PCB Assembly Capabilities

Precision Assembly. Flexible Manufacturing. Built Around Your Project.

PCB Assembly Express is a full-service electronics contract manufacturer offering high-quality PCB assembly, from quick-turn prototypes to full production.

With advanced equipment, certified technicians, integrated component sourcing, and a network of domestic and offshore PCB fabrication partners, we provide everything you need to bring your designs to life.

Get an Instant Quote
Precision circuit board assembly

PCB Assembly for Every Stage of Product Development

From your first prototype to repeat production runs, our dedicated assembly operations are designed to support different project requirements, quantities, and timelines.

Quick-Turn Prototype Assembly

Quick-Turn Prototype Assembly

Validate your design, test functionality and identify improvements.

Low Volume PCB Production

Low Volume PCB Production

Pilot production, product launches, specialized electronics.

Production PCB Assembly

Production PCB Assembly

Scale to Full Production.

Surface-Mount Technology (SMT) Assembly

Our advanced SMT assembly equipment delivers precise, reliable component placement for complex, high-density circuit boards. From miniature passive components to fine-pitch ICs and high-pin-count BGAs, we support a wide range of component packages for both prototype and production assemblies.

  • Miniature Components: Passive components as small as 0201
  • Fine-Pitch Components: Component pitches down to 0.4 mm
  • BGA Assembly: BGA packages with pitches down to 0.4 mm and up to 1,932 solder balls.
  • Advanced Component Packages: QFP, QFN, SOIC, SOT, and other supported SMT packages.
  • Double-Sided Assembly: Single-sided and double-sided SMT component placement.

Through-Hole (THT) Assembly

Our through-hole assembly services provide strong, reliable connections for components requiring enhanced mechanical strength, durability, or specialized electrical connections. We support a wide range of through-hole components for both prototype and production assemblies.

  • Connectors and Terminals: Reliable assembly of connectors, terminal blocks, and other interconnect components.
  • Leaded Components: Assembly of resistors, capacitors, diodes, and other traditional through-hole devices.
  • Mechanical Strength: Secure component mounting for applications requiring durability and resistance to mechanical stress.
  • Flexible Production: Support for prototypes, small batches, and production runs.

Mixed-Technology Assembly

Integration of through-hole and surface-mount components on the same PCB.

Have a design with unusual components
or special assembly requirements?

Contact our team to review your project.

Contact Us

PCB Specifications

Our assembly capabilities support a range of PCB types and manufacturing specifications.

Supported PCB Types

  • Rigid PCBs
  • Flexible PCBs
  • Rigid-flex PCBs

Soldering Options

  • Leaded solder
  • Lead-free, RoHS-compliant assembly

PCB Specifications

Board Dimensions
  • Minimum Size: 0.75 x 0.75 inches
  • Maximum Size: 18 x 20 inches

Smaller boards may require panelization or specialized fixtures, depending on board size and assembly requirements.

Board Thickness
  • Minimum Thickness: 0.010 inches
  • Maximum Thickness: 0.250 inches
Common Finishes

Hot Air Solder Leveling ( HASL)

Lead-free HASL

Electroless Nickel Immersion Gold (ENIG)

Immersion Silver

Immersion Tin

Component Packaging

  • Cut Tape (6 inches or longer)
  • Partial Reel / Full Reel
  • Tubes (preferred a whole tube)
  • Trays

Components Specifications

Component Sizes
  • SMT Size: 0201 or lager
  • Fine Pitch: 16 mil (.4 mm) or greater
  • BGA Pitch: 16 mil (.4 mm) or greater
  • BGA Ball Count: Up to 1932

Quality Inspection & PCB Testing

Our inspection procedures help identify assembly defects and verify workmanship before your boards move to the next stage.

Quality Inspection & PCB Testing

Visual Inspection

Visual inspection following SMT and through-hole assembly to identify soldering defects and ensure assembly quality in accordance with IPC-A-610 Class 2 and Class 3 standards.

