So now that I have two phones with fingerprint scanners on them, I decided I needed to know more about what’s going on in there. Sure, I assumed the sensor was capacitive (but maybe not ...

While capacitive fingerprint scanning technology has been a staple feature in phones for years ... As a finger presses against the sensor, the ridges affect the capacitor differently than the ...

Phones have featured sensors for a while (GPS is a sensor ... help move multiple plates to cause a change in what's known as capacitance. The capacitance is converted to an electric signal ...