Turnkey PCB Assembly Solution from Design to Final Functional Testing

SZH​‍​‌‍​‍‌ has its own fully self-contained production plant with several high-precision SMT lines at the core, and additionally DIP, testing, and assembly lines. Thus, they can provide flexible manufacturing from prototype up to mass PCB assembly.
High-Precision SMT Lines: Able to mount 01005 components, 0.3mm pitch BGA, QFN, and other fine-pitch packages.
Complete Process Coverage: SMT double-sided, mixed assembly, selective soldering, and press-fit technology are all included.
Strict Quality Control: Inspection throughout the whole process with SPI, AOI, X-Ray, functional testing, and aging test ​‍​‌‍​‍‌systems.

  • SZH
  • China
  • Information

Complete End-to-End PCBA Service

We offer a Turnkey PCB Assembly Solution that delivers you with a smooth, integrated service which essentially is getting your electronic products from a mere thought right throught to a market-ready finished products. We handle the whole process for you: from design and sourcing to manufacturing, testing, and final assembly and so on, providing you with a single point of accountability, less time-to-market, and utmost quality for your electronic projects.


Our Integrated Service Workflow

1. Design Support & Optimization

  • PCB Layout & Design: The engineering devision taps into state-of-the-art EDA software to unravel and enhance the circuit layout, signal integrity, power distribution, and thermal management.

  • Design Verification: Perfoem simulations and analysis to discover possible problems at an early stage, thus making design iterations less necessary.

  • Design for Manufacturability (DFM) Review: You send us your design and we check if it can be made efficiently, reliably, and cost-effectively.

  • Design for Testability (DFT) Planning: Integrate test points and diagnostic access to facilitate comprehensive post-assembly testing.

2. Component Sourcing & Supply Chain Management

  • Global Procurement Network: Access to a large network of certified suppliers with authentic, top-quality components.

  • BOM Optimization & Alternate Sourcing: We offer value-engineering ideas and take care of component alternates to mix cost, performance, and availability.

  • Inventory & Logistics Management: By using just-in-Time (JIT) material handling, we help you decrease your capital burden and storage needs.

  • Supply Chain Risk Mitigation: To get through market shortages and price fluctuations, the proactive multi-sourcesourcing strategies are just.

3. High-Quality PCB Fabrication

  • Multi-layer Expertise: Capabilities from simple single-sided to complex 20+ layer boards.

  • Advanced Technologies: HDI, rigid-flex boards, blind/buried vias, and other specialized structions.

  • Strict Quality Inspection: 100% electrical testing, Automated Optical Inspection (AOI), and impedance control.

  • Material Variety: FR-4, high-frequency laminates, metal-core, and more to meet application-specific requirements.

4. Precision SMT & Through-Hole Assembly

  • High-Speed SMT Lines: Utilizes the most advanced pick-and-place equipment, capable of handling components as small as 01005 size and micro BGA packages.

  • Comprehensive Soldering Processes: Offers reflow soldering, selective soldering, and wave soldering to meet diverse assembly requirements.

  • IPC-Certified Team: Skilled operators adhering to the highest industry process standards.

  • Process Quality Control: Real-time monitoring through solder paste inspection (SPI) and automated optical inspection (AOI) to prevent defects.

5. Comprehensive Testing and Validation

  • In-Circuit Test (ICT): Verifies the presence, orientation, and basic functionality of components.

  • Flying Probe Test: A flexible electrical testing solution suitable for prototypes and small batch production.

  • Functional Test (FCT): Simulates real operating conditions to verify the complete performance of the product.

  • Boundary Scan Test: Advanced debugging and testing for complex digital circuits.

  • Environmental Stress Screening (ESS): Ensures product reliability and screens out early failures.

  • Automated Test Equipment (ATE): Custom test fixtures to achieve efficient and repeatable production testing.

6. Final Assembly & Packaging

  • System Integration: Installation of PCBA into enclosures, with final mechanical assembly.

  • Connector and Wiring Harness Assembly: Installation of all peripheral connections and wiring.

  • Product Labels and Serial Numbers: Application of brand, compliance labels, and unique serial numbers.

  • Custom Packaging: Tailored packaging solutions for safe transportation and retail display.


Our Technical Capabilities and Quality Commitment

Advanced Manufacturing Equipment

  • High-Precision SMT Placement Machines

  • 3D Solder Paste Inspection (SPI) Systems

  • BGA/QFN Automated Optical Inspection (AOI) and X-ray Inspection

  • In-Circuit Test (ICT) and Functional Test Equipment

  • Environmental Test Chambers

Flexible Production Models

  • Prototyping: Quickly complete design validation (5-10 working days).

  • Small/Trial Production: Flexible production lines suitable for 50-500 units.

  • Mass Production: Automated production lines supporting millions of units per month.

  • Scalability: Seamless transition from prototype to mass production.


Industries We Serve

Our solutions drive innovation across various industries:

Consumer electronics, industrial automation, medical devices, automotive electronics, communications, Internet of Things (IoT), and more


Why Choose Our Turnkey PCBA Solutions?

  1. Accelerated Time-to-Market: Single-source accountability eliminates supplier coordination delays, reducing cycle time by 30-50%.

  2. Lower Overall Costs: Optimized design, integrated supply chain, and efficient production reduce total project costs.

  3. Mitigated Risks: Professional management of technology, component availability, and production risks.

  4. Uncompromised Quality: End-to-end control ensures consistent and reliable output that meets your specifications.

  5. Expert Partnership: Dedicated engineering support guides you from concept to production.

  6. Seamless Scalability: Easily scale from prototype to large-scale production without requalifying new suppliers.


KickstartYour Project With Us

Simply share your design files (Gerber, BOM, Schematics) and requirements. We will provide:

  1. A detailed project analysis and quotation within 24-48 hours.

  1. Rapid prototyping to validate your design..

  2. Smooth pilot runs to verify the process.

  3. High-quality mass production on schedule.

Get in touch with our customer service team today to receive a customized solution. Let us help you efficiently and effectively turn your ideas into reliable, market-ready products.

Your Vision. Our Process. Perfectly Executed Products.


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