The statement can be summarized as follows: “Non-electrolytic nickel coating on PCB boards serves multiple functions, including facilitating gold deposition, establishing strong connections, and preventing solder issues due to oxides or contaminants. Nickel’s purity is crucial for gold precipitation, with a balance of phosphorus content ensuring desired properties. Hardness matters for physical strength, especially in automotive applications. Copper is preferred for circuits, while gold’s conductivity is valuable for outer layers. Nickel’s thickness can impact high-frequency signals, and contact resistance is vital for long-term conductivity.”