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Factory address
Factory address: Yayao Town, Heshan City Jiangmen, Guangdong Province, China

Business office and transit warehouse address: 5th Floor, No.1 Buld, Dacheng jiancai Square, Guanchang Road, Dalingshan Town, Dongguan city, Guangdong Province, 523819
Phone number
+86 136 6295 5837

Prototype PCB Assembly

Prototype PCB Assembly is a fast, low-volume PCBA service used to verify the functionality, reliability, and manufacturability of new electronic designs before mass production. At Sayfu, we provide professional prototype PCB assembly services to help engineers quickly validate designs, identify potential issues, and optimize products with minimal cost and risk.

Send your PCB files and BOM list to [email protected] for a fast and accurate quote.

What Is Prototype PCB Assembly?

Prototype PCB Assembly (also known as PCBA prototype assembly, SMT prototype assembly, or PCB sample assembly) refers to the assembly of a small quantity of printed circuit boards for engineering validation and functional testing.

Prototype PCBA is a critical step in the product development cycle. It allows engineers to:

  • Verify circuit functionality
  • Detect design or layout issues
  • Test component compatibility
  • Optimize manufacturability before mass production

In most cases, 2–3 prototype iterations are required to ensure the design is stable and ready for volume production.

Recommended Quantity for Prototype PCB Assembly

Based on engineering best practices, Sayfu generally recommends:

  • 5 PCBs or 10 assembled units for prototype testing

However, 1–2 pieces are also acceptable if they meet verification requirements. Our flexible low-volume PCB assembly service is designed to support engineers at every development stage.

Why Prototype PCB Assembly Is Important Before Mass Production

Skipping or rushing the prototype stage can lead to costly design errors during mass production. Prototype PCB assembly helps to:

  • Reduce development risk
  • Shorten time-to-market
  • Improve overall product quality
  • Lower total manufacturing cost

Sayfu supports engineers throughout the entire design verification and validation (DVT) process with fast turnaround and reliable quality control.

Sayfu Prototype PCB Assembly Capabilities

We provide low-volume PCB assembly for prototyping with full engineering support, including DFM and DFT analysis, to eliminate potential issues before production.

Assembly capabilities include:

  • SMT and THT (through-hole) assembly
  • Mixed technology assembly (SMT + DIP)
  • Fine-pitch components, BGA, QFN support
  • Turnkey, partial turnkey, and consigned BOM options
  • Quick-turn prototype PCB assembly

Our experienced engineers carefully review and test your design files to ensure the correct prototype is fabricated and assembled right the first time.

Why Choose Sayfu for Prototype PCB Assembly?

Over 90% of our technical staff have more than 10 years of industry experience
Dedicated PCB design and layout engineering team
Professional and standardized design and review process
Support for high-speed, high-frequency, high-power

We fully consider EMI, EMC, and manufacturability during schematic review and PCB layout to ensure high reliability and performance.

Engineering Design & Software Support

Sayfu supports a wide range of schematic and PCB design software formats, including:

  • Cadence
  • Mentor EE / Mentor PADS
  • Altium Designer (including 99SE)

We also provide additional engineering services such as:

  • Impedance calculation
  • Stack-up and lamination design
  • EMC and EMI design analysis
  • QA and process inspection support

How We Guarantee High-Quality PCBA Assembly

Engineering & File Review

  • Technical data and specification analysis
  • Customer requirement and design rule check
  • DFM / DFT evaluation
  • Technical questions (TQ) feedback when necessary

Process & Quality Control

  • On-site quality inspectors and supplier audits
  • Fully equipped in-house PCB testing laboratory
  • Annual audits and spot audits
  • Dedicated quality engineers for process qualification

Certifications

All our manufacturing partners are certified to:

  • ISO9001
  • ISO14001
  • UL

Most partners are also certified to IATF 16949, with selected facilities holding ISO13485, AS9100, and ITAR certifications.

Testing & Inspection Equipment

Micro-Section & Analysis

  • Digital Microscope (Keyence VHX-5000)
  • Sample preparation and grinding machines

Plating & Material Testing

  • X-Ray System (Fisher XDML PCB 200)
  • Ionic contamination tester (Metronelec CT100-L)
  • Aging test and high-temperature oven (GWS EK-04)
  • Solderability and thermal stress testing

Mechanical Measurements

  • Bow & twist measurement
  • Surface roughness testing
  • V-cut and hole diameter inspection
  • 2D measurement system (Keyence IM-6225)

Get a Fast Quote for Prototype PCB Assembly

If you are looking for a reliable Prototype PCB Assembly manufacturer in China, Sayfu is ready to support your project.

Email: [email protected]
Send: Gerber files, PCB specs, and BOM list
Response: Fast quotation and engineering feedback