Custom PCB Assembly Service for SMT THT and Turnkey PCBA

Custom PCB Assembly Service

Custom PCB assembly services covering PCB fabrication, component sourcing, SMT assembly, THT assembly, testing and finished product packaging.

The service supports prototypes, small-batch production and mass manufacturing for different types of electronic products. Customers can choose SMT only, THT only, mixed SMT and THT, turnkey assembly or consigned component assembly according to project requirements.

PCB Types and Materials

The PCB assembly service supports several board types for different electronic applications.

Available options include FR4 rigid PCB, aluminum PCB, flexible PCB, rigid-flex PCB and ceramic PCB.

Board construction can be selected according to the electrical, mechanical, thermal and space requirements of the product.

Multilayer PCB Assembly

PCB assembly is available for boards from 1 to 20 layers.

Multilayer PCB assembly is suitable for electronic products requiring higher component density, multiple power and signal layers, or more complex circuit routing.

The PCB fabrication process can be coordinated with assembly to maintain consistency between the bare board and finished PCBA.

Gerber and BOM Verification

Before production, the engineering team checks the Gerber files, schematic, PCB layout, BOM and component coordinate files.

The review helps verify component specifications, package information, placement positions and assembly requirements before manufacturing begins.

Potential design and production issues can be identified before the boards enter assembly.

Electronic Component Sourcing

Component procurement is available for turnkey PCB assembly projects.

The service covers electronic components such as ICs, resistors, capacitors, connectors and other SMT and DIP parts.

Customers can also provide consigned components when they prefer to manage their own BOM procurement.

SMT Assembly

The SMT process includes solder paste printing, automated component placement, reflow soldering and AOI inspection.

The assembly capability supports 0201 chip components as well as fine-pitch BGA, QFN, QFP and other surface-mount packages.

THT and DIP Assembly

Through-hole components can be assembled using manual or automated DIP processes.

Wave soldering is available for suitable through-hole assemblies, followed by trimming and visual inspection.

Mixed SMT and THT assembly can be used when a PCB contains both surface-mount and through-hole components.

BGA and Fine-Pitch Assembly

The PCBA service supports BGA, QFN and QFP packages for high-density electronic assemblies.

X-Ray inspection is available for BGA and other components where solder joints are hidden beneath the package.

This helps inspect solder connections that cannot be fully checked through conventional visual inspection.

PCB Assembly Testing

Testing and inspection are performed according to the requirements of the assembled board.

Available processes include AOI, X-Ray, ICT, FCT and aging testing.

Functional testing can be customized according to the product's electrical functions and customer test specifications.

Conformal Coating and Protection

Additional protection processes are available for PCBA products used in demanding environments.

Optional services include conformal coating and potting. Anti-static packaging, product labeling and customized carton packaging can also be arranged for finished products.

Turnkey PCB Assembly

The turnkey service combines PCB fabrication, component procurement, PCB assembly, testing and packaging.

Customers can provide Gerber files, BOM information and technical requirements while the manufacturing process is managed as a complete PCBA project.

Consigned PCB Assembly

Customers who already have their own components can choose consigned component assembly.

The supplied components are used for PCB assembly according to the approved BOM and production requirements.

This option is suitable for companies that manage their own component purchasing while outsourcing PCB manufacturing and assembly.

Prototype and Small-Batch PCBA

The service supports quick-turn prototypes and small-batch trial production.

Prototype PCBA production typically takes 3–7 days, depending on PCB complexity, component availability and assembly requirements.

Small-batch production can be scaled after the prototype has been tested and approved.

Mass Production

For products moving into volume manufacturing, PCB fabrication, component sourcing, SMT, THT, inspection and testing can be coordinated through the same production process.

Production quantities and assembly methods can be adjusted according to the product design and demand.

PCB Assembly Applications

Automotive Electronics

PCB assembly for automotive electronic modules, control boards and supporting electronic systems.

Medical Equipment

Custom PCBA manufacturing for medical equipment and electronic control systems requiring consistent assembly and testing.

Industrial Control

PCB assembly for industrial controllers, automation equipment, monitoring systems and instrumentation.

New Energy

PCBA solutions for energy storage equipment, power electronics and other new energy applications.

Communication Equipment

PCB assembly for communication equipment, electronic modules and networking products.

Smart Home Devices

Custom PCBA for smart home controllers, connected devices and household electronic products.

Consumer Electronics

SMT and mixed-technology assembly for consumer electronic products and compact electronic devices.

IoT and Sensor Modules

PCB assembly for IoT gateways, sensor modules and connected electronic products.

Instrumentation

Custom PCB assembly for meters, measurement equipment and electronic instruments.

Technical Specifications

• Service Type: Custom PCB Assembly

• PCB Types: FR4 Rigid, Aluminum, Flexible, Rigid-Flex, Ceramic

• PCB Layers: 1–20 Layers

• Minimum SMT Component: 0201

• Fine-Pitch Packages: BGA, QFN, QFP, SOP

• Assembly Modes: SMT, THT, Mixed SMT+THT

• Service Options: Turnkey, Consigned Components

• Soldering: Lead-Free RoHS, Leaded Process Available

• Inspection: AOI, X-Ray

• Testing: ICT, FCT, Aging Test

• Surface Protection: Conformal Coating, Potting

• Quality Standard: IPC-A-610 Class 2 / Class 3

• Management System: ISO9001

• Automotive Grade: IATF 16949 Available

• Prototype Lead Time: 3–7 Days

• Mass Production Lead Time: 7–15 Working Days

Custom PCBA Manufacturing

The custom PCB assembly service provides a complete manufacturing route from PCB fabrication and component sourcing to SMT, THT, inspection, functional testing and finished product packaging.

With support for different PCB materials, multilayer boards, fine-pitch components and multiple assembly modes, the service can be adapted to prototype development, small-batch production and volume manufacturing.