Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal – Physical deformation
Patent
1999-03-05
2000-05-09
Ngo, Ngan V.
Active solid-state devices (e.g., transistors, solid-state diode
Responsive to non-electrical signal
Physical deformation
257414, 257432, 257434, 257448, 257459, 257534, 382124, 382312, H01L 2982, H01L 310232, H01L 310203
Patent
active
060607564
ABSTRACT:
A surface shape recognition sensor of this invention includes at least a plurality of capacitance detection elements having sensor electrodes arranged in the same plane on an interlevel dielectric film formed on a semiconductor substrate to be insulated/isolated from each other, capacitance detection means for detecting the capacitances of the capacitance detection elements, and a stationary electrode disposed on the interlevel dielectric film to be insulated/isolated from the sensor electrodes. When an object to be recognized touches the upper surface of the stationary electrode, the capacitances detected by the capacitance detection elements change in accordance with the recesses/projections on the upper surface.
REFERENCES:
patent: 5757278 (1998-05-01), Itsumi
patent: 5963679 (1999-10-01), Setlak
patent: 5973623 (1999-10-01), Gupta et al.
patent: 5991467 (1999-11-01), Kamiko
patent: 6002786 (1999-12-01), Hallibert et al.
patent: 6011859 (2000-01-01), Kalnitsky et al.
FP12.3: A 390dpi Live Fingerprint Imager Based on Feedback Capacitive Sensing Scheme (P200-P201, P154-P155, P456), 1997 IEEE International Solid-State Circuits Conference.
Novel Fingerprint Scanning Arrays Using Polysilicon TFT's on Glass and Polymer Susbtrates, Electron Device Letters, vol 18, No 1, Jan. 1997.
Hirata Akihiko
Machida Katsuyuki
Morimura Hiroki
Shigematsu Satoshi
Ngo Ngan V.
Nippon Telegraph and Telephone Corporation
LandOfFree
Surface shape recognition sensor and method of fabricating the s does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surface shape recognition sensor and method of fabricating the s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface shape recognition sensor and method of fabricating the s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1067627