Sensor for sensing fingerpaints and method for producing the sen

Details Sensor for sensing fingerpaints and method for producing the sen Sensor for sensing fingerpaints and method for producing the sen

1993-10-25

1994-12-13

Wojciechowicz, Edward

Active solid-state devices (e.g., transistors, solid-state diode

Responsive to non-electrical signal

Physical deformation

257417, 257418, 257419, 257754, 257756, 257618, 437190, 437197, 437228, 437233, 437901, H01L 2904, H01L 2144

Patent

active

053731816

ABSTRACT:
A grid-like arrangement of membranes of doped polysilicon are mounted on a substrate but are electrically insulated therefrom each membrane extends over a cavity and is joined to the substrate at at least two supporting locations so that they cavity lies between the membrane and the substrate. Changes in an electrical quantity existing between the membranes and the substrate are measured as forces exerted on the grid-like arrangement of sensor elements so that the ridges in the skin on a finger tip may be sensed for detecting a fingerprint.

REFERENCES:
patent: 3440873 (1969-04-01), Eichelberger
patent: 4203128 (1980-05-01), Guckel et al.

Affiliated with

Also associated with

Rating

Sensor for sensing fingerpaints and method for producing the sen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sensor for sensing fingerpaints and method for producing the sen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensor for sensing fingerpaints and method for producing the sen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1195004