Cov nyhuv ntawm high-power silicon carbide diode ntawm tus PIN Photodetector
High-power silicon carbide PIN diode yeej ib txwm yog ib qho ntawm cov hotspots nyob rau hauv kev tshawb fawb ntawm lub hwj chim ntaus ntawv. Tus PIN diode yog siv lead ua diode tsim los ntawm sandwiching ib txheej ntawm intrinsic semiconductor (los yog semiconductor nrog tsawg concentration ntawm impurities) nruab nrab ntawm lub P + cheeb tsam thiab lub n + cheeb tsam. Tus i hauv PIN yog lus Askiv luv luv rau lub ntsiab lus ntawm "intrinsic", vim hais tias nws yog tsis yooj yim sua kom muaj ib tug ntshiab semiconductor yam tsis muaj impurities, yog li kuv txheej ntawm tus PIN diode nyob rau hauv daim ntawv thov yog ntau los yog tsawg tov nrog ib tug me me ntawm P. - hom lossis N-hom impurities. Tam sim no, silicon carbide PIN diode feem ntau siv Mesa qauv thiab dav hlau qauv.
Thaum qhov kev khiav hauj lwm zaus ntawm tus PIN diode tshaj 100MHz, vim yog cov nyhuv cia ntawm ob peb tus neeg nqa khoom thiab lub sij hawm thauj mus los hauv txheej I, lub diode poob cov nyhuv rectification thiab dhau los ua ib qho impedance, thiab nws cov nqi impedance hloov nrog qhov tsis zoo voltage. Ntawm xoom bias lossis DC thim rov qab kev tsis ncaj ncees, qhov impedance hauv I cheeb tsam yog siab heev. Hauv DC rau pem hauv ntej kev tsis ncaj ncees, thaj tsam I nthuav qhia lub xeev impedance qis vim yog cov cab cab. Yog li ntawd, tus PIN diode tuaj yeem siv los ua qhov sib txawv ntawm qhov impedance, nyob rau hauv lub microwave thiab RF tswj, nws yog ib qho tsim nyog yuav tsum tau siv cov cuab yeej hloov pauv kom ua tiav cov teeb liab hloov, tshwj xeeb tshaj yog nyob rau hauv qee qhov chaw tswj cov teeb liab siab, PIN diodes muaj superior. RF teeb liab tswj kev muaj peev xwm, tab sis kuj tau siv dav hauv kev hloov pauv, hloov kho, txwv thiab lwm yam circuits.
High-power silicon carbide diode yog dav siv nyob rau hauv lub hwj chim teb vim nws superior voltage kuj yam ntxwv, mas siv raws li high-power rectifier raj. Tus PIN diode muaj qhov cuam tshuam rov qab qhov tseem ceeb heev voltage VB, vim qhov qis doping i txheej hauv nruab nrab nqa lub ntsiab voltage poob. Ua kom cov tuab ntawm cheeb tsam kuv thiab txo qhov doping concentration ntawm cheeb tsam kuv tuaj yeem txhim kho qhov rov qab tawg voltage ntawm tus PIN diode, tab sis lub xub ntiag ntawm cheeb tsam kuv yuav txhim kho lub zog pem hauv ntej poob VF ntawm tag nrho cov cuab yeej thiab lub sijhawm hloov ntawm lub cuab yeej. rau ib qho twg, thiab cov diode ua los ntawm cov khoom siv silicon carbide tuaj yeem ua rau qhov tsis zoo no. Silicon carbide 10 npaug ntawm qhov tseem ceeb ntawm kev tawg hluav taws xob ntawm silicon, kom cov silicon carbide diode I cheeb tsam thickness tuaj yeem txo mus rau ib feem kaum ntawm cov silicon raj, thaum tuav lub siab tawg voltage, ua ke nrog cov thermal conductivity ntawm silicon carbide cov ntaub ntawv. , yuav tsis muaj teeb meem hluav taws xob pom tseeb, yog li lub zog hluav taws xob silicon carbide diode tau dhau los ua cov khoom siv hluav taws xob tseem ceeb heev hauv kev siv hluav taws xob niaj hnub.
Vim nws qhov me me rov qab xau tam sim no thiab cov neeg nqa khoom siab, silicon carbide diodes muaj kev nyiam zoo hauv kev tshawb pom photoelectric. Cov dej xau me me tuaj yeem txo qhov tam sim no tsaus nti ntawm lub ntes thiab txo cov suab nrov; Cov neeg nqa khoom siab tuaj yeem txhim kho qhov rhiab heev ntawm silicon carbide PIN detector (PIN Photodetector). Cov yam ntxwv siab zog ntawm silicon carbide diodes pab kom tus PIN ntes kom pom cov teeb pom kev zoo dua thiab tau siv dav hauv thaj chaw. Lub zog siab silicon carbide diode tau them nyiaj rau vim nws cov yam ntxwv zoo heev, thiab nws cov kev tshawb fawb kuj tau tsim kho zoo heev.
Post lub sij hawm: Oct-13-2023