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Universitatea Tehnica a MoldoveiFacultatea Calculatoare,Informatica si Microelectronica

Catedra Microelectronica si Ignineria Biomedcal

Lucrarea de laborator nr.2isci!lina " M#$

Tema"Cercetarea caracteristicilor ca!acitive a structurilor semiconductor%semiconductor i metal%dielectric%semconducor

& efectuat" st.gr.I'BM%()( Co*acenco m.

& verificat" lec.univ. Cretu +asile

Chisinau 2(-

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'co!ul lucrrii " eterminarea !arametrilor structurilor cu bariera semiconductor%semiconductor i metal%dielectric%semiconductor !ri metoda msurrii i !relucrrii a caracteristicilor e!erimentale volt%farad.

Considera ii teoretice

$cua ia $bers Moll

'chemele echivalente de conectarea diodei.

a/ b/

Fig.( 0 schemele echivalente de conectare a diodei a/direct b/invers

Fig.2 'chema echivalent a 1onciunii !%n.

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Tabelul (% coneiune directU 3+/ .( .2 .) .4 .- .5 .6 .7 .8 (

Cd 3!F/ 2(.-7 2-.7 4).(2 8).65 (6(.( 25).6 )--.) 44-.6 -2).7 5( 4429 3m'/ .(88 .28 .(4) .65 (.86 ).85 5.)8 8.- ((.52 (4.4( 2.)

Tabelul (% coneiune inversU 3+/ ( 2 ) 4 - 5 6 7 8 (

Cd 3!F/ 2(.5 (2.2) 8.)2 6.7( 5.84 5.)7 -.85 -.5) -.)6 -.(4 4.8-9 3u'/ 2 ( 5.5( 4.2 2.62 2.) (.7( (.62 (.55 (.5( (.5

Fig.) e!enden a volt%farad !entru Cb

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