Cov nyhuv ntawm lub zog siab silicon carbide diode rauTus ntsuas duab PIN
Lub zog siab silicon carbide PIN diode yeej ib txwm yog ib qho ntawm cov kub tshaj plaws hauv kev tshawb fawb txog cov khoom siv fais fab. PIN diode yog lub diode siv lead ua los ntawm kev sib xyaw ib txheej ntawm intrinsic semiconductor (lossis semiconductor uas muaj cov khoom tsis huv tsawg) ntawm thaj tsam P + thiab thaj tsam n +. Lub i hauv PIN yog lus Askiv luv rau lub ntsiab lus ntawm "intrinsic", vim tias nws tsis yooj yim sua kom muaj semiconductor ntshiab yam tsis muaj cov khoom tsis huv, yog li txheej I ntawm PIN diode hauv daim ntawv thov yog sib xyaw nrog me me ntawm P-hom lossis N-hom khoom tsis huv. Tam sim no, silicon carbide PIN diode feem ntau siv Mesa qauv thiab qauv dav hlau.
Thaum lub zaus ua haujlwm ntawm PIN diode tshaj 100MHz, vim yog qhov cuam tshuam ntawm ob peb tus neeg nqa khoom thiab lub sijhawm thauj mus los hauv txheej I, lub diode poob qhov cuam tshuam rectification thiab dhau los ua ib qho impedance element, thiab nws tus nqi impedance hloov pauv nrog lub zog bias. Ntawm xoom bias lossis DC rov qab bias, qhov impedance hauv I cheeb tsam yog siab heev. Hauv DC pem hauv ntej bias, I cheeb tsam nthuav qhia lub xeev impedance qis vim yog carrier txhaj tshuaj. Yog li ntawd, PIN diode tuaj yeem siv ua ib qho impedance hloov pauv, hauv thaj chaw ntawm microwave thiab RF tswj, nws feem ntau tsim nyog siv cov khoom siv hloov pauv kom ua tiav kev hloov pauv teeb liab, tshwj xeeb tshaj yog hauv qee qhov chaw tswj teeb liab siab, PIN diodes muaj peev xwm tswj teeb liab RF zoo dua, tab sis kuj siv dav hauv kev hloov pauv theem, kev hloov kho, kev txwv thiab lwm yam circuits.
Lub diode silicon carbide muaj zog heev siv dav hauv kev siv hluav taws xob vim nws cov yam ntxwv tsis kam hluav taws xob zoo, feem ntau yog siv ua lub raj xa hluav taws xob siab.PIN diodemuaj lub zog hluav taws xob rov qab tseem ceeb VB, vim yog cov txheej doping i qis hauv nruab nrab uas nqa lub zog hluav taws xob tseem ceeb poob. Kev nce qhov tuab ntawm thaj tsam I thiab txo qhov doping concentration ntawm thaj tsam I tuaj yeem txhim kho lub zog hluav taws xob rov qab ntawm PIN diode, tab sis qhov muaj thaj tsam I yuav txhim kho qhov poob hluav taws xob pem hauv ntej VF ntawm tag nrho cov cuab yeej thiab lub sijhawm hloov ntawm lub cuab yeej mus rau qee qhov, thiab lub diode ua los ntawm cov khoom siv silicon carbide tuaj yeem ua rau cov qhov tsis zoo no. Silicon carbide 10 npaug ntawm lub zog hluav taws xob tawg tseem ceeb ntawm silicon, yog li ntawd lub thickness ntawm silicon carbide diode I cheeb tsam tuaj yeem txo qis rau ib feem kaum ntawm lub raj silicon, thaum tswj lub zog hluav taws xob tawg siab, ua ke nrog cov khoom siv thermal conductivity zoo ntawm silicon carbide, yuav tsis muaj teeb meem pom tseeb txog kev kub hnyiab, yog li lub zog siab silicon carbide diode tau dhau los ua lub cuab yeej rectifier tseem ceeb heev hauv thaj chaw ntawm cov khoom siv hluav taws xob niaj hnub.
Vim nws muaj qhov me me ntawm qhov to rov qab thiab muaj peev xwm txav mus los tau zoo, cov silicon carbide diodes muaj kev nyiam heev hauv kev tshawb nrhiav photoelectric. Qhov to me me ntawm qhov to tuaj yeem txo qhov tsaus ntuj ntawm lub tshuab ntes thiab txo suab nrov; qhov muaj peev xwm txav mus los tau zoo tuaj yeem txhim kho qhov rhiab heev ntawm silicon carbide.Tus ntes PIN(PIN Photodetector). Cov yam ntxwv muaj zog siab ntawm silicon carbide diodes ua rau PIN detectors tuaj yeem ntes tau cov teeb pom kev zoo dua thiab siv dav hauv thaj chaw. Lub zog siab silicon carbide diode tau raug them sai sai rau vim nws cov yam ntxwv zoo heev, thiab nws txoj kev tshawb fawb kuj tau tsim kho zoo heev.
Lub sijhawm tshaj tawm: Lub Kaum Hli-13-2023