Line Source

A line evaporation source is a PVD device designed for large-area uniform deposition. It uses a linear heating element, such as a metal wire or strip source, to evaporate materials, making it suitable for coating large substrates. This type of evaporation source is widely used in industrial-scale production due to its high efficiency and excellent large-area uniformity. It typically operates based on resistive heating, ensuring a simple and reliable evaporation process.

Characteristic

Excellent Uniformity: The linear design provides consistent evaporation distribution, ensuring uniform thin-film thickness across large-area substrates and minimizing edge effects.

High Stability: Uses robust heating elements and control systems to maintain stable evaporation performance during continuous operation, making it suitable for mass production.

High Material Utilization Efficiency: The optimized linear structure reduces material residue, achieving utilization rates typically above 85%, offering both economic and environmental benefits.

Easy Operation: Designed for simple installation and maintenance, reducing downtime and improving overall production efficiency.

Parameter

Property	Unit	Value
Evaporation Rate	Å/s	1–20 (adjustable)
Power Range	W	500–10,000
Temperature Range	°C	200–600
Line Length / Size	mm	Standard 100–500 (customizable)
Current Requirement	A	10–100 (AC/DC)
Material Compatibility	—	OLED organic material evaporation
Vacuum Requirement	mbar	Base pressure ≤ 5×10⁻⁵
Service Life	—	>2000 hours (depending on material and usage conditions)

Application field solutions

Large-Area OLED Panel Evaporation: Used for organic layer deposition in large-size OLED panels, ensuring uniform coating over wide areas and supporting mass-production lines.

Flexible / Roll-to-Roll Coating Processes: Suitable for flexible OLED and thin-film solar cell continuous deposition processes, improving production efficiency.

Research / Industrial Thin-Film Deposition: Used for large-area thin-film sample preparation and advanced material process validation, balancing uniformity and process stability.

Batch Industrial Coating Applications: Applicable to large-area, high-throughput industrial coating environments, enabling high-efficiency and low-cost production.