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UWB base station ranging system

Millimeter wave radar module

Industrial 1000Mbps Switch Module

Industrial grade 100Mbps module

Image Transmission Module

Industrial Motherboard

Audio amplifier module

Power module（DC-DC/AC-DC/High Voltage Power Module）

learning development boards

Power temperature measurement module

Fast PCB prototyping

Double-Sided PCB

High-Density Interconnect (HDI) PCB

High-Frequency/High-Speed PCB

Metal Core PCB (MCPCB)

Turnkey PCB assembly Prototype Services

Industrial Control PCB assembly

Communication Equipment PCB assembly

Consumer Electronics PCB assembly

IoT & Smart Home PCB assembly

Automotive Electronics PCB assembly

Medical Devices PCB assembly

Energy & Power PCB assembly

AI Terminals PCB assembly

Aerospace PCB assembly

Computers & Data Centers PCB assembly

Marine Electronics PCB Assembly

Military & Defense PCB assembly

Smart Meters ICs

UAV Acoustic Localization System

ICs & Gyroscopes for Drones/UAV/FPV

Multi-layer board(High-Layer Count PCBs)

HDI board(High-Density Interconnect PCBs)

Rigid-Flex PCBs(FPC board)

High-Frequency &High-Speed PCBs

Metal Core PCBs (MCPCBs)

High-Density SMT Assembly

PCB Design & Layout

Reverse Engineering

PCB & PCBA Solutions

OEM & ODM Solutions

High Speed & High Frequency Solutions

Motor PCB & Axial Flux Motor PCB Solutions

Electronic Manufacturing Box Build & Product Assembly

Rapid PCB Prototyping & Assembly Services

Turnkey PCB Assembly Services

Quick Turn PCB Fabrication and Assembly Services

Rigid-flex pcb assembly manufacturer

low volume turnkey PCB assembly China manufacturer

Medical device PCB assembly services

PCB Manufacturing and Assembly Services

High-mix PCB Contract Manufacturing

HDI PCB fabrication and assembly

High-Reliability PCB/PCBA Manufacturer for Defense & Aerospace

Wafer Test & Packaging Probe Card Specialist

Quality service

Human resources

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Home > About Us-FR4PCB.TECH

High-Mix PCB Assembly Services

High-Mix PCB Assembly Services: Custom SMT/DIP/BGA Assembly from EMS Provider for Diverse Scenarios

As a flexibly responsive electronic contract manufacturer, we accept orders from small-batch prototyping to mass production, balancing cost optimization and technical adaptation to meet assembly needs of various industry products

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ISO-Certified EMS Manufacturer

ISO-Certified EMS Manufacturer: Professional PCB Assembly Including SMT/DIP/BGA, Full Quality Traceability

Deeply rooted in electronic contract manufacturing, we ensure consistency and reliability of each batch with strict quality inspection systems and mature processes, providing stable OEM support for high-demand industries

EMS Contract Manufacturer

Following Electronic Packaging Trends: High-Precision BGA/SMT Assembly, Technological Breakthroughs of EMS Contract Manufacturer

Focusing on high-density and miniaturization demands, we master BGA ball grid array and SMT/DIP hybrid technologies, offering eco-friendly PCB assembly services to support innovation in 5G, IoT and other emerging fields

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electronic contract manufacturing

Full-Cycle PCB Assembly Solutions: Direct SMT+DIP+BGA Services from EMS Provider, First Choice for Cost & Efficiency

Integrating core electronic contract manufacturing capabilities, we control the entire process from prototyping to mass production, balancing miniaturization needs and production stability with automated lines and supply chain advantages

One-Stop EMS Manufacturing

One-Stop EMS Manufacturing: High-Precision PCB Assembly with SMT/DIP/BGA, Empowering High-Integration Product R&D

As an experienced electronic contract manufacturer, we rely on advanced packaging technology and IPC-compliant processes to deliver high-density, reliable assemblies, serving medical, automotive, telecom industries and accelerating time-to-market

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Core Process of PCB Assembly Services

Professional PCB assembly services cover the whole process of high-precision SMT, through-hole soldering and functional testing. Selected high-quality components, strict SMT process control, meeting custom needs of medical, industrial control, consumer electronics more. Stable delivery, rigorous quality control, one-stop solution from prototyping to mass production. Choose us, build a reliable hardware foundation for your electronic projects!

