Mobile terminal, circuit board, circuit board design aiding apparatus and method, design aiding program, and storage medium having stored therein design aiding program

摘要

The present invention provides a tamper resistant circuit board, an apparatus and method for aiding the design of the circuit board, a computer readable storage medium having stored therein a program for performing the method, and a mobile terminal containing the circuit board. The tamper resistant circuit board has a multilayer structure, including outermost substrates and an internal layer between the outermost substrates, and a signal line through which a confidential signal flows. The signal line is wired such as the confidential signal does not appear on the outer surfaces of the outermost substrates of the multilayer structure of the circuit board.