Mobile terminal, circuit board, circuit board design aiding...

Details Mobile terminal, circuit board, circuit board design aiding... Mobile terminal, circuit board, circuit board design aiding...

2004-10-08

2008-08-26

Smithers, Matthew B (Department: 2137)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

Tamper resistant

C716S030000, C716S030000, C716S030000, C703S013000, C326S041000

Reexamination Certificate

active

07418603

ABSTRACT:
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.

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European Search Report issued Jan. 31, 2008 in the corresponding European patent application.

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