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

Número de capas de fabricación: 1-48 capas

Número de líneas SMT: 8 líneas de apareamiento SMT de alta velocidad

Capacidad de producción diaria SMT: más que 50 millones de puntos

Equipo de inspección: Probador de rayos X, Probador de primera pieza, Probador óptico automático AOI, Probador de TIC, Estación de retrabajo de BGA

Velocidad de montaje: Velocidad de montaje del componente de chip (condiciones óptimas) 0.036S/chip

Paquete mínimo: 0201, precisión de hasta +0.04 mm

Precisión mínima del dispositivo: PLCC, Mf, BGA, Se pueden pegar CSP y otros dispositivos, Espacio de alfiler hasta +0.04 mm

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Por qué elegir LST

Fabricación experimentada

18 años de fabricación de PCB experiencia
Equipo de fabricación autorizado

Tiempo de entrega corto

Adopción de tecnología avanzada y equipos de fabricación
Sistema de producción perfecto
Cambio rápido

Control de buena calidad

Sistema maduro de ISO9001/IATF16949 Sistema de gestión de calidad.
Sistema perfecto de gestión de pedidos ERP y MAS.

Precio asequible

Ingenieros de control de costos profesionales
Cooperación con muchas compañías de materias primas.

Ingeniería profesional

Inspección DFM gratuita de archivos PCB y BOMS.
Evaluación y asesoramiento de la ingeniería de PCB.

Amplia gama de servicios

Especializado en médico, automotor, Electrónica de consumo, PCB de nueva energía.
Sirviendo a las empresas globales

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 ounces, 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

Nuevo equipo de energía

Equipo de comunicaciones por satélite

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.

Layer	1-48 capa
Material PCB	FR-1, FR-2, FR-4, FR4 Halogen Free, CEM-1, CEM-3, High TG, Aluminio
Espesor de la tabla	0.2mm to 7mm
Max. Finished Board Size	500 x 500mm (20 x 20″)
Min. Drilled Hole Size	0.25mm (10mil)
Min. Line Width	0.075mm(3mil)
Minimum Line Spacing	0.075mm(3mil)
Surface Finish / Treatment	HALS/HALS lead free, Chemical Gold, Chemical tin, Immersion gold
Espesor de cobre	Max.14 oz
Solder Mask Color	Verde / Negro / Blanco / Rojo / Azul / Amarillo
Hole Tolerance	PTH: ±0.075, NTPH: ±0.05

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