Patent ID: 7671351

Claim:
An optical dispersion finger sensor apparatus comprising: an integrated circuit substrate comprising a semiconductor material and having an upper surface; an optical source integrated on the upper surface of said integrated circuit substrate for directing light into a user's finger when positioned adjacent said integrated circuit substrate, the light propagating into and being dispersed by the user's finger so that at least a portion of the dispersed light exits the user's finger in a direction toward said integrated circuit substrate; at least one optical dispersion sensing pixel integrated on the upper surface of said integrated circuit substrate for sensing dispersed light from the user's finger; and a processor connected to said at least one optical dispersion sensing pixel for generating optical dispersion biometric data comprising subdermal structure data based upon dispersed light from the user's finger; said processor further comprising a matcher for determining a match between the subdermal structure data of the user's finger and stored subdermal structure data for an enrolled user.