AOI scanning machine

AOI Inspection

AOI Inspection

PCB Inner & Outer Layer AOI Automatic Optical Inspection Machine

Product Overview

Our PCB AOI (Automatic Optical Inspection) machine includes professional models for inner layer inspection and outer layer inspection, serving as the core quality inspection equipment in the PCB manufacturing process. The inner layer AOI is specially used for defect detection of inner circuit patterns before lamination, while the outer layer AOI focuses on finished outer circuit inspection after etching. Adopting high-resolution industrial vision scanning and intelligent AI algorithm recognition technology, the equipment automatically captures, compares and analyzes PCB circuit images. It can accurately identify tiny defects that are difficult to detect by human eyes, effectively solving the problems of low manual detection efficiency, high missed detection rate and unstable quality. It is widely applicable to quality inspection of multi-layer boards, HDI boards, thick copper boards, high-frequency boards and precision consumer electronic circuit boards.

Core Advantages

Dual Models for Inner & Outer Layer Professional Inspection: Targeted optimized algorithms for inner layer and outer layer processes respectively. The inner layer AOI accurately judges open circuits, short circuits, line gaps and copper residue before lamination, avoiding batch defective lamination waste. The outer layer AOI comprehensively inspects finished circuit flaws such as line distortion, pinholes, scratches and oxidation defects, achieving full-process quality control.
High-precision AI Intelligent Recognition: Equipped with ultra-high-definition industrial camera and multi-angle light source system, it supports micron-level defect capture. The self-learning AI algorithm effectively filters false defects, greatly improving detection accuracy and stability. It can stably identify ultra-fine line defects of high-density HDI boards, ensuring zero missed detection of key quality risks.
High Efficiency & Cost Saving: Fully automatic scanning and intelligent detection replace traditional manual visual inspection. The machine features fast scanning speed and large single-panel detection range, which greatly improves production inspection efficiency and reduces labor costs. It effectively avoids quality complaints and rework losses caused by human missed detection, realizing overall production cost reduction.
Powerful Compatibility for Various PCB Types: Adaptable to various board thicknesses, copper thicknesses and special substrate materials, including ultra-thin core inner layers, thick copper outer layers, high-frequency materials and aluminum substrates. It supports inspection requirements from small-batch prototype proofing to large-scale mass production with strong production flexibility.
Intelligent Data Recording & Traceability: The equipment automatically saves inspection data, defect images and statistical reports, realizing full-process quality traceability. It helps the production team optimize front-end processes, reduce repeated defects, and continuously improve PCB production yield and quality stability.

Technical Parameters

Equipment Type: Inner Layer AOI Inspection Machine / Outer Layer AOI Inspection Machine
Minimum Detectable Defect: 0.01mm micron-level tiny flaw
Inspection Accuracy: ≥99.8% recognition rate, ultra-low false detection rate
Applicable Board Thickness: 0.05mm – 6.0mm
Applicable Line Width Range: Ultra-fine line 0.03mm and above
Compatible Board Types: Multi-layer PCB, HDI high-density board, heavy copper PCB, ultra-thin core board, high-frequency PCB
Working Mode: Fully automatic feeding, scanning, identification and data recording
Data Function: Automatic defect classification, report export, full quality traceability

Company Equipment Strength

To build a rigorous full-process quality control system, our company is equipped with a complete set of advanced inner and outer layer AOI automatic inspection equipment, forming a full-coverage quality inspection cluster for front-end inner layer and back-end outer layer processes. All AOI machines adopt industry-leading AI visual inspection systems, with stable operation and long-term accurate detection capabilities. We support 24-hour uninterrupted batch inspection production, which completely makes up for the instability of manual inspection. Through 100% full inspection of PCB inner and outer circuits, we effectively control defective products from entering the next process, greatly improving the final finished product yield. Perfect matching with front-end exposure, etching and pressing processes ensures that every batch of PCB products delivered to customers meets high-standard quality requirements, highlighting our strict quality control system and strong comprehensive production strength.

Application Scope

Dual inner and outer layer AOI inspection equipment is widely used in the precision quality inspection of high-end PCBs. It is essential quality guarantee equipment for automotive electronics, 5G communication equipment, server hardware, industrial control equipment, medical electronics and smart wearable product circuit boards. It provides reliable precision detection support for high-density, high-precision and high-reliability PCB products, ensuring stable and consistent product quality for global customers.