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时间: 2020-1-16 12:27
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090425MBF200SolidStateFingerprintSensorOverviewTheFujitsuMBF200isa500DPI8-bitgrayscalesolid-statecapacitivengerprintsensorthatreliablycapturesngerprintimages.The2-dimensionalarrayconsistsof256x300pixelsmanufacturedinstandardCMOS.Thesensingareais12.8mmx15.0mm(0.5"x0.6").Eachpixelismadeupofametalelectrode,whichactsasoneplateofacapacitor.Thecontactingngeractsasthesecondcapacitorplate.Apassivationlayeronthedevicesurfaceformsthedielectricbetweenthesetwoplatesandprovidesabrasionandchemicalresistance.Thengerprintimageisdeterminedbymeasuringthecapacitanceateachpixelandconvertingthatdataintoan8-bitgrayscaleimage.Packages24.0mm12.8mm1.4mm15.0mm24.0mmRoHSCompliantFeaturesRugg……