Automotive PCBs

Electric cars have consistent, indispensable, and innovative requirements. Now Tesla leads the innovation wave. But any manufacturing and design innovation on electric cars requires highly durable, reliable, and rugged PCB applications. High-performance PCB requirements significantly can withstand harsh driving conditions and can become a catalyst for innovations of growing new energy driving systems.
PCB demand for electric vehicles mainly comes from power train-related equipment—on-board chargers, battery management systems (BMS), voltage conversion systems (DC-DC, inverters, etc.), and other high-voltage and low-voltage devices. In addition, millimeter-wave radar is an important sensing device for realizing intelligent driving and even autonomous driving, and it has obvious advantages compared with other sensors.
High-power copper-plated PCBs are one of the emerging industry’s most widely used PCB applications. Flexible PCBs, HDI PCBs, and LED PCBs are major applications used on AC/DC power converters, audio and video, digital displays, braking systems, automatic dimming, electronic mirror control, automotive lighting, and Engine timing system, and remote diagnosis system. Eashub offers the below solutions for the automotive product:

Aluminum PCB also named as metal clad (MCPCB) PCB,thermally conductive PCBs insulated metal substrate (IMS or IMPCB) PCB, , etc. It generally includes a single layer, double layer, and multi-layer. Aluminum PCBs are the most common type – the base material consists of an aluminum core with standard FR4. Aluminum PCBs are the solution to high power and tight tolerance applications.

• Environmentally Friendly: Aluminum metal is non-toxic and recyclable. Manufacturing with aluminum is also conducive to conserving energy due to its ease of assembly

• Good Heat dissipation Performance: Aluminum metal has a good feature of carrying heat away from core components, thus minimizing the unfavorable effect on the circuit board.

• Higher durability: Aluminum metal is both rugged and durable; it is ideal for daily use during manufacturing, freight, and packaging.

• Lightweight: Aluminum metal is an excitingly lightweight metal. Aluminum metal increases strength and resilience without adding on any additional weight.

Check Eashub’s capability on Aluminum PCB for Automotive below table:

Thick copper PCBs are usually laminated with a layer of copper foil on the glass epoxy substrate. So far, there is no clear definition of thick copper PCB. Generally, the PCB with a copper thickness of ≥2oz on the surface of the finished PCB will be called a thick copper board.

Most circuit boards use 35um copper foil, which mainly depends on the PCB application and the voltage/current of the signal. For PCBs that require high current, the thickness may reach 70um, 105um but rarely 140um. Thick copper PCBs have the best feature on elongation and aren’t constrained by the working temperature. Even in extremely corrosive atmospheres., Thick copper PCBs form a rugged, non-toxic passivization protective layer. Thick copper PCBs own below advanced features:

•Increased capacity of current

•Higher resistance to thermal

•Good heat dissipation 

•Increases the mechanical strength of connectors and PTH holes

•Reduce product size

Thick Copper PCB for Automotive at below table:

Rigid-flex PCBs are new types of printed circuit boards that own the durability of rigid PCBs and the adaptability of flexible PCBs. Among all PCBs, rigid-flex can withstand serious harsh application environments, which is favored by the medical and industrial industry. Rigid-flex PCBs differ from the original flex board and rigid board in raw material and manufacturing processes. Rigid-flex PCBs own the advantage of both rigid FR4 PCBs and flexible PCBs. In the rigid space, where electrical and electronic components will be soldered on, the whole board can bend in the flexible PCB space. That is to make the assembly more flexible and space-saving and keep tight trace designing. The benefits of Rigid-Flex PCBs are below:

• Save space and weight by applying 3D and removing connectors

• Assure higher reliability with fewer solder joints

• Simplified assembly and test processes.

• Provide simple modular interfaces to the system environment.

• Adapt to more complexity of mechanical designs

Check Eashub’s capability on Rigid-Flex PCB for Automotive as below table:

LED PCBs have two types:  Aluminum substrate LED PCB and FR-4 glass fiber PCB. To say the difference, only compare LED aluminum substrate and FR-4 glass fiber circuit board. The LED aluminum substrate in the circuit is printed on the plane of the aluminum material with better thermal conductivity, and then the electronic components are soldered on it.

The major purpose of aluminum LED PCB is to have good heat dissipation. High-power LED will generate heat, so aluminum LED PCB is a good candidate in the LED lighting industry. FR-4 fiberglass LED PCB is a traditional and popular solution with good insulation, corrosion resistance, compression resistance, multi-layer printing, and low price, which is widely used on LED displays.

．Light In Weight

．No Dimension Limitation

．Low Power Consumption

．Strong Heat Dissipation Performance

．Dust and Moisture resistant