PCB Assembly Services

Pre-preparation

BOM (Bill of Materials) List Review, Gerber File Matching, PCB Substrate Quality Inspection (Appearance/Conductivity)

PCB Assembly Services

Core Processes

Solder Paste Printing → Component Placement (SMT/DIP) → Reflow Soldering/Wave Soldering → Manual Touch-up Soldering (for irregular-shaped components/rework) → Cleaning (to remove flux residues)

PCB Assembly Services

Post-processing

Functional Testing → Appearance Inspection → Packaging and Protection (anti-static/moisture-proof)

SMT PCB Assembly

High-Precision SMT PCB Assembly: Placement, Soldering & Quality Control

Witness solder paste printing, component placement, reflow soldering & smart inspection; see how electronics are made

Classification of Key PCB Assembly Processes and Their Suitable Scenarios

Three core PCB assembly processes precisely meet diverse needs: SMT enables high-density mounting, empowering miniaturization of consumer electronics and medical devices; DIP enhances mechanical stability, suitable for industrial control and security equipment requiring durability; BGA optimizes heat dissipation and signal transmission, supporting high-end communications and high-performance computing products. Full-scenario process coverage creates reliable electronic cores.

Surface Mount Technology (SMT)

Core Characteristics: Miniaturization of components, high-precision placement, and high batch production efficiency. Suitable Components: Ultra-small packages such as 01005, high-density devices like QFP/BGA/CSP. Typical Applications: Consumer electronics (mobile phones/tablets), communication equipment.

Through-Hole Technology (DIP):

Core Characteristics: Strong mechanical stability and excellent heat dissipation performance. Suitable Components: Plug-in resistors/capacitors, connectors, power devices. Typical Applications: Industrial control boards, automotive electronics (high-power modules).

Hybrid Assembly Process:

Combining SMT and DIP, suitable for complex functional boards (e.g., medical equipment, server motherboards).

Key Aspects of Material Management and Selection in PCB Assembly

Core Materials:

Solder Paste (selection between lead-free and leaded types, matching melting points)FluxComponents (verification of original vs. substitute parts)

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Material Control:

Component Storage :Electrostatic discharge (ESD) protectionTemperature and humidity control (≤60% RH) Part Number Traceability :Batch managementBarcode binding to ensure full traceability

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Quality Control System for the Entire PCB Assembly Process

In-Process Inspection

In-Process Inspection :Online Inspection :AOI (Automated Optical Inspection) for placement deviation and solder joint voidingSPI (Solder Paste Inspection) for printing thickness and area Offline Inspection :X-Ray inspection for BGA bottom solder jointsICT (In-Circuit Test) for continuity and short-circuit verification
Final Inspection Criteria

Final Inspection Criteria :Electrical Performance :Functional integrityVoltage withstand and insulation testingAging tests Appearance Standards :Compliance with IPC-A-610 specifications (solder joint fullness, component misalignment ≤0.3mm)
Exception Handling

Exception Handling : Rework Process (hot air desoldering, component replacement)Defect analysis and traceability

Core Technical Indicators and Capability Boundaries of PCB Assembly

PCBA Defect Killers: How 10 Core Tests Block 99% of Defective Products?

PCBA Testing On-Site: How 10 Core Items Ensure Product Reliability?

About Us-FR4PCB.TECH

About Us - FR4PCB.TECH: Your Trusted PCB Manufacturing & Assembly Partner

FR4PCB.TECH is a leading provider of advanced PCB (Printed Circuit Board) manufacturing and assembly services, specializing in OEM (Original Equipment Manufacturer) and ODM (Original Design Manufacturer) solutions. With years of expertise in the electronics industry, we deliver high-quality, reliable PCB products tailored to meet the diverse needs of our global clients.

Our state-of-the-art manufacturing facilities are equipped with cutting-edge technology, enabling us to produce PCBs in various materials, including FR4 (the industry standard for rigid PCBs), as well as high-frequency, flexible, and rigid-flex PCBs. We cater to a wide range of industries, including telecommunications, automotive electronics, medical devices, aerospace, consumer electronics, industrial control systems, IoT (Internet of Things) devices, and more. Whether you need a prototype for a new product or mass production for a well-established line, FR4PCB.TECH has the capabilities and experience to deliver.

As an OEM/ODM solutions provider, we offer end-to-end services, from concept design and DFM (Design for Manufacturability) analysis to PCB fabrication, component sourcing, SMT (Surface-Mount Technology) assembly, through-hole assembly, testing, and final logistics. Our team of engineers and technicians works closely with clients to optimize BOMs (Bills of Materials), reduce costs, and ensure seamless integration of PCBs into their products.

At FR4PCB.TECH, we prioritize quality, reliability, and customer satisfaction. We adhere to strict quality control standards, including ISO certifications, and continuously invest in R&D to stay at the forefront of PCB technology. By choosing FR4PCB.TECH, you partner with a company dedicated to accelerating your time-to-market, enhancing product performance, and driving your business success. Contact us today to discuss your PCB manufacturing and assembly needs!