最新半导体器件物理之物理电流-电压特性精品课件.ppt

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1、290 xnDxnxnU-2n2nnnnnEE0 xpDxpxpU-2n2pnpnpEE100 xp/p/npnxpD pp-nnnpnnn2n2aanonE双极扩散系数nnpnnnaD/pD/npnD双极寿命UnnUppnonnona0nnnnnp0 xpDxp- pp-2n2pnppnonE0 xpDxpxpU-2n2pnpnpEE110 Dpp-xpppnon2n2pnL/ )xx(T/qVnonone ) 1e (pppkpppDL) 1e (LpqDxpqD-JT/qVpnopxnppnk) 1e (LnqDxnqDJT/qVnponx-pnnpkTqVexpp)(pnonnxxno

2、np)(px121314) 1e (JJJJT/qVsPnkpnopnponsLpqDLnqDJ15TEexpTTTEexpTg)2/3(2/g3kkJ00pnnppnopsLpqDJ D2ippNnDqTDpp/设TEexpgkT/qVsFeJJk/ )(expkTqVEg 16TEEexpnpTEEexpnn)(N-UGtiinPitinn2tpnthkknnpinn17eiitiPitntthnpnnTEEexpTEEexpN-UGeiw0genWqnWUqdxUqJ182/1bigen)VV(J3/1bigen)VV(JeiD2ippRWqnNnDqJqