Printed circuit board trace for galvanic effect reduction

A method for reducing etching due to galvanic effect in a printed circuit board, the method comprising:

• determining a ratio of a surface area of a contact finger to a surface area of an exposed portion of a contact trace electrically connected to the contact finger, wherein the contact finger is configured to provide an electrical connection to an external electronic device;
• determining whether the ratio exceeds a predetermined threshold;
• responsive to determining that the ratio exceeds the predetermined threshold, separating the exposed portion of the contact trace into a contact trace portion and an impedance trace, wherein the contact trace portion and the impedance trace are electrically isolated;
• plating the contact finger and the contact trace portion with a common material;
• and
• electrically connecting the contact trace portion and the impedance trace with one of a component or a bond wire.

A card-type data storage device, comprising:

• a substrate having a first side and a second side opposite to the first side;
• a contact finger disposed on the first side of the substrate configured to interface with a host device and plated with a plating material;
• a first trace coupled to the first contact finger and extending from the first side of the substrate to the second side of the substrate, wherein the first trace has an exposed portion disposed on the second side of the substrate, the exposed portion being plated with the plating material;
• and
• a second trace disposed on the second side of the substrate, wherein a portion of the second trace is plated with the plating material;
• and
• wherein the exposed portion of the first contact trace is electrically connected to the second trace through a connection device, the connection device connected between the plated portion of the first trace and the plated portion of the second trace.