You shoul know Gold Finger PCB definition

How to introduce gold finger PCB just few steps to your customers?
Jim will discuss gold finger PCB manufacturing in three parts below:

–You shoul know Gold Finger definition
–The use area of Gold Finger
–Introduce of Gold finger PCB

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You shoul know Gold Finger definition

Gold Finger is gold-plated terminal of a card-edge connector, usually, fingers are done by flash gold (hard gold) and the gold thickness is requested to be from 3u“ to 50u“ because fingers are mainly used for pluging for many times.
When PCBs will be repeatedly installed and removed electroplated gold is used for edge-connector contacts or as they are more commonly known: Gold fingers.

The use area of Gold Finger

Gold contact surfaces are often used on circuit boards with membrane switches which are a technology of choice for industrial, commercial and consumer products.

Introduce of Gold finger PCB

However, the gold fingers (gold-plated contact pins) found on PCBs are quite unlike Auric’s stubby, fat digits.
To begin with, the plating thickness of a PCB gold finger is typically a mere 300 micro-inch. At this thickness the hard gold is expected to survive 1,000 cycles before wear through.

Product type: 4 layers PCB
Board thickness: 1.60±0.15mm
Copper thickness: 2OZ out layer 1OZ innner Layer
Minimum hole size: 0.50mm
Surface finish: ENIG+gold finger
Minimum line width/space: 0.125/0.125mm
Gold thickness on gold finger: 20u“

Product type: 6 layers gold finger PCB
Board thickness: 1.60±0.15mm
Copper thickness: 2OZ out layer 1OZ innner Layer
Minimum hole size: 0.50mm
Surface finish: ENIG+gold finger
Minimum line width/space: 0.15/0.13mm
Gold thickness on gold finger: 30u“

If you want place our gold finger PCB,please mail to jim@htdcircuit.com