PCBA Assembly and Box Build

Bring your electronic products to life with Qual-Pro’s precision PCBA assembly and comprehensive box build services.     

What is PCBA Assembly?

Printed Circuit Board Assembly (PCBA) refers to the precise process of placing and soldering electronic components onto a bare printed circuit board. These components — such as microcontrollers, capacitors, resistors, and connectors — are mounted using advanced technologies like:

  • Surface Mount Technology (SMT) for high-density, miniaturized circuit designs.
  • Through-Hole Assembly for larger components requiring secure mechanical strength.
  • Mixed Technology Assembly where both methods are combined for complex builds.

The final result is a fully functional circuit board that serves as the operational core of your electronic device. The accuracy of this process directly impacts product performance, reliability, and long-term durability — which is why precision matters at every stage.

What is Box Build?

Once PCBA is complete, the product moves into the box build phase — sometimes called system integration or final assembly. Here, fully assembled circuit boards are installed into custom-designed enclosures or housings, along with:

Box build completes the transformation from an assembled PCB to a finished, fully integrated product, ready for end-customer shipment or installation. This stage demands not only technical skill, but also strict process control to ensure repeatable quality, functional integrity, and compliance with customer specifications.

  • Cable harnesses & wire assemblies
  • Displays & user interfaces
  • Power supplies & thermal management components
  • Hardware & mechanical fasteners
  • Electromechanical sub-assemblies

The Qual-Pro Advantage in PCBA & Box Build

  • Single-Source Accountability
    We manage every stage in-house — from procurement to integration — ensuring streamlined communication, full traceability, and total control over schedule and quality.
  • Engineering-Driven Process
    Our engineering team collaborates closely with clients for BOM validation, design for manufacturability (DFM), process optimization, and early issue detection — reducing cost and accelerating time-to-market.
  • Precision Manufacturing Environments
    Our facilities operate under controlled conditions, supported by advanced inspection and testing, including AOI, X-ray, ICT, and functional validation to prevent defects at every stage.
  • Global Production Flexibility
    • California facility for prototyping, NPI, and domestic programs
    • Thailand facility for high-volume, cost-effective global production while maintaining quality parity across both locations.

End-to-End Supply Chain Management
We source components, manage inventory, handle logistics, and deliver finished products worldwide — all under a fully documented and auditable quality system.

Uncompromising Commitment to Quality & Compliance

Precision manufacturing is only as strong as the quality system behind it. At Qual-Pro, every PCBA and box build program is governed by industry-leading certifications, including:

  • ISO 9001:2015 – Global quality assurance
  • ISO 13485:2016 – Medical device manufacturing compliance
  • AS9100 Rev D – Aerospace and defense manufacturing standards
  • NADCAP Certified – Advanced process compliance for highly regulated sectors

Each unit produced is subjected to rigorous inspection, functionality testing, and documented verification processes to ensure defect-free delivery — regardless of production volume or application complexity.

Simplify Your Electronics Manufacturing

By consolidating PCBA assembly and box build services under one trusted partner, you eliminate the challenges of coordinating multiple vendors, avoid delays in handoffs between suppliers, and significantly reduce project risk.
From initial engineering review to final packaging and global delivery, Qual-Pro offers a fully integrated manufacturing model that simplifies your product lifecycle — while enhancing quality, consistency, and scalability.

Get a Custom Quote

Whether you require low-volume prototypes or high-volume global production, Qual-Pro’s PCBA assembly and box build solutions are engineered to support your unique technical and commercial requirements.

Locations We Service