Printed Circuit Assembly Driving the Future of Smart Automotive

In the rapidly developing electrification and intelligence automotive industry, Automotive PCB assembly has become the core to ensure the reliable operation of car electronic systems. Whether it is the engine control unit (ECU), advanced driver assistance system (ADAS), in-vehicle entertainment information system or battery management system (BMS), high-quality and high-reliability printed circuit board manufacturing process is essential.

As an industry-leading automotive PCB OEM/ODM manufacturing service provider, SCSPCBA continues to provide high-quality automotive PCB assembly solutions for world-renowned automakers and supporting manufacturers with its one-stop service system, intelligent quotation system, strict quality management, and rich automotive project experience.

1. Quality Requirements for Automotive PCB

The working environment of automotive electronics is harsh: high temperature, high humidity, vibration, and electromagnetic interference are everywhere. Any circuit board failure may bring safety risks. Therefore, automotive printed circuit assembly must meet the following standards:

(1) High Tg FR-4 material

• Tg value: 170°C~180°C
• Application scenarios: car audio, car display, motor control board, general ECU
• Advantages: low cost, mature process, better heat resistance than ordinary FR-4
• Limitations: not suitable for long-term working environment with extremely high temperature (>180°C)

(2) Polyimide material

• Temperature resistance: 250°C for a long time, 400°C for a short time
• Application scenarios: engine compartment controller (ECU), high temperature environment BMS, brake system
• Advantages: excellent heat resistance, bending resistance, chemical corrosion resistance
• Disadvantages: high cost, difficult processing

(3) Metal substrate ( such as aluminum-based, copper-based)

• Heat resistance: above 300°C
• Application scenarios: LED headlights, electric vehicle power modules (IGBT), charging pile control boards
• Advantages: excellent thermal conductivity, fast heat dissipation, suitable for high power output
• Disadvantages: limited mechanical design, not suitable for complex circuits

(4 ) Ceramic PCB (ceramic substrate, alumina/aluminum nitride/silicon nitride)

• Heat resistance: 600~800°C
• Application scenarios: electric vehicle IGBT power modules, power converters, radar systems
• Advantages: excellent thermal conductivity, electrical insulation and high temperature resistance, high reliability
• Disadvantages: expensive, brittle, complex processing

(5 ) PTFE (polytetrafluoroethylene, Teflon substrate)

• Heat resistance: above 200°C
• Application scenarios: vehicle-mounted radar (77GHz), ADAS high-frequency communication module
• Advantages: excellent dielectric properties, low frequency loss, strong thermal stability
• Disadvantages: poor mechanical strength, high price

Multilayer board design to ensure circuit density and EMC performance

IATF16949 system certification, in line with automotive industry quality management requirements

Full process function and aging test

Complete product traceability management (MES system full connection)

2. Advantages of SCSPCBA in the Field of Automotive Printed Circuit Assembly OEM/ODM Manufacturing

(1 ) One-stop Service for the Entire Process

SCSPCBA provides full-process services from PCB design to box build, covering:

• PCB design and layout

oriented to automotive control modules, taking into full consideration EMC/EMI, thermal management, and signal integrity;

• Component procurement

using AEC-Q200/100 certified automotive-grade components to ensure stability and consistency;

• SMT and DIP assembly

advanced fully automated production lines, compatible with a variety of automotive board types and packages;

• Triple conformal coating, potting, and glue injection

moisture-proof, dust-proof, and corrosion-proof to ensure durability;

• Box build assembly

realizing integrated production from PCB to automotive electronic modules;

• ICT testing, functional testing, AOI/X-Ray testing

control at every level to ensure zero defects before delivery.

(2) OEM/ODM Flexible Customization Service

In automotive electronics manufacturing, we are committed to providing customers with comprehensive and flexible OEM (original equipment manufacturing) and ODM (on-demand design and manufacturing) services. Whether the customer has a complete circuit design solution and only needs to hand it over to the factory for mass production, or only has a product concept and needs to start from scratch for full-process development, SCSPCBA can tailor value-added solutions for them to meet the needs of different customer groups.

For OEM customers

Based on the customer’s existing design files, we provide DFM (Design for Manufacturability) optimization services to help customers improve the structural design of circuit boards, improve manufacturability and testability, and reduce the defective rate and manufacturing costs in mass production. At the same time, in response to the special requirements of automotive electronics for high power and high thermal density, SCSPCBA is equipped with a professional team to provide PCB thermal design and simulation services to ensure the thermal management performance of products in complex automotive application scenarios (such as engine compartments and high-voltage BMS systems) and ensure long-term stable and reliable operation.

For ODM customers

SCSPCBA provides one-stop development services from product project establishment, schematic design, PCB Layout, BOM selection, embedded software development, prototype production to small-batch trial production. It is particularly good at developing special PCB solutions for emerging fields such as new energy vehicle BMS (battery management system), ADAS (advanced driver assistance system), vehicle radar, and automotive LED headlights.

In addition, SCSPCBA can quickly make samples and can deliver high-quality samples in the shortest period, helping customers shorten the product launch cycle in the fierce competition in the automotive market, quickly verify product design, and respond to market changes promptly. This flexible and efficient OEM and ODM service model not only allows customers to significantly save R&D and manufacturing costs, but also speeds up the implementation of new products from concept to mass production, and enhances market competitiveness.

(3) Automotive-grade Quality Management System

SCSPCBA has an IATF16949-certified automotive electronics workshop equipped with:

• 5 SMT patch production lines
• Real-time online SPI solder paste inspection, AOI optical inspection
• BGA/QFN package dedicated X-Ray inspection station
• Full-process MES system management, 100% traceability of production and quality data
• Automatic optical inspection, Electrical performance, function, Impedance testing, aging full-process testing

（4）Rich experience in automotive electronics projects

SCSPCBA has cooperated with many global vehicle manufacturers and parts manufacturers, and has a variety of printed circuit manufacturing experience, including:

• Engine and power control unit (ECU)
• New energy vehicle battery management system (BMS)
• In-vehicle entertainment/navigation system PCB
• ADAS camera control module
• Automotive lighting, air conditioning, seat and other body control panels

3. Ideal Partner for Automotive Electronics Manufacturing