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Finger biometric sensor with sensor electronics distributed over thin film and monocrystalline substrates and related methods
Finger biometric sensor with sensor electronics distributed over thin film and monocrystalline substrates and related methods
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机译:具有分布在薄膜和单晶衬底上的传感器电子设备的手指生物特征传感器及相关方法
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摘要
A finger biometric sensor may include a thin film substrate, a thin film transistor (TFT) layer on the thin film substrate, and an array of electric field sensing electrodes adjacent the TFT layer for receiving a finger adjacent thereto. The TFT layer may include a plurality of TFTs defining a respective TFT amplifier stage for each electric field sensing electrode. The sensor may further include a finger excitation electrode adjacent the array of electric field sensing electrodes, and at least one integrated circuit adjacent the thin film substrate. The integrated circuit may include a monocrystalline substrate and processing circuitry adjacent the monocrystalline substrate and connected to the TFT amplifier stages.
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