This 4-layer FR4 PCB addresses the needs of industrial control and automation systems that require a balance of compact design, reliable performance, and versatile component integration. Mit Dimensionen von 107.03×42.80mm und a 1.6mm Dicke, the board offers a space-efficient platform for mounting microcontrollers, Kommunikationsschnittstellen, and power management components in devices such as sensor nodes, motor controllers, and industrial gateways. Gebaut von FR4 -Material, it provides stable electrical insulation (Dielektrizitätskonstante εr = 4,5) and mechanical rigidity, suitable for operation in environments with moderate vibration and temperature fluctuations.

Ebenenarchitektur & Power-Signal Separation

  • 4-Ebenenstapel:
    • 2 Signalschichten + 2 power/ground planes to minimize electromagnetic interference (EMI)
    • Inner layers optimized for split power domains (Z.B., 5V/3,3 V) and ground plane isolation
  • 1Oz (35μm) Kupferdicke:
    • Unterstützt mäßige Stromlasten (bis zu 8a pro breiter Spur) für leistungshungrige Komponenten
    • Copper pour areas on power planes reduce voltage drop and thermal hotspots

Industrial-Grade Design Features

  • Blaue LPI-Lötmaske:
    • Enhances visual contrast for component identification in dense layouts
    • Chemical resistance against industrial solvents and cleaning agents
  • Rätseloberfläche:
    • 3–5μm Nickelschicht verhindert Korrosion in rauen Umgebungen
    • 0.05–0.1μm gold layer ensures reliable solder joints for both SMT and DIP components
  • Gemischte SMT+DIP-Fähigkeit:
    • SMT: Hohe Platzierungsdichte von 0201 Passive Komponenten, QFP ICs, and BGA packages (0.5MM -Tonhöhe)
    • TAUCHEN: Durchsteckmontage für robuste Steckverbinder (Z.B., Klemmenblöcke, RJ45 ports) und Relais

Herstellung & Qualitätskontrolle

  • Präzisionsfertigung:
    • Laser Direct Imaging (LDI) for 75μm line/space accuracy in signal traces
    • Electrolytic copper plating with uniform thickness across all layers
  • Umfassende Tests:
    • 100% automatisierte optische Inspektion (Aoi) für Lötstoppmaskenabdeckung und Siebdruckklarheit
    • Flying-Probe-Prüfung auf elektrischen Durchgang (≤ 0,1o) und Isolation (≥100 mΩ)
    • Thermalradfahren (-40° C bis +85 ° C., 500 Zyklen) um die Zuverlässigkeit zu überprüfen
  • Einhaltung von Standards:
    • IPC-6012 Klasse 2 für Industrieelektronik
    • RoHS/REACH-konform für Bleifreiheit und Beschränkungen für gefährliche Stoffe

Industrielle Anwendungen

  • Industrial IoT Sensors:
    Integriert Temperatur-/Feuchtigkeitssensoren, wireless modules (Wi-Fi/Bluetooth), and data processing circuitry.
  • Motor Control Modules:
    Manages low-voltage motors in conveyor systems, with PWM control and current sensing.
  • Communication Gateways:
    Enables protocol conversion (Z.B., RS-485 to Ethernet) for smart factory networks.
  • Portable Test Equipment:
    Supports compact measurement devices for on-site industrial diagnostics.

 

By combining 4-layer signal isolation, 1OZ copper conductivity, and mixed assembly flexibility, this PCB enables engineers to build robust industrial control systems in a compact form factor. The blue solder mask and ENIG finish balance visual identification with long-term reliability, while the 107.03×42.80mm layout optimizes space for both high-density components and field-wired connections. Unterstützt von ISO 9001:2015 Zertifizierung, it delivers consistent performance for applications where size, Haltbarkeit, and functionality are critical.