Automated Optical Inspection (AOI)

Automated inspection to help detect component placement, orientation, and soldering defects.

X-Ray Inspection

X-ray inspection of leadless components to examine solder connections that cannot be fully assessed visually.

Electrical Testing

In-circuit testing (ICT) and functional testing are available according to project requirements.

Component Sourcing & Supply Options

You choose how your components are supplied.

Every project has unique sourcing requirements. We offer flexible procurement options that give you greater control over component selection, availability, and cost.

Turnkey Assembly

We manage the entire manufacturing process, from sourcing components, bare PCBs, wires, and connectors to PCB and wire harness assembly, providing a complete manufacturing solution.

Best for:

Customers looking to streamline procurement, reduce supplier coordination, and simplify the manufacturing process.

Consigned Assembly

You provide the PCBs, electronic components, and other materials required for your project, while we manage the complete assembly process.

Best for:

Customers who already have inventory or need direct control over component selection.

Partially Consigned Assembly

You supply selected components, and we manage the sourcing and procurement of additional materials required for your assembly.

Best for:

Customers who want to maintain control over critical components, utilize existing inventory, and simplify procurement through our sourcing services.

Why Choose PCB Assembly Express?

At PCB Assembly Express, we combine advanced manufacturing technology, fast turnaround times, and personalized service to deliver high-quality PCB assemblies, from prototypes to production.

Assembly equipment in operation

Fast Turnaround & Flexible Production

Quick-turn PCB assembly in as little as 24–48 hours for qualifying projects, with flexible quantities ranging from single prototypes to recurring production runs.

Advanced Manufacturing & Quality

Modern SMT equipment supporting complex assemblies, fine-pitch components, BGAs, and QFNs, backed by comprehensive inspection and testing capabilities.

Complete Manufacturing & Component Sourcing

PCB fabrication, component sourcing, PCB assembly, and wire harness assembly, with flexible turnkey, consigned, and partially consigned options.

Online Quoting & Ordering

Experienced technical support, responsive communication, and dedicated customer service throughout the manufacturing process.

From Requesting a Quote to Receiving Your Assembled PCBs

At PCB Assembly Express, we make the PCB assembly process simple and convenient.
From your initial quote to final delivery, our team helps ensure a smooth manufacturing experience.

1

Get an Online Quote or Request a Custom Quote

Upload your BOM, Gerber files, and pick-and-place data to receive an online quote. Select your quantities, lead time, and component sourcing options. For projects with special requirements, email us your files and specifications for a custom quote.

2

Place Your Order

Review your quote and place your order online or simply email us your purchase order. Our team will confirm your project requirements and coordinate PCB fabrication, component sourcing, and assembly preparation.

3

PCB Assembly & Inspection

Our team of experienced technician assembles your boards using advanced SMT and through-hole technologies, followed by inspection and testing as required by your project.

4

Shipping & Delivery

Once your assemblies are completed and approved for shipment, we carefully package and ship your boards to your specified destination.

Start Your PCB Assembly Quote

Frequently Asked Questions

PCB Assembly Capabilities

Typically, we need Gerber files, a BOM, pick-and-place or centroid data, and assembly drawings. Additional documentation may be required depending on your project.

Yes. We offer turnkey sourcing, customer-supplied components, and partially consigned assembly options.

Yes. Our current capabilities include BGA packages with a minimum pitch of 0.4 mm and fine-pitch components with a minimum pitch of 0.4 mm.

We offer visual inspection, automated optical inspection (AOI), and X-ray inspection to evaluate hidden solder joints in BGA, QFN, and other leadless components. In-circuit testing (ICT) and functional testing are also available based on your project's requirements.

Yes. We offer PCB assembly services for everything from single prototypes to full production runs, with flexible order quantities and turnaround options to meet your project requirements.

Yes. Submit a custom quote request with your design files and requirements so our team can evaluate your project.