重い銅の PCB

Heavy Copper PCB Overview

The Heavy Copper PCB is a specialized type of printed circuit board designed to handle high current applications. It features an increased copper thickness compared to standard PCBs, making it ideal for power-intensive electronics. Below is a detailed introduction to this advanced PCB technology.

分類

Heavy Copper PCBs are primarily classified based on their copper thickness. Common classifications include 2OZ, 3オズ, 4オズ, up to 6OZ (or 70um and above). 今回紹介したモデルは, 重い銅の PCB, offers copper thicknesses of 2OZ and 6OZ, tailored to meet various high-power requirements.

材料構成

The Heavy Copper PCB utilizes SY S1141 as its base material, a high-quality substrate known for its electrical and mechanical properties. The PCB is constructed with 6 レイヤー, ensuring robust performance and reliability.

性能特性

Heavy Copper PCBs excel in handling high currents due to their thick copper layers. They also offer excellent thermal conductivity, which helps in dissipating heat efficiently. The surface technology used, イマージョンゴールド (1-3U), provides a protective coating that enhances corrosion resistance and improves solderability.

構造設計

構造的に, the Heavy Copper PCB features a board thickness of 2.8mm, providing a sturdy base for components. The green soldermask color not only enhances visual appeal but also provides insulation and protection against environmental factors. The white silk screen adds to the board’s readability by clearly marking component locations and other essential information.

特徴的な機能

The defining feature of Heavy Copper PCBs is their ability to carry high currents without overheating or experiencing excessive voltage drop. This is achieved through the use of thick copper layers, which also contribute to the board’s overall durability. さらに, the immersion gold surface finish ensures long-term reliability and ease of soldering.

製造工程

The production of Heavy Copper PCBs involves several precision steps:

Base Material Preparation: The SY S1141 substrate is prepared and cut to size.
銅ラミネート: Thick copper foil is laminated to the substrate using advanced bonding techniques.
回路パターニング: The desired circuit patterns are etched onto the copper foil.
層の積み重ねと積層: Multiple layers are stacked and laminated together to form the final PCB structure.
穴あけ加工とメッキ加工: Holes are drilled for component mounting and interconnection, followed by plating to enhance conductivity.
Soldermask Application: A green soldermask is applied to protect the circuits and provide insulation.
Silk Screen Printing: White silk screen ink is used to print component labels and other markings.
表面仕上げの塗布: The immersion gold coating is applied to the PCB surface.
最終検査とテスト: The PCB undergoes rigorous inspection and testing to ensure quality and performance.

アプリケーションシナリオ

Heavy Copper PCBs are widely used in power converter applications due to their ability to handle high currents and dissipate heat efficiently. They are also suitable for other high-power electronics, such as inverters, motor controllers, and battery management systems. In these applications, Heavy Copper PCBs ensure reliable performance and extended product lifespan.