MOS, Nws yog lub npe luv rau MOSFET. Lub npe tag nrho yog Hlau Oxide Semiconductor Field Effect Transistor (MOSFET). Qhov yooj yim tshaj plaws thiab feem ntau siv ua haujlwm ntawm MOSFET yog los tswj kev qhib thiab tawm ntawm S thiab D los ntawm kev siv hluav taws xob mus rau qib G, thiab feem ntau yog siv los ua hluav taws xob hloov.
Basic qauv ntawm MOS transistor
MOS feem ntau muaj cov yam ntxwv hauv qab no:
1. High input impedance rau lub rooj vag voltage, thiab MOS transistor rooj vag muaj ib tug insulating zaj duab xis oxide, tab sis lub rooj vag yog yooj yim tawg los ntawm hluav taws xob zoo li qub thiab high voltage, ces ua rau irreversible kev puas tsuaj.
2. Tsawg ntawm kev tiv thaiv, muaj peev xwm ua tiav qib milliohm thiab poob qis.
3. Ceev hloov ceev thiab tsis tshua muaj kev hloov pauv.
Cov yam ntxwv tseem ceeb ntawm hluav taws xob tsis zoo thiab cov txiaj ntsig kev sim tiag tiag ntawm MOS
Lub ntsiab hluav taws xob parameter yam ntxwv ntawm MOS
Raws li cov yam ntxwv ntawm MOS, feem ntau muaj kev txhawj xeeb txog hluav taws xob cov yam ntxwv ntawm kev siv MOS yog raws li hauv qab no:
• BVDSS (qhov chaw ntws tawm voltage)
Siv los ntsuas qhov voltage kuj ntawm DS. Rau lub zog siab MOS, qhov hluav taws xob tiv taus ntawm DS feem ntau yuav tsum nyob rau theem kilovolt. Thaum siv PROBE rau kev ntsuam xyuas qib wafer, rwb thaiv tsev fluorine roj tiv thaiv feem ntau yog siv los tiv thaiv kev puas tsuaj los ntawm huab cua tawg ntawm lub nti.
• IDSS (Qhov Chaw Leakage Tam Sim No)
Cov xau tam sim no thaum DS channel raug kaw thiab DS poob ntawm MOS hauv lub xeev tsis ua haujlwm feem ntau yog nyob rau qib uA.
• IGSS (Gate Leakage Current)
Cov xau tam sim no ntws los ntawm lub rooj vag nyob rau hauv ib lub rooj vag voltage.
• Vth (Threshold voltage)
Lub rooj vag voltage ntawm qhov dej ntws pib muaj tam sim no.
• RDS (on) (ntawm qhov tsis kam)
Kev ua haujlwm tsis zoo ntawm DS yog cuam tshuam nrog kev sib kis ntawm MOS thaum nws qhib. Qhov loj dua RDS (on), ntau dua qhov poob ntawm MOS. RDS (on) feem ntau yog nyob ntawm m Ω theem. Thaum siv PROBE rau kev kuaj wafer, plaub lub xov hlau kuaj ib puag ncig yog siv ntawm DS kom tshem tawm cov kev cuam tshuam ntawm cov hlau sojntsuam nws tus kheej tsis kam. Rau kev ntsuam xyuas ntawm lub zog siab MOS, cov khoom siv hluav taws xob siab yog siv, thiab tam sim no tam sim no tuaj yeem ncav cuag qhov ntau pua ampere.
Feem ntau siv los ua rov qab tam sim no los ntawm inductive loads.
• Ciss (input capacitor)
Ciss yog tsim los ntawm kev sib txuas ntawm lub rooj vag ntws capacitance Cgd thiab lub rooj vag qhov chaw capacitance Cgs. Lub voj voog tsav tsheb thiab Ciss muaj kev cuam tshuam ncaj qha rau ntawm qhov qhib thiab kaw qhov kev ncua ntawm lub cuab yeej.
• Coss (tso zis capacitor)
Coss yog tsim los ntawm lub qhov dej ntws capacitor Cds thiab lub rooj vag ntws capacitor Cgd txuas nrog rau qhov sib npaug, uas yuav ua rau muaj kev cuam tshuam hauv Circuit Court.
• Crss (rov qab hloov capacitor)
Qhov rov qab hloov pauv capacitance yog sib npaug rau lub rooj vag ntws capacitance Cgd, tseem hu ua Miller capacitance, thiab yog ib qho tseem ceeb tsis zoo rau lub sijhawm nce thiab poob ntawm qhov hloov, cuam tshuam rau lub sijhawm tig tawm qeeb. Lub capacitance ntawm MOS transistor txo qis nrog qhov nce ntawm qhov ntws tawm qhov hluav taws xob, tshwj xeeb tshaj yog cov zis capacitance thiab thim rov qab kev sib kis capacitance.
Qgs, Qgd, Qg-gate tsub
Lub rooj vag nqi tus nqi qhia txog cov nqi khaws cia ntawm lub peev xwm ntawm cov terminals. Thaum lub sijhawm hloov pauv, cov nqi khaws cia hauv lub rooj vag hloov pauv nrog qhov hluav taws xob, thiab qhov cuam tshuam ntawm lub rooj vag nqi feem ntau xav txog thaum tsim lub rooj vag tsav circuits.
Output yam ntxwv nkhaus
Kev sib raug zoo ID-VDS ntawm qhov tam sim no ntws los ntawm cov dej ntws thiab qhov siv hluav taws xob ntawm cov dej ntws thiab qhov chaw hauv qab VGS sib txawv.
Hloov cov yam ntxwv nkhaus
Kev sib raug zoo ntawm cov dej ntws tam sim no thiab lub qhov rooj qhov hluav taws xob (ID-VGS) hauv thaj tsam saturation ntawm MOS transistor nyob rau hauv ib qho VDS.
GRGTEST MOS hluav taws xob tus yam ntxwv ntsuas ntsuas muaj peev xwm
GRGTEST tau nruab nrog lub tshuab hluav taws xob muaj zog thiab kev sojntsuam sojntsuam platform, uas tuaj yeem ua qhov ntsuas hluav taws xob tsis zoo ntawm MOS transistors ntawm qib pob thiab qib wafer (ua ntej ntim thiab tom qab qhib).
MOS nplooj siab kuaj ib puag ncig nruab rau hauv GRGTEST uas tuaj yeem ua tiav qhov siab tshaj qhov ntws tawm ntawm 3kV (HVSMU, high voltage module), qhov siab tshaj plaws tam sim no ntawm 1.5kA (UHCU, siab tam sim no module), qhov siab tshaj qhov hluav taws xob ntawm 100V, qhov tseeb tam sim no ntawm 10fA, thiab qhov tseeb qhov tseeb ntawm 25 μ V. Rau qhov ntsuas qhov ntsuas tsis zoo, qhov ntau zaus tuaj yeem ncav cuag 1kHz ~ 1MHz, thiab MOS tus yam ntxwv ntsuas qhov ntsuas qhov ntsuas tau ncav cuag 100fF ~ 1 μ F.
Tshawb nrhiav platform