| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic circuit board or the like fitted to a game machine so as to enable easy and early detection of fraudulent act with respect to an integrated circuit of the electronic circuit board controlling a game. SOLUTION: The electronic circuit board 34 includes the integrated circuit 34b and a substrate 34a to which the integrated circuit 34b is mounted. The electronic circuit board 34 is fitted to the game machine so as to control the game by the game machine. A window 34g for visually recognizing the back face of the integrated circuit 34b in the mounted state is formed on the substrate 34a. COPYRIGHT: (C)2011,JPO&INPIT
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