Unlike fingerprint sensors that rely on optical, thermal, or DC capacitive technology, the TruePrint system uses small RF signals to detect the “live” layer of skin beneath the surface. Not only does this provide better image quality, it also allows the semiconductor-based sensors to be covered by a greater variety of protective coatings. The first AuthenTec product available in TouchStone packaging will be the AES1711 low-power sensor for the wireless market, with production quantities expected in the fourth quarter. [AuthenTec]