Vacuum etching machine

Vacuum Etching Machine

Vacuum Etching Machine

Vacuum Etching Machine

PCB Vacuum Etching Machine

Product Overview

Our PCB vacuum etching machine is a key precision production device for printed circuit board circuit forming processes. It is mainly used for the fine etching of inner and outer layer circuits of PCBs, removing redundant copper foil through a high-uniformity chemical etching system to form accurate and complete conductive circuit patterns. Different from traditional atmospheric etching equipment, the vacuum negative pressure design effectively eliminates liquid accumulation, air bubbles and etching dead zones on the board surface. It delivers ultra-stable and uniform etching effects for fine-line PCBs, high-density HDI boards, heavy copper PCBs, thin-core boards and high-frequency substrate boards, ensuring consistent circuit width and impedance stability to meet high-end electronic manufacturing quality standards.

Core Advantages

Ultra-uniform Etching, Minimal Side Etching: Adopting vacuum negative pressure circulation technology, the etching solution fully contacts the board surface without blind spots. It effectively suppresses side etching phenomena, ensures straight circuit side walls and accurate line width control, and greatly improves the yield of ultra-fine circuit production.
Strong Adaptability for High-Difficulty Boards: Optimized liquid circulation and spraying structure enables stable etching processing for 0.05mm ultra-thin core boards, thick copper boards with 3oz/4oz copper thickness, high-layer-count multi-layer boards and special high-frequency materials. It solves common defects such as uneven etching and incomplete circuit development in traditional processes.
Stable Impedance Control: Consistent etching speed and uniform solution concentration ensure unified line width and line thickness of batch products. It effectively controls PCB impedance deviation, providing reliable technical support for high-precision circuit boards used in communication, automotive and industrial fields.
Intelligent Constant Temperature & Liquid Circulation System: Equipped with intelligent constant temperature control, automatic liquid replenishment and filtration circulation functions. It keeps the etching solution concentration, temperature and spray pressure in a stable state for a long time, avoiding batch quality differences caused by solution attenuation and temperature fluctuation.
Energy-saving, Environmental & Low Maintenance: The fully closed vacuum structure reduces liquid volatilization and reagent consumption, lowering production costs. The anti-corrosion equipment body and precision filter device reduce impurity residue, decrease daily maintenance frequency, and support long-term uninterrupted mass production.

Technical Parameters

Processing Board Size: Supports standard large-format PCB panels (customizable)
Applicable Board Thickness: 0.05mm – 5.0mm
Applicable Copper Thickness: 0.5oz – 4oz heavy copper
Line Width Accuracy: ±0.02mm
Etching Uniformity: ≥98%
Applicable Processes: Inner layer etching, outer layer etching, fine circuit forming
Compatible Board Types: Multi-layer PCB, HDI high-density board, heavy copper PCB, ultra-thin core board, high-frequency PCB
Operation Mode: Intelligent automatic circulation, continuous batch production

Company Equipment Strength

To meet the mass production and high-precision processing requirements of high-end PCB circuits, our factory is equipped withmultiple sets of advanced fully automatic vacuum etching machines, forming a standardized and intelligent fine etching production cluster. All equipment adopts upgraded industrial-grade configurations and is regularly calibrated and maintained by professional technicians to ensure long-term stable operation and consistent etching accuracy. With sufficient equipment capacity, we can undertake large-batch orders of fine-line boards, heavy copper boards and HDI boards while supporting flexible small-batch proofing production. Matched with complete front-end exposure, developing and back-end inspection processes, our equipment cluster effectively reduces defective rates, stabilizes product quality, shortens production cycles, and strongly supports our high-quality and high-efficiency delivery capabilities for global customers.

Application Scope

The vacuum etching machine is widely applied in the precision manufacturing of high-end printed circuit boards. It is core processing equipment for automotive electronic PCBs, 5G communication high-frequency boards, server high-density boards, industrial control precision circuit boards and medical electronic PCBs. It provides accurate and stable circuit forming guarantees for high-performance PCB products, helping customers obtain highly consistent and reliable circuit board finished products.