HXPCB provides automotive PCB assembly services

Automotive PCBs play a vital role in a variety of electronic systems, including sensor networks, engine control units, GPS, safety systems, digital displays, and LED lighting. They must meet stringent reliability, durability, and quality standards to ensure safe and efficient driving.

HXPCB is a high-quality automotive PCB manufacturing and assembly service provider. With more than a decade of expertise, we produce reliable PCBs and automotive electronics assembly services for the automotive industry. From diagnostic tools and monitoring systems to advanced automotive electronics, we provide solutions that meet the critical needs of automotive electronics.

Automotive PCB Sample Display

Automotive PCB and its importance

Automotive PCB (Printed Circuit Board) is a core component of automotive electronic systems and is widely used in sensor systems, power system control, navigation and communication, safety systems, infotainment equipment, and LED lighting.

1. New energy automotive electronics
The core components of new energy vehicles include batteries, motors, and electronic control systems, all of which require high-quality PCB support.

2. Circuit boards for intelligent systems
The rapid development of emerging technologies such as ADAS (Advanced Driver Assistance System) and autonomous driving technology has made high-end circuit boards such as high-frequency and high-speed PCBs, HDI PCBs, and FPCs the focus of the industry.

3. High-quality PCBs
Automotive PCBs need to operate stably and for a long time in extreme environments, so they must have high reliability and durability.

4. Broad market prospects
With the rapid expansion of the global new energy vehicle market, the demand for PCBs continues to grow. In addition, the increasing complexity of automotive electronic systems and technological upgrades have provided a broader market space for high-end PCBs.

HXPCB’s solutions
HXPCB is committed to providing high-quality PCB solutions for the automotive industry. We strictly follow industry standards such as IATF 16949 and ISO 9001, adopt advanced manufacturing technology and strict quality control system, and fully meet customer needs from design to production. Whether it is a high-frequency circuit board for new energy drive or an HDI PCB adapted to intelligent driving system, HXPCB can provide reliable and customized product support.

Our Automotive PCB Manufacturing Process

At HXPCB, our automotive PCB manufacturing process is designed to ensure the highest level of precision, durability, and reliability. With over 10 years of experience in the PCB industry, we understand the critical importance of automotive electronics. Below is an overview of the key stages of our process that guarantee top-quality automotive PCBs, capable of withstanding the demanding conditions of the automotive environment.

1. Design & Prototyping: Precision from the Start

The foundation of every successful automotive PCB begins with detailed design and prototyping. Our engineering team collaborates closely with clients to understand their specific requirements, ensuring that every design is optimized for performance, reliability, and manufacturability. We use advanced CAD tools and simulation software to create designs that minimize signal interference, reduce thermal issues, and enhance overall performance.

Advanced CAD Tools: State-of-the-art design tools to ensure accuracy in every layout.
Prototype Testing: We produce initial prototypes to verify designs and ensure compliance with automotive standards.
Customization: Designs are tailored to fit specific automotive applications, whether for electric vehicles, ADAS systems, or infotainment.

2. Material Selection: Quality and Durability

Selecting the right materials is key to ensuring the longevity and performance of automotive PCBs. We use high-quality, automotive-grade materials that can endure extreme temperature fluctuations, vibrations, and exposure to harsh environments. Our materials include:

High-Density Interconnect (HDI) Substrates: For compact and efficient designs in space-constrained applications.
High-Thermal Conductivity Materials: Essential for automotive applications where heat dissipation is critical.
Advanced Copper Foils and Laminates: For enhanced signal integrity and durability, especially in power control and safety systems.

3. PCB Manufacturing: Precision at Scale

Once the design and material selection are complete, the manufacturing process begins. We utilize cutting-edge equipment to produce precise multi-layer PCBs capable of meeting the complex requirements of modern automotive systems.

Laser Drilling and Precision Etching: Used to create fine lines and micro-vias necessary for high-density multi-layer boards.
Layer Stacking: We ensure that the layers are perfectly aligned and bonded to prevent any signal loss or attenuation.
Via Filling and Blind/Buried Vias: Used to create reliable connections between layers, ensuring robust performance even in the most compact designs.

4. Assembly: Quality Control at Every Stage

Our PCB assembly process is very rigorous, ensuring that each component is securely placed and soldered for optimal performance. We employ both automated and manual assembly techniques depending on the complexity of the design.

Automated Placement: Advanced pick and place machines ensure precise placement of components, reducing human errors and increasing production efficiency.
Soldering: Both wave soldering and reflow soldering methods are used to ensure a perfect bond between the PCB and its components.
Component Inspection: After assembly, each board goes through visual and automated optical inspection (AOI) to ensure there are no defects in component placement or soldering.

5. Testing: Ensuring automotive-grade reliability

At HXPCB, we take quality control very seriously. Every automotive PCB goes through a battery of tests to ensure it meets the highest standards of durability, performance, and safety:

Electrical Testing: Verifies correct functionality and signal integrity. We use flying probe testers and in-circuit testers (ICT) to check every connection.
Thermal Cycle and Vibration Testing: We simulate extreme temperature fluctuations and vibrations to ensure the PCBs operate reliably in harsh automotive environments.
Environmental Stress Testing: Tests for moisture, salt spray, and other environmental factors common in automotive applications.

6. Final Inspection and Quality Assurance: Never Compromise on Quality

Before shipment, all automotive PCBs go through final inspection to ensure compliance with automotive-grade standards. Our team follows a rigorous process to verify:

Visual Inspection: For any visible defects or discrepancies.
Electrical Performance Check: Confirms that all components operate as designed.
Compliant with Industry Standards: Ensure that each PCB meets the certifications required for automotive applications (ISO, IATF 16949).

Application of automotive PCB

1. Such as engine control unit (ECU), transmission control module (TCM) and battery management system (BMS).

2. Anti-lock braking system (ABS), electronic stability control system (ESC), airbag control module, etc. require high-precision and high-reliability PCB support.

3. Touch screen display, car audio system, navigation system and car communication module (such as Bluetooth, Wi-Fi and 5G module).

4. Modern cars generally use LED lights and digital instrument panels.

Why book with us?

Advanced multi-layer PCB manufacturing technology

We are able to produce multi-layer automotive PCBs with up to 10 layers and above, achieving micron-level accuracy in stack-up design and inner layer alignment.

High-precision PCB manufacturing experience

We have more than 10 years of rich experience in precision manufacturing.

Flexible and rigid-flex PCB technology

We have the technology to produce high-reliability flexible PCBs (FPCs) and rigid-flex PCBs

Strict environmental adaptability design

Through special coating treatment and surface protection processes (such as ENIG, OSP), the corrosion and oxidation resistance of PCBs are improved.

Strict testing and quality assurance

Use AOI (automatic optical inspection), flying probe testing and full-function electrical testing to ensure that the performance of each automotive PCB meets the standards.

Rapid prototyping and mass production capabilities

We provide fast prototyping services with the fastest delivery time of up to 48 hours.

Our Manufacturing Capabilities

Category	Capability Parameters	Description
Layers	1-64 layers	Supports up to 64-layer automotive PCBs.
Thickness	0.2-6.5 mm	PCB thickness ranges from 0.2 mm to 6.5 mm.
Min Line Width/Spacing	2.5 mil / 2.5 mil	Minimum line width and spacing of 2.5 mil.
Materials	FR-4, High-Tg materials, ceramic substrates, aluminum, flexible materials	A variety of materials to meet automotive application requirements.
Surface Finish	Lead-free HASL, ENIG, Immersion Tin, Immersion Silver, OSP	Offers various surface finishes for automotive needs.
Hole Diameter	0.15-6.5 mm	Drilling hole diameters from 0.15 mm to 6.5 mm.
Impedance Control	±5%	Impedance control tolerance within ±5%.
Thermal Resistance	Operating temperature range from -40°C to 150°C	Suitable for high-temperature automotive applications.
Soldering Processes	Lead-Free Soldering	Compliant with automotive industry standards.
Testing Capabilities	Electrical Testing, AOI, X-Ray Inspection, Functional Testing	Comprehensive testing ensures reliability and performance.
Certifications	AEC-Q, IATF 16949, RoHS, REACH	Certified for compliance with global automotive standards.

HXPCB’s Automotive PCB Assembly Services

HXPCB is committed to providing high-quality PCB assembly services for the automotive industry. It has a complete supply chain and efficient production process, providing complete solutions from prototype design to mass production, and providing flexible customization services, including prototype design, small batch trial production and mass production, to meet the different needs of customers and provide solid support for customers’ innovation and business development.
If you want to know more about automotive PCBs, please click PCB assembly or XDCPXBA.

Assembly Capability

Trustworthy assembly process

HXPCB uses advanced surface mount technology (SMT) and through-hole technology (THT) to ensure high quality of automotive PCB assembly

Automotive industry standards

Our assembly process complies with AEC-Q and IATF 16949 standards to ensure that product performance meets the strict requirements of the automotive industry.

High-precision manufacturing capabilities

Provide assembly services for miniaturized components and high-density interconnect (HDI) PCBs

Efficient heat dissipation

Use thermally conductive materials and advanced welding technology to ensure the heat dissipation performance of high-power components

Fast delivery capabilities

We have a complete supply chain and efficient production process to support rapid prototyping and on-time delivery.

Testing services

Provide a variety of tests including functional testing (FCT), automatic optical inspection (AOI) and X-ray inspection to ensure assembly quality.

FAQ

Frequently Asked Question

Automotive PCBs are widely used in EV battery management systems, in-vehicle infotainment, ADAS (Advanced Driver Assistance Systems), Engine Control Units (ECU), LED lighting systems, and sensor networks.

Common materials include FR-4, high-Tg materials, ceramic substrates, aluminum-based PCBs, and flexible substrates to meet diverse automotive requirements.

EV PCBs need to handle higher voltages, currents, and thermal loads compared to traditional automotive PCBs, and they often require specialized designs for battery management and charging systems.

Yes, many manufacturers provide rapid prototyping services to accelerate development cycles for new automotive technologies.

Automotive PCBs comply with RoHS, REACH, and other environmental regulations by using lead-free materials and ensuring responsible manufacturing practices.

Automotive PCBs must meet high reliability, high-temperature resistance, high current-carrying capability, vibration resistance, and corrosion resistance requirements, as well as pass AEC-Q certification.

The typical range is -40°C to 125°C, with some specialized PCBs capable of operating up to 150°C or higher, depending on the application.

Trends include miniaturization, high-density interconnects (HDI), increased use of rigid-flex designs, and enhanced thermal management solutions.

High reliability is ensured through advanced manufacturing processes, strict quality control, and testing standards such as thermal cycling, vibration, and humidity resistance tests.

The typical range is -40°C to 125°C, with some specialized PCBs capable of operating up to 150°C or higher, depending on the application.

Do you need any help?

HXPCB manufacturers have always been

Automotive PCB