A semiconductor device has a substrate with a plurality of conductive vias formed through the substrate and first conductive layer formed over the substrate. The access point assigns one of the sub-channels within the master channel to a requesting station according to a maximum number of user assigned to the particular sub-channel, or alternatively, the access point makes the assignment of a particular sub-channel to a particular station according the bandwidth requirement bandwidth requirement. The unrevealed balance may include a payout from a real-world wager. Further, the sensing unit performs a pull-up operation on the sense voltage according to the high-level voltage of the gate signal and performs a boost operation on the sense voltage according to the high-level voltage of the scan signal, for enhancing touch sensitivity. A gap S is formed in the radial direction between the fourth lens 54 and the second portion 56.