The present invention is related to a sensor or part of a finger scanner and sorting, subject to certification or recognition relates to a finger guide device for positioning a finger of a person subject (or feature points includes a finger) on the fingerprint sensor in the optimum manner for the capture operation. Certification or recognition is generated by the fingerprint matching. There finger guide device may also be used as a template for the conversion of one or more read and future comparison matching of a fingerprint for registration of the initial fingerprint data into the system. The finger guide device may also serve other types of feedback, or tactile feedback corresponding to the temperature or temperature so as to provide the user. The finger guide device may also include a finger is wrong because of the application of the high pressure per square inch on small areas of the finger to feel somewhat uncomfortable position when the outer surface of the ridge to guide the correct placement of the finger more comfortable. The finger guide device may have a curved inside surface to conform to a wide variety of fingertip shapes and sizes, and the front side has a shorter radius of curvature than the rear portion of the finger guide device. The front of the finger guide device may have a sufficiently steep his side and a short radius of curvature so as to act as a stop to position the tip of the finger to approximately 0.51 to 2.29 (0.20 to 0.90 inches) in the center front of the sensor. This is an ideal location for registering a target user and authentication or after recognition. The finger guide device material or surface may be an electrically conductive, whereby a capacitive or other type of electronic device or finger tissue to facilitate the improved use of the fingerprint sensor is an electromagnetic actuated requiring such potential sensing means may serve as a means for delivering a drive signal. Can be added in the double positioning bump or movem
