外文翻译--新型指纹识别传感器的应用分析.doc

4050字数 外文翻译 New fingerprint identification sensor applications analysis Abdtract Fingerprint recognition technology as a sophisticated identification methods have been widely used in various industries. The core components of the technology used for sensors, the paper introduced fingerprint recognition technology sensors in the application. Keywords Fingerprint identification Sensors Applications Contact type the sensor with delimits the scratching sensor is two kind of new solid states fingerprints sensor, all is through in touches in the process the electric capacity change to carry on information gathering. This article has carried on the multianalysis to two kind of sensors principles of work and the characteristic, and the introduction in the Internet safe authentication, the automobile does not have the key to enter the system and so on the application. At present in the market has two kind of solid states fingerprints sensor: The first kind is the single time of touching sensor, requests the finger to carry on reliable touching in the fingerprint gathering area; The second kind then needs to use the finger to scratch in the sensor surface, the sensor can gather set of specific data, then carries on the fast analysis and the authentication. These two kind of fingerprints sensor will obtain the more and more widespread application. The above two kind of sensors principle of work is: When in the fingerprint bulge partially puts in on the electric capacity picture element electrode, the electric capacity can have the increase, increases the electric capacity through the examination to carry on the data acquisition. In the sensor picture picture element is 45 squares microns, the gap is 50 microns, the electric capacity picture element array resolution is higher than 500dpi slightly. This kind of sensor based on one kind of standard list - polycrystalline silicon three metals CMOS craft, and uses 0.5 microns craft to carry on the design. The met