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A Comparison : Optical vs. Capacitive (Semiconductor) Fingerprint Sensors
 
Optical Sensors
Capacitive Sensors
Sensor Type Optical Capacitive
(Semiconductor or chip)
Sensor Surface No special treatments or maintenance required Usually needs surface treatments, including ESD and other protective coatings

Coatings may be uneven, wear out over time, degrade performance, and shorten product lifetime

Overall Durability Scratch-proof, unbreakable glass platen made of material as hard as quartz

Resistant to shock, ESD, and extreme weather

Corrodes easily from repeated handling and everyday exposure

Susceptible to damage by electrostatic discharge

Thin silicon chips are inherently fragile and susceptible to damage by hard external impact and scratches

Imaging Area, Resolution, and Size Large imaging area (0.5 inch x 0.6 inch)

High resolution (500 dpi)

Large image size (78,000 pixels)

Usually smaller imaging area, image size, and resolution due to greater cost of manufacturing larger, high quality chips
Cost-Effectiveness Low manufacturing cost, long life, no maintenance required Consistent quality surface coatings may be expensive to produce

Replacement, maintenance, and downtime costs can add up

Warranty One year Information not readily available

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 Access Control  Biometric Security  OEM Fingerprint Sensors  Software Development Kit
 Biometric solutions  Biometrics services  Fingerprints Readers  Fingerprints Standalone  Modules
 Biometric Product  Fingerprints products  Time Recorders  Biometrics Fingerprints Software
 Time Attendance  Fingerprints Time Attendance  Biometrics Access control  Fingerprints Access Control

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Access controllers Biometrics Resources Time Attendance Recorders Wireless Security

 

 

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