NFC Times Exclusive: In what is believed to be one of the first uses for NFC booster technology in NFC phones, the new iPhone 6 and iPhone 6 Plus feature an amplifier chip enabling a unique antenna design by Apple for its Apple Pay service that launched Monday.
The booster chip, from Austria-based ams AG, uses what is known as active load modulation, a technology that is not yet standardized, though has been used in microSDs and SIM cards with certification from payment networks. Such other vendors as NXP Semiconductors, supplier of the actual NFC controller and secure element for the iPhones, also have booster technology.
The ams chip, the AS3923, enables what is believed to be a small and uniquely shaped antenna that was designed by Apple to work with the metal cases of its new iPhones and also the tight spaces in the forthcoming Apple Watch. It enables users to tap the top tip of the iPhones to POS terminals while holding the phone at the bottom as they scan their thumbprints on the handsets’ Touch ID sensor.