Impedance matching method

摘要

A circuit board assembly includes a circuit board, at least one pad formed on the circuit board, and at least one connection line. Each of the at least one connection line includes a connection end connected to a respective one of the at least one pad and has the same resistance value as the respective pad.

主权项

1. An impedance matching method for impedance matching between a pad and a connection line, the method comprising:
providing a circuit board and the pad, the pad having a predetermine thickness and having a predetermine horizontal cross-section area such that the pad having a predetermined resistance value; forming the pad on the circuit board; fabricating the connection line, by controlling a length and a horizontal cross-section area of the connection line to make the connection line have the same predetermined resistance value as the pad; and connecting a connection end of the connection line to the pad.