Circuit board company|Inverter PCB factory|Multilayer PCB price-Shenzhen Weienchen Technology Co., Ltd.

Tel: +86-755-29662580

Email: sales@victoriapcb.com

current position: Home  》  News  》  Industry News

PCB circuit board gold finger recognition method

source:Industry News release time:2021-09-13 Article author:sznbone Popular:pcb

  The so-called circuit board gold finger refers to a row of equidistantly arranged square pads, exposed copper and gold-plated. It is mostly used for electrical connection pins for board cards, LCD connections, motherboards, chassis, etc., because the copper foil nickel-plated layer is plated with a thin layer of gold.

PCB circuit board gold finger recognition method(图1)

  One, the definition and function of the gold finger of the PCB circuit board:

  Golden Finger: (GoldFinger or EdgeConnector) Insert one end of the PCB circuit board into the connector card slot, and use the connector pin as the outlet of the circuit board to connect to the outside, so that the pad or copper skin is in contact with the pin at the corresponding position. To achieve the purpose of conduction, and plate this pad or copper on the PCB board with nickel and gold, because it is in the shape of a finger, it is called a gold finger. The reason why gold is selected is because of its superior conductivity and oxidation resistance. .But because of the extremely high cost of gold, it is only used for partial gilding such as gold fingers.

  Double-sided circuit board gold finger plus plating hole filling

  Two, circuit board gold finger classification and identification characteristics

  The gold finger classification of the circuit board:

  1. Conventional gold finger (flush finger);

  2. Segmented cheats (intermittent cheats);

  3. Long and short golden fingers (ie uneven golden fingers).

  Gold finger circuit boards of different lengths

  1. Conventional gold fingers (flush fingers): rectangular pads with the same length and width are arranged neatly at the edge of the board. The picture below shows: network cards, graphics cards and other types of physical objects, with more gold fingers. Some small boards have fewer gold fingers ;

  2. Segmented golden fingers (intermittent golden fingers): rectangular pads with different lengths located on the edge of the board, and the front section is disconnected;

  3. Long and short golden fingers (ie uneven golden fingers): rectangular pads with different lengths located on the edge of the board.

  PCB circuit board gold finger

  Features: No character frame and marking, conventional solder mask opening window. Most shapes have grooves. The gold fingers protrude from the edge of the board, or are close to the edge of the board. Some boards have gold fingers at both ends. Normal gold fingers are on both sides Yes, some PCB circuit boards have only single-sided gold fingers. Some circuit boards have a wide single gold finger.


Read recommendations:

Six-layer Immersion Gold Board (BGA)

Six-layer Immersion Gold Board (BGA)

Mobile phone board

DIP plugin

Talking about the advantages and disadvantages of soft and hard board FPCB

Previous:Talking about the technological production process of the circuit board Back to list Next:The circuit board is always by our side

Online message

Popular recommended products

Related Information

PCB hard material materials: BT, ABF, MIS

2021-12-03

What are the main materials for PCB flexible circuit board packaging substrates,AOI circuit board co

2021-12-02

The easiest way to install pogopin thimble,Amplifier PCB price

2021-11-30

Double-sided multilayer pcb circuit board jigsaw rules and skills,Video home phone PCB Vendor

2021-11-29

What are the disadvantages of OSP anti-oxidation circuit board technology,X-ray inspection PCB price

2021-11-29

Causes of PCB circuit board welding defects,X-ray inspection PCB company

2021-11-29

Causes of poor tin on circuit boards and preventive measures,Transformer T PCB sales

2021-11-26

The advantages of thick copper plate and the application field of circuit board,Transformer T PCB Wh

2021-11-26

Analysis of common failures of multilayer circuit boards,Transformer T PCB Processing

2021-11-26

Thick copper circuit board manufacturing process,AOI circuit board factory

2021-11-26

Circuit board cleaning and maintenance methods,AOI circuit board Merchant

2021-11-26

Is it really important to clean the circuit board (circuit board) PCBA?

2021-11-26

In which case the circuit board will be deformed,AOI circuit board Production

2021-11-26

How to ensure the normal operation of the circuit board at high temperatures,Analyzer PCB Wholesale

2021-11-26

Teach you the circuit board manufacturer to write the 8D report required by the customer,Analyzer PC

2021-11-26

Visual inspection of Beijing circuit board production line,AOI circuit board price

2021-11-26

What is the relationship between PCB multi-layer circuit boards and 5G,Analyzer PCB sales

2021-11-26

Beijing Circuit Board Factory: Multilayer Circuit Board,AOI circuit board Wholesale

2021-11-26

How to prevent the warpage of the circuit board,Amplifier PCB factory

2021-11-26

Analysis of common failures of circuit boards.,Amplifier PCB Merchant

2021-11-26

Take you to understand the electronic product multilayer circuit board,Analyzer PCB factory

2021-11-26

The reason and improvement method of open circuit on the circuit board,Analyzer PCB price

2021-11-26

Talking about the knowledge of PCB circuit board impedance,Analyzer PCB Processing

2021-11-26

What problems should be paid attention to in circuit board proofing,Amplifier PCB company

2021-11-26

Circuit board factory customer complaint handling process and matters needing attention.,Amplifier P

2021-11-26

The development trend of raw materials in the PCB circuit board industry,Amplifier PCB Collection

2021-11-26

Principle of inner layer processing of multi-layer automotive PCB soft and hard board

2021-11-24

Characteristics of halogen-free PCB board.Amplifier PCB Collection

2021-11-22

What to get rid of the halogen-free circuit board basis?Electrolytic capacitor PCB company

2021-11-20

The impact of pcb copper clad laminates on the upstream industry!Oscillator PCB factory

2021-11-19