`
`Biometric Sensor Chips Information
`Showall Biometric Sensor Chips Manufacturers
`
`Biometric sensors are semiconductors with embedded algorithmsthat are
`used in security systems or environments that require user authentication.
`They produce electrical signals from fingerprints or other physical
`characteristics in biometric access control systems. Biometric sensors
`consist of an arrayoftiny electrodes and an analog-to-digital converter
`(ADC)thatdigitizes information from the sensorarray. In fingerprint access
`control systems, the user presses an index finger to a scanning device that
`includes a biometric sensor. The varying capacitive values across the
`sensorarray are then converted into an imageofthe fingerprint. Other
`componentsof the biometric access control system then compare the image
`to a stored template.
`
`Specifications
`Selecting biometric sensors requires an analysis of product specifications
`and features. Specifications include:
`
`resolution
`size
`image area
`operating current
`standby current
`voltage
`framerate
`operating temperature
`programmable gain
`signal-to-noise ratio
`interfaces
`integrated circuit (IC) package type
`
`
`
`Types
`Universal serial bus (USB), serial peripheral interface (SPI), and 8-bit multipoint control unit (MCU) are popularinterfaces. IC packages use
`through-hole technology (THT) or surface mount technology (SMT) and include package types such as low quad flat package (LQFP).
`
`Features
`
`In terms of features, some biometric sensors are supplied with software developmentkits. Others have a waterproof or abrasion-resistant
`
`Applications
`Applications for biometric sensors include:
`
`computer and networksecurity
`building andfacility access
`mobile device security
`govemmentandmilitary identification
`medical records
`kiosks
`point of sale (POS) terminals
`
`CARDWAREEXHIBIT 2025, Page 1 of 4
`SAMSUNG V. CARDWARE PGR2023-00013
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`CARDWARE EXHIBIT 2025, Page 2 of 4
`SAMSUNG V. CARDWARE PGR2023-00013
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`CARDWAREEXHIBIT 2025, Page 4 of 4
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