# 6oz Aluminum PCB for Electronic Control Board

_Published: 2025-08-22_

Table of Contents

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- Why Choose 6oz Aluminum PCB for Electronic Control Board?
- Applications of 6oz Aluminum PCB for EV Electronic Control Board
- 6oz Aluminum PCB for Electronic Control Board Design Specification
- 6oz Aluminum PCB for Electronic Control Board Thermal Management
- 6oz Electronic Control Aluminum PCB Manufacturing Processes
- How to Balance Cost and Quality of Electronic Control Aluminum PCB?
- Our Electronic Control Aluminum PCB Case Studies
- Why Choose EBest Circuit (Best Technology) as Aluminum PCB Manufacturer?

Why choose **[6oz aluminum PCB](https://www.bestpcbs.com/blog/2025/08/6oz-aluminum-pcb-for-electronic-control-board/)** for electronic control board? Let’s explore benefits, applications, technical spec, thermal management, production processes for 6oz aluminum PCB.

**Are you troubled with these problems?**

- Overheating causing frequent failures and high repair costs?
- Poor PCB thermal performance limiting product upgrades?
- Small-batch orders struggling with slow delivery and inventory risks?

**EBest Circuit (Best Technology) can provide services and solutions:**

- High-Efficiency Thermal Management: Significantly extending device lifespan.
- Rapid Prototyping: 48 hours rapid prototyping and flexible support for small-batch orders.
- Cost Optimization: Integrated thermal design reduces overall system costs by 25%.

**Welcome to contact us if you have any inquiry for [aluminum PCB](https://www.bestpcbs.com/products/metal-core-pcb.htm): sales@bestpcbs.com.**

## Why Choose 6oz Aluminum PCB for Electronic Control Board?

Reasons why choose [6oz aluminum PCB](https://www.bestpcbs.com/blog/2025/08/6oz-aluminum-pcb-for-electronic-control-board/)for electronic control board:

- Heat Dissipation Powerhouse: Thermal conductivity >2.0W/m·K. Reduces component temperatures by 40% vs. FR4.
- High Current Performance: 6oz copper (0.17mm) handles high power loads. Minimizes voltage drop in motor drives/power modules.
- Lightweight & Durable: Aluminum alloy (6063/5052) balances strength and weight. Withstands vibration/industrial environments.
- EMI Shielding: Reduces high-frequency noise in RF/5G circuits. Improves signal integrity with grounding design.
- Cost-Efficient Design: Eliminates heatsinks/fans. Enables compact layouts for space-constrained boards.
- Rugged Reliability: Passes extreme thermal cycling (-40°C~125°C). Surface finishes (ENIG) resist corrosion.
- Scalable Production: Consistent copper thickness for high yields. Customizable layers for diverse control board needs.

[https://www.bestpcbs.com/blog/wp-content/uploads/2025/08/main-30.jpg](https://www.bestpcbs.com/blog/wp-content/uploads/2025/08/main-30.jpg)

## Applications of 6oz Aluminum PCB for EV Electronic Control Board

- Motor Controller (MCU) Power Module‌
- On-Board Charger (OBC) DC-DC Conversion Circuit‌
- Battery Management System (BMS) Main Board‌
- Inverter Power Unit‌
- PDU (Power Distribution Unit) Busbar‌
- VCU (Vehicle Control Unit) Power Module‌
- Thermal-Sensitive Sensor Interface Board‌
- Fast Charger Power Module‌

## 6oz Aluminum PCB for Electronic Control Board Design Specification

**Parameter Category**
**Specifications/Details**

Substrate Material
6063/5052 Aluminum Alloy (High Thermal Conductivity, Corrosion-Resistant)

Copper Thickness
6oz (≈0.17mm, ±10% Tolerance)

Thermal Conductivity
≥2.0W/m·K (Aluminum Substrate Layer)

Thermal Resistance
Soldering Temperature: 260°C/10s No Delamination; Thermal Cycling: 3 Cycles (-40°C~125°C) No Cracks

Mechanical Properties
Tensile Strength ≥200MPa; Bend Radius ≥1.5×Board Thickness (Non-Plated Side)

Surface Finish
ENIG (Au Thickness 0.05~0.1μm), OSP (Antioxidant)

Insulation Layer
Epoxy/Polyimide (Thickness 50~150μm, Dielectric Strength ≥500V)

Min Trace Width/Space
0.15mm/0.15mm (Requires Electroplating Process)

## 6oz Aluminum PCB for Electronic Control Board Thermal Management

**1. Material Selection Criteria**

- Base Material: 6oz (170μm) copper-clad aluminum PCB with thermal conductivity ≥3W/m·K.
- Dielectric Layer: Thermal resistance ≤1.2°C·cm²/W, withstand voltage ≥500V.
- Surface Treatment: Anodized finish ≥5μm, surface roughness Ra0.8-1.6μm.

**2. Thermal Source Layout**

- Maintain ≥30% copper coverage in high-power zones.
- Keep ≥5mm spacing between MOSFET/IGBT components.
- Position temperature-sensitive parts (capacitors) ≥10mm from heat sources.

**3. Thermal Path Design**

- Thermal via arrays under critical components (0.5mm diameter, 1mm pitch).
- Via filling with thermal conductive paste (≥5W/m·K).
- Direct contact pressure ≥20N/cm² between PCB and housing.

**4. Cooling System Configuration**

**Passive Cooling:**

- Fin thickness ≥1.5mm, height ≥20mm.
- Thermal grease thickness 0.1-0.3mm at interface.

**Active Cooling:**

- Add axial fan when power density >5W/cm²
- Airflow ≥3CFM/W, noise