ISO Certified Multilayer PCB Assembly (Up to 32L)

SZH operate a fully self-owned production base equipped with multiple high-precision SMT lines, complemented by DIP, testing, and assembly lines. This enables flexible production from prototyping to large-scale PCB assembly.
High-Precision SMT Lines: Support 01005 components, 0.3mm pitch BGA, QFN, and other fine-pitch package assembly.
Full-Process Coverage: Including double-sided SMT, mixed assembly, selective soldering, and press-fit technology.
Rigorous Quality Control: Full-process inspection with SPI, AOI, X-Ray, functional testing, and aging test systems.

  • SZH
  • China
  • Information

Product Overview

Our ISO-certified multilayer PCB assembly service provides a comprehensive solution from prototyping to mass production, designed for electronic devices requiring high performance, reliability, and complex routing. With manufacturing capabilities of up to 32 layers, we meet the most demanding requirements for industrial, medical, aerospace, and telecommunications applications.

Core Advantages

ISO-Certified Quality System

  • ISO 9001:2015 Quality Management System Certified

  • ISO 14001 Environmental Management System Certified

  • Fully traceable production process

  • Compliant with international electronics manufacturing standards

Advanced Manufacturing Capabilities

  • Layer Range: 2 to 32-layer multilayer PCBs

  • Board Thickness: 0.4mm to 6.0mm

  • Min. Line Width/Spacing: 3/3 mil

  • Surface Finish: ENIG, Immersion Silver, OSP, HASL, etc.

  • Material Options: FR-4, High-Frequency Materials, High-Tg Materials, Aluminum Substrates, etc.

Technical Specifications

ParameterSpecification
Maximum Layers32 layers
Board Thickness Tolerance±10%
Minimum Hole Size0.15mm
Copper Thickness Range0.5oz to 6oz
Impedance Control±10%

PCBA Assembly Capabilities

ProcessDescription
Component Types01005, BGA, QFN, CSP, etc.
Placement Accuracy±0.025mm
Soldering ProcessLead-free soldering, Selective soldering
Inspection TechnologyAOI, X-ray, Flying Probe Test
Conformal CoatingOptional, IPC compliant

Application Fields

 Medical Equipment

  • Medical imaging systems

  • Patient monitoring devices

  • Portable diagnostic instruments

 Aerospace & Aviation

  • Flight control systems

  • Communication and navigation equipment

  • Avionics systems

 Communication Equipment

  • 5G base station equipment

  • Network switching devices

  • Satellite communication systems

 Industrial Control

  • PLC control systems

  • Industrial automation equipment

  • Power monitoring systems

Quality Control Process

1. Incoming Material Inspection

  • Certified component suppliers

  • Material batch traceability system

  • 100% inspection of critical parameters

2. In-Process Control

  • Real-time SMT process monitoring

  • Reflow soldering profile optimization

  • ESD protection measures

3. Final Product Testing

  • Functional Circuit Test (FCT)

  • In-Circuit Test (ICT)

  • Environmental reliability testing


Why Choose Us?

 Expert Team

  • Engineers with 10+ years of PCB industry experience

  • Professional DFM analysis capabilities

  • 24/7 technical support

 Complete Supply Chain

  • Partnerships with globally renowned component suppliers

  • Secure inventory management system

  • Component alternates consultation

 Confidentiality & Security

  • Strict NDA agreements

  • Isolated customer data management

  • IP protection measures

Frequently Asked Questions

Q: What is the typical lead time for a 32-layer PCB?

A: Standard lead time is 18-25 working days, depending on design complexity and material availability.

Q: Do you support low-volume prototyping?

A: Yes, we offer full-range services from 1-piece prototypes to high-volume production.

Q: How do you ensure quality of hidden solder joints like BGAs?

A: We utilize high-resolution X-ray inspection equipment to ensure 100% inspection of all hidden solder joints.

Q: Do you provide design support services?

A: Yes, our engineering team offers free DFM/DFA design optimization advice.


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