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Customized Golden Finger PCB Assembly Manufacturer

  • Capas: 1~40L
  • Material de base: FR-4
  • Espesor del tablero: 0,2 ~ 7,0 mm
  • Espesor de cobre: 0.5 ~ 6 oz
  • Min. Tamaño del agujero: 0,15 mm
  • Acabado de superficies: Immersion Silver
  • Certificado: UL, ISO, ROHS
  • Paquete: Paquete de cartón

Dentro de 3 ~ 7 días.

Golden Finger PCB Assembly is the gold-plated columns that you see along the connecting edges of printed circuit boards (PCBs). The purpose of gold fingers is to connect a secondary PCB to the motherboard of a computer. PCB gold fingers are also used in various other devices that communicate via digital signals, such as smartphones and smartwatches. Gold is used for the connecting points along a PCB because of the alloy’s superior conductivity.

Tipos de PCB Golden Finger

En el mercado actual, existen dos tipos principales de chapado en oro para dedos de oro. Estos son:

1. Oro de inmersión en níquel no electrolítico (ENIG): ENIG es más barato de adquirir y más cómodo de soldar que el oro duro. Sin embargo, es más suave y no puede soportar enchufar y desenchufar constantemente sin desgastarse. Recomendable para experimentación y prototipos. ENIG no es una buena opción para uso comercial.

2. Oro con recubrimiento El oro con recubrimiento duro sobre níquel es más duro y más grueso que ENIG. Es más adecuado para aplicaciones comerciales.

En aplicaciones recientes, la mayoría de los fabricantes utilizan una combinación de dos tipos de tecnología de enchapado en oro para lograr un equilibrio entre la eficiencia de los equipos electrónicos y menores costos de producción.

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Design Specifications for Golden Finger PCB Assembly

  • The inner PCB layers towards the PCB edges must be Copper-free, to prevent exposure at the time of Beveling.
  • It is not advisable to include the plated through holes (PTH) within 1 mm of Gold Fingers.
  • Maintain at least 0.5 mm of the distance between the gold fingers and the board outline.
  • Any compromise with the standard spacing values can lead to weak and malfunctioned PCB board.
  • No solder mask or screen printing should be performed near the Gold Fingers.
  • Place a gold finger on the PCB center-out.

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Quality Measures for PCB Gold Fingers

The Association Connecting Electronics Industries (IPC) has prescribed some standards for the production of PCB Gold Fingers. The IPC standards are as follows:

  • Chemical composition: To achieve maximum rigidity along the edges of PCB Gold Fingers, the gold plating should consist of between 5 to 10% Cobalt.
  • Thickness: The plating thickness should be in the range of 2 to 50 microinches. The standard thicknesses by size are 0.031 inches, 0.062 inches, 0.093 inches, and 0.125 inches.
  • Visual test: Visual inspection with a magnifying glass. The contact edges should be smooth, have a clean surface and also be free from excess plating like Nickel.
  • Tape test: Check the adhesion of gold plating and contacts. In this test, fix it with a piece of tape on the contact edge and remove it. In the next step, check the tape for plating traces. If any gold is visible on the tape, it may be that the plating is not sufficient for continuous injection and ejection.

Si podemos ayudarlo con su proyecto, llámenos al + 86-755-85246345o envíe un .

Capas 1~40Layers
Material de base FR-4, High TG FR-4, Halogen Free material, CEM-3, CEM-1, PTFE, Rogers, Arlon, Taconic, Aluminum base, Teflon, PI, etc.
Espesor del tablero 0.2~7.0mm
Espesor de cobre 0.5 ~ 6 oz
Controlled Impedance +/-5% Ω(<50Ω), +/-10% (≥50Ω), ≥50Ω +/-5% (needs review)
Tamaño mínimo del agujero 0,15 mm
Ancho de línea mínimo 0.05mm
OEM si
Min. Espaciado entre líneas 0.05mm
Acabado de superficies HASL, HASL Lead Free, Carbon Ink, Immersion Tin, Immersion Silver
Paquete Carton Package

1. ¿Está bien si quiero algunas muestras gratis?
Sí, podemos proporcionarle muestras gratuitas si tiene un pedido de producción en masa.

2. ¿Cuál es la cantidad mínima de pedido si quiero pedir PCB?
We don’t have MOQ. We accept any quantity even one piece.

3. Si quiero obtener un presupuesto de PCB de aluminio, PCB de núcleo metálico, PCB de LED, ¿qué debo hacer?
You can kindly send us the Gerber file, specifications of your requirement, we will quote immediately for you.

4. Si tengo requisitos especiales para el material de PCB, ¿cómo abordarlo?
We can make many kinds of special material PCB, for more details, please contact our sales.

5. ¿Podría ofrecer una pila de capas personalizada?
Yes, we do, in order to guarantee your PCB work well, we can offer it to you.

6. Do you supply a plastic case for our product?
We supply customized plastic or metal housing/enclosure for your PCBA products.

7. Could you do BGA assembly and X-RAY testing?
All of BGA pitch distance smaller than 0.4mm will have to go through X-RAY testing.

8. What files should I provide if order PCB or PCBA?
To make a PCB, please provide Gerber file, If you need PCBs to be assembled, you should also provide us a BOM list and Pick & place file.

9. How many days for making PCB? How long does it take for a PCBA order?
Usually 2-4 working days for PCB samples, 10-15 working days for bulk order. PCBA depends on the project, from PCB making to components purchasing till assembly work, it usually costs 2-4 weeks.

10. ¿Qué condiciones de pago están disponibles? ¿Puedo pagar a través de PayPal, T / T, Western Union?
We accept Paypal, T/T, Western Union. If you have any other questions about payment, please contact us to envíe un .

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