6-Layer Black Oil PCB: The Smart Choice for Automotive Wireless Charging Modules

As the automotive industry accelerates toward intelligent and electrified vehicles, in-car wireless charging is rapidly becoming a standard feature in high-end models. At the heart of this seamless charging experience lies a high-performance PCB. Kinji Cloud Board introduces its 6-layer black oil PCB (7mil IC, 4mil black oil bridge) – a precision-engineered solution designed specifically for automotive wireless charging modules, delivering reliability, efficiency, and signal integrity under demanding vehicle conditions.

1. Key Technical Specifications – Built for Automotive Grade

This 6-layer black oil PCB is tailored for harsh automotive environments. Key parameters include:

• 6-layer structure – Enables efficient integration of complex circuits, balancing signal integrity and electromagnetic compatibility (EMC) for multi-signal, high-power wireless charging modules.

• 1.6mm thickness + Shengyi TG140 substrate – Excellent heat resistance, mechanical strength, and dimensional stability to withstand thermal cycling, vibration, and shock in automotive environments.

• Fine-line capability – 7mil IC width, 4mil black oil bridge, and 0.2mm minimum hole size allow high-density routing, supporting compact, integrated module designs.
• Black oil process advantages – The high-precision black oil bridge enhances insulation protection and effectively reduces electromagnetic interference (EMI),

ensuring stable wireless charging signal transmission and preventing charging interruptions.

2. Automotive-Grade Quality – Ready for Tier 1 Mass Production

Manufactured to automotive-grade standards, this 6-layer black oil PCB is engineered for front-loading mass production.

Within a wireless charging system, the PCB handles power transmission, signal control, and thermal management. Whether under high-current fast charging or complex electromagnetic conditions, it delivers consistent, safe, and efficient wireless charging – perfectly aligned with the performance expectations of premium vehicles.

3. Four Core Advantages – Driving Innovation in Automotive Electronics

1. Automotive-grade reliability
From material selection to manufacturing processes, every step follows automotive-grade protocols. The PCB passes rigorous tests including high/low temperature cycling, humidity, and vibration, ensuring long-term stability in vehicle modules.

2. High-density integration
Fine-line routing and multilayer design maximize functionality within limited board space, enabling smaller and lighter wireless charging modules that fit seamlessly into modern vehicle interiors.

3. EMI/EMC optimization
The black oil process combined with optimized multilayer routing suppresses electromagnetic interference, improves system immunity, and meets automotive EMC/EMI standards – avoiding interference with other vehicle electronic systems.

4. Customized smart manufacturing
Leveraging Kinji Cloud Board’s full-process PCB manufacturing system, we provide flexible stack-up design, process optimization, and volume production tailored to different vehicle models and power requirements, with fast response to R&D and production needs.

4. Kinji Cloud Board – Your Trusted PCB Partner

Kinji Cloud Board has years of experience in high-end automotive, consumer electronics, and industrial control applications. We offer end-to-end PCB solutions from design and prototyping to mass production. Guided by the philosophy of “quality first, customer foremost,” we combine advanced equipment, strict quality control, and a skilled technical team to deliver high-reliability, cost-effective PCB products to global customers.

Our 6-layer black oil PCB is already in mature mass production and validated in automotive-grade applications – a solid testament to our expertise in the automotive PCB segment. Moving forward, we will continue to drive innovation in automotive electronics, empowering the intelligent evolution of new energy vehicles with advanced processes and superior products for automakers and Tier 1 suppliers.

📌 For detailed specifications, customization options, or prototyping services for our 6-layer black oil PCB, please contact us today. Let’s explore new possibilities in automotive electronics manufacturing together!