Dab tsi yuav ua rau lub transistor puas?

1, Cov yam ntxwv ntawm lub cev
1. Overvoltage thiab overcurrent
Overvoltage thiab overcurrent yog cov feem ntau lub cev yam ua rau transistor puas. Thaum qhov hluav taws xob los yog tam sim no los ntawm lub transistor tshaj nws cov nqi ntsuas, nws tuaj yeem ua rau muaj qhov tshwm sim loj xws li PN kev sib tshuam tawg, txheej txheej metallization hlawv, lossis txhuas hlau tawg. Overvoltage tuaj yeem tshwm sim los ntawm lwm yam xws li xob laim, hluav taws xob hluav taws xob, thiab hluav taws xob hloov pauv, thaum overcurrent tuaj yeem tshwm sim los ntawm kev tsim hluav taws xob tsis tsim nyog, thauj khoom luv luv, lossis overload.
2. Kub
Kub kub yog lwm qhov tseem ceeb ua rau transistor aging thiab kev puas tsuaj. Transistors ua kom sov thaum ua haujlwm. Yog hais tias lub tshav kub dissipation tsis zoo los yog qhov kub thiab txias ambient siab dhau lawm, nws tuaj yeem ua rau muaj qhov kub thiab txias ntawm lub transistor, uas ua rau kom cov khoom aging, txo kev ua haujlwm, thiab tuaj yeem ua rau thermal tawg. Ntawm qhov tsis sib xws, huab cua tsis zoo ib puag ncig kuj tseem tuaj yeem muaj kev cuam tshuam tsis zoo rau cov transistors, xws li cuam tshuam rau cov cab kuj.
2, Chemical yam
1. Corrosion
Cov txheej txheem hlau thiab cov pins ntawm qhov chaw ntawm cov transistors tau yooj yim corroded los ntawm cov tshuaj nyob rau hauv ib puag ncig, xws li ya raws, kua qaub thiab alkali gases, ntsev tsuag, thiab lwm yam. Cov tshuaj no tuaj yeem ua rau cov hlau, ua rau corrosion, oxidation, thiab txawm tawg, yog li ntawd. cuam ​​tshuam rau hluav taws xob kev ua tau zoo thiab txhua yam muaj zog ntawm transistors.
2. Kev ua qias tuaj
Plua plav, roj thiab lwm yam kuab paug nyob rau hauv cov huab cua kuj tseem tuaj yeem ua raws li qhov chaw ntawm cov transistors, tsim ib zaj duab xis conductive lossis txheej rwb thaiv tsev uas cuam tshuam cov cua sov. Cov pa phem no tsis tsuas yog cuam tshuam rau lub tshav kub dissipation ntawm transistors, tab sis kuj tseem tuaj yeem ua rau muaj qhov tsis zoo xws li luv luv Circuit Court thiab to.
3, Mechanical yam
1. Mechanical stress
Transistors tej zaum yuav raug rau cov neeg kho tshuab kev nyuaj siab thaum lub sij hawm installation, tsheb thauj mus los, los yog siv, xws li kev co, cuam tshuam, dabtsi yog khoov, thiab lwm yam. Cov neeg kho tshuab kev nyuaj siab no yuav ua rau looseness, breakage, los yog pin dabtsi yog khoov ntawm cov khoom nyob rau hauv lub transistors, yog li cuam tshuam rau lawv cov hluav taws xob sib txuas thiab kev ua tau zoo. ruaj khov.
2. Ntim kev puas tsuaj
Lub ntim ntawm lub transistor ua haujlwm raws li nws qhov kev tiv thaiv kev tiv thaiv, tab sis nws kuj yuav raug puas tsuaj los ntawm lwm yam. Kev laus, tawg, thiab deformation ntawm cov khoom ntim tuaj yeem ua rau ntim tsis ua haujlwm, ua rau lub transistor poob kev tiv thaiv thiab puas.
4, Cov khoom siv hluav taws xob
1. Electrostatic paug (ESD)
Electrostatic tawm yog ib qho ua rau muaj kev puas tsuaj ntawm transistor. Hauv qhov chaw qhuav, tib neeg, khaub ncaws, khoom siv, thiab lwm yam tuaj yeem nqa hluav taws xob zoo li qub. Thaum cov khoom siv hluav taws xob zoo li qub tuaj rau hauv kev sib cuag nrog lub transistor, lawv yuav tam sim tso tawm ntau tus nqi, ua rau PN kev sib tshuam hauv lub transistor tawg lossis txheej txheej metallized hlawv.
2. Electromagnetic cuam tshuam (EMI)
Electromagnetic cuam tshuam kuj tuaj yeem cuam tshuam tsis zoo rau cov transistors. Muaj zog electromagnetic teb tuaj yeem cuam tshuam nrog lub xeev ua haujlwm ntawm cov transistors, ua rau lub teeb liab distortion, muaj suab nrov, thiab kev ua haujlwm tsis ua haujlwm.

https://www.trrsemicon.com/transistor/p-channel-enhancement-mode-field-effect.html