mm) with (up to 80 °C) or without heating | |||
* Integrated Syringe pump from 1ml to 300 ml, with or without heating | |||
* Heated(up to 200 °C) vacuum chuck with substrate holder dimension: 520 mm x 500 mm | |||
* Microporus vacuum dimensions: 305 mm x 305 mm | |||
* Coating width: 1 mm to 500 mm, length: up to 470 mm | |||
* Coating speed: 0.01 up to 5.0 m/min | |||
=== Key Features === | |||
* Laser gap height alignment system for precise height measurement | |||
* Drying/curing modules (hot air) | |||
* Motorized X-Y-Z coating bridge for accurate positioning | |||
* High coating precision with micrometre-level positioning | |||
* Uniform thin-film deposition with excellent repeatability | |||
* Compatible with multiple slot-die head sizes | |||
* Computer-controlled software for process control and recipe storage | |||
* Software-controlled process parameters with recipe storage | |||
=== Factors Affecting Coating Quality === | |||
The quality and thickness of the coating depend on several processing parameters: | |||
* Coating solution viscosity | |||
* Flow rate of the coating liquid | |||
* Slot gap (distance between die and substrate) | |||
* Substrate speed | |||
* Coating width | |||
* Drying temperature and rate | |||
* Surface tension and wettability of the substrate | |||
=== | Equipment info in [http://labmanager.dtu.dk/function.php?module=Machine&view=view&mach=548 LabManager] - '''requires login''' | ||
Latest revision as of 11:59, 9 July 2026
The content on this page, including all images and pictures, was created by DTU Nanolab staff, unless otherwise stated.
Feedback to this page: click here
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
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.
Technical Specifications
- Precision slot-die head (available in different coating widths- 25 mm, 50 mm, and 100 mm) with (up to 80 °C) or without heating
- Integrated Syringe pump from 1ml to 300 ml, with or without heating
- Heated(up to 200 °C) vacuum chuck with substrate holder dimension: 520 mm x 500 mm
- Microporus vacuum dimensions: 305 mm x 305 mm
- Coating width: 1 mm to 500 mm, length: up to 470 mm
- Coating speed: 0.01 up to 5.0 m/min
Key Features
- Laser gap height alignment system for precise height measurement
- Drying/curing modules (hot air)
- Motorized X-Y-Z coating bridge for accurate positioning
- High coating precision with micrometre-level positioning
- Uniform thin-film deposition with excellent repeatability
- Compatible with multiple slot-die head sizes
- Computer-controlled software for process control and recipe storage
- Software-controlled process parameters with recipe storage
Factors Affecting Coating Quality
The quality and thickness of the coating depend on several processing parameters:
- Coating solution viscosity
- Flow rate of the coating liquid
- Slot gap (distance between die and substrate)
- Substrate speed
- Coating width
- Drying temperature and rate
- Surface tension and wettability of the substrate
Equipment info in LabManager - requires login