Let me talk about the difference between Shen and plating PCB circuit boards. Sinking gold board and gold -plated board are often used by PCB circuit boards. Many engineers cannot correctly distinguish between the two. This is a very wrong view that must be corrected in time.

    So what impact will these two "golden boards" have on the circuit board? Let me explain it for everyone to help everyone understand the concept.

    So everyone chooses gold plating, what is gold plating, what we call the whole plate gold plating, generally refers to "electroplating", "electroplating golden plate", "electrolyte", "electric gold", "electric nickel gold board". The distinction between hard gold (generally hard gold is used in golden fingers). The principle is to dissolve nickel and gold (commonly known as gold salt) in chemical water, immerse the circuit board in the electroplated cylinder and connect the current, and in the circuit board, and in the circuit board The copper foil surface generates nickel gold plating layers. Due to the high hardness of the coating, the abrasion resistance of the electro -nickel gold is not easy to oxidize in the electronic product.

What is Shen Jin? Shen Jin generates a layer of plating layer through the method of reacting the reaction of chemical oxidation. Generally, the thickness of the chemical nickel gold layer deposition method can achieve a thick gold layer.

    The difference between the golden board of the line board and the gold -plated board:

    1. Generally, the thickness of the gold is much thicker than the gold plating. The Shenjin Club is golden yellow than golden plating. It is more satisfied with Shen Jin on the surface customers. The crystal structure formed by the two is different.

    2. Because the crystal structure formed by Shen Jin and the gold plating is different, Shen Jin is more likely to welded than gold plating, which will not cause poor welding and cause customer complaints. At the same time, because of the softering gold plating, the golden fingerboard is generally selected for gold, hard gold and wear -resistant.

    3. Sinking golden board only has nickel gold on the pad, and the transmission of signals in the skin -tech effect will not affect the signal in the copper layer.

    4. Sinking gold is more dense than gold plating, and it is not easy to produce oxidation.

    5. As the wiring becomes more and more dense, the width and spacing have reached 3-4mil. Gold plating is prone to golden silk short circuit. The Shen Jin board only has nickel gold on the pad, so it will not produce gold silk short circuit.

    6, the golden board only has nickel gold on the pad, so the combination of welding resistance on the line and the copper layer is stronger. The project will not affect the spacing when compensation.