Cov qauv thiab cov ntaub ntawv ntawm lub siab tshiab SBD yog txawv ntawm cov tsoos SBD. Cov pa SBD yog tsim los ntawm kev tiv tauj ib tug hlau nrog ib tug semiconductor. Cov khoom siv hlau tuaj yeem yog txhuas, kub, molybdenum, npib tsib xee thiab titanium, thiab semiconductor feem ntau yog silicon (SI) lossis gallium arsenide (GaAs). N-hom semiconductor cov khoom raug xaiv los ua substrate thiaj li yuav tau txais cov yam ntxwv zoo zaus vim muaj hluav taws xob ntau dua li qhov kev txav mus los. Txhawm rau txo qhov kev sib tshuam ntawm SBD thiab txhim kho qhov thim rov qab qhov hluav taws xob tsis ua rau cov kev tawm tsam loj dhau, cov txheej txheem siab n-thin feem ntau yog epitaxed ntawm N ntxiv substrate. Nws cov qauv duab kos duab, cov cim kos duab thiab sib npaug Circuit Court. CP yog lub plhaub thaum uas tig mus capacitance, LS yog cov hlau lead inductance, RS yog lub series kuj nrog rau lub semiconductor lub cev tsis kam thiab cov hlau lead kuj, CJ thiab RJ yog lub hlws ris capacitance thiab junction resistance feem (ob leeg yog lub luag hauj lwm ntawm bias tam sim no thiab bias voltage) . Raws li peb txhua tus paub, muaj coob tus conductive electrons nyob rau hauv ib tug hlau conductor. Thaum cov hlau nyob rau hauv kev sib cuag nrog lub semiconductor (qhov kev ncua deb ntawm ob tsuas yog ib qho kev txiav txim ntawm qhov loj ntawm atomic loj), Fermi theem ntawm cov hlau yog qis dua li ntawm semiconductor. Lub electron ceev nyob rau hauv cov hlau yog me dua li nyob rau hauv lub semiconductor conduction band ntawm lub zog theem sib raug mus rau lub semiconductor conduction band. Yog li ntawd, tom qab ob qho kev sib cuag, electrons yuav diffuse los ntawm semiconductor mus rau hlau, kom cov hlau tsis zoo thiab cov semiconductor raug nqi zoo. Txij li cov hlau yog tus neeg xyuas pib zoo tshaj plaws, cov nqi tsis zoo tsuas yog muab faib rau hauv ib txheej nyias ntawm atomic loj ntawm qhov chaw. Rau n-hom semiconductors, tus pub impurity atoms uas poob electrons ua zoo ions thiab raug faib nyob rau hauv ib tug loj thickness. Raws li qhov tshwm sim ntawm kev txav ntawm cov hluav taws xob ntawm cov khoom siv hluav taws xob los ntawm cov khoom siv hluav taws xob mus rau cov hlau, thaj chaw them nqi, ib qho hluav taws xob tsim hluav taws xob thiab lub peev xwm thaiv tau tsim, thiab cov txheej txheem depletion tsuas yog nyob rau sab ntawm n-hom semiconductor (tag nrho cov. lub peev xwm barrier cheeb tsam poob rau sab semiconductor). Tus kheej tsim hluav taws xob hauv cheeb tsam barrier yog qhia los ntawm cheeb tsam n-hom mus rau hlau. Nrog rau qhov nce ntawm tus kheej ua teb ntawm kub electron emission, lub drift tam sim no rov qab mus rau lub diffusion tam sim no nce, thiab thaum kawg mus txog dynamic equilibrium, tsim ib tug kev sib cuag barrier ntawm cov hlau thiab cov semiconductor, uas yog lub Schottky barrier.
Thaum qhov kev thov voltage yog xoom, qhov diffusion tam sim no ntawm electrons yog sib npaug rau qhov rov qab drift tam sim no, thiab qhov sib npaug dynamic tau tiav. Thaum siv qhov zoo ntawm qhov hluav taws xob (piv txwv li, qhov zoo voltage yog siv rau cov hlau thiab qhov tsis zoo voltage yog siv rau lub semiconductor), tus kheej tsim teb tsis muaj zog, thiab lub peev xwm barrier ntawm semiconductor sab yog qis, yog li tsim ib tug zoo tam sim no los ntawm cov hlau mus rau semiconductor. Thaum rov qab kev tsis ncaj ncees yog siv, qhov kev tsim nws tus kheej yog txhim kho, qhov siab ntawm qhov barrier yog nce, thiab ib qho me me rov qab tam sim no los ntawm semiconductor rau hlau yog tsim. Yog li ntawd, SBD, zoo li PN hlws ris diode, yog ib qho khoom siv tsis muaj kab nrog unidirectional conductivity.
