Heavy copper pcb assembly

We provide heavy copper pcb one-stop processing and manufacturing services, LST Technology is a trusted partner.

PCB de cobre pesado

Number of manufacturing layers: 1-48 camadas

Número de linhas SMT: 8 high-speed SMT mating lines

Capacidade de produção diária SMT: mais do que 50 milhões de pontos

Inspection equipment: Testador de RAIO X, testador de primeira peça, Testador óptico automático AOI, Testador de TIC, Estação de retrabalho BGA

Velocidade de montagem: Velocidade de montagem do componente CHIP (condições ideais) 0.036S/chip

Pacote mínimo: 0201, precisão de até +0,04 mm

Precisão mínima do dispositivo: PLCC, Mf, BGA, CSP e outros dispositivos podem ser colados, espaçamento entre pinos de até +0,04 mm

CITAÇÃO AGORA

Por que escolher a LST

Fabricação experiente

18 anos de fabricação de placas de circuito impresso experiência
Equipe de fabricação confiável

Prazo de entrega curto

Adoção de tecnologia avançada e equipamentos de fabricação
Sistema de produção perfeito
Retorno rápido

Bom controle de qualidade

Sistema de gestão de qualidade ISO9001/IATF16949 maduro.
Sistema perfeito de gerenciamento de pedidos ERP e MaS.

Preço acessível

Engenheiros profissionais de controle de custos
Cooperação com muitas empresas de matérias-primas.

Engenharia profissional

Inspeção DFM gratuita de arquivos PCB e BOMs.
Avaliação e consultoria de engenharia de PCB.

Ampla gama de serviços

Especializado em medicina, Automotivo, eletrônica de consumo, novo PCB de energia.
Servindo empresas globais

The introduction and advantage of Heavy copper pcb

What is heavy copper PCB

Heavy copper PCB is a high -current PCB that contains 3 ounces or more copper in the external and inner layers of the circuit board. Even if the total amount of copper is less than 3 onças, if the thickness of the copper of the PCB is greater than 4 ounces/square foot, it is also considered to be a heavy copper PCB. This large amount of copper is used as an alternative to increasing the degree of wiring.

The characteristics of heavy copper PCB

Compared with ordinary PCB boards, heavy copper PCB has the following characteristics:

1. Strong current carrying capacity: The copper foil of heavy copper PCB is large, so it can carry larger currents, which is suitable for some occasions that require high -current conduction.

2. Excellent heat dissipation performance: The heat guidance rate of heavy copper PCB is high, good heat dissipation performance, and is suitable for some electronic equipment that requires good heat dissipation effects.

3. High mechanical strength: Due to the large thickness of copper foil, the mechanical strength of heavy copper PCB is relatively high, which can provide better mechanical support performance.

4. Good corrosion resistance: A layer of corrosion coating on the surface of the copper foil is plated, which enhances its corrosion resistance and extend the service life.

Application of Heavy copper pcb

New energy equipment

Satellite communications equipment

High Power Electronics

LED lighting equipment

Heavy copper PCB manufacturing process

The manufacturing process of heavy copper PCB is similar to ordinary PCB boards, but it is different in the thickness and electroplating process of copper foil:

1. Selection of heavy copper foil: The thickness of copper foil of heavy copper PCB is usually above 70um, and it can reach hundreds of UM according to specific needs.

2. Preparatory processing process: grinding and oil removal of heavy copper foil, etc.. to ensure the flat surface and improve the adhesion.

3. Electroplating process: After the copper foil is treated with anode oxidation, the copper plating process is performed to increase the thickness of the copper foil.

4. Multi -layer pressure bumper: Multiple copper PCB plates are layed overlap, and high temperature and high voltage are used for pressing.

5. Final processing: including drilling, layer layer production, surface treatment and other steps, so that heavy copper PCB finished products meet the requirements.

Camada	1-48 camada
Material da PCB	FR-1, FR-2, FR-4, FR4 Halogen Free, CEM-1, CEM-3, High TG, Alumínio
Espessura da placa	0.2mm to 7mm
Máx. Finished Board Size	500 x 500mm (20 x 20″)
Min. Drilled Hole Size	0.25mm (10mil)
Min. Largura da linha	0.075mm(3mil)
Minimum Line Spacing	0.075mm(3mil)
Acabamento superficial / Treatment	HALS/HALS lead free, Chemical Gold, Chemical tin, Ouro de imersão
Espessura de cobre	Max.14 oz
Cor da máscara de solda	Verde / Preto / Branco / Vermelho / Azul / Amarelo
Hole Tolerance	PTH: ±0.075, NTPH: ±0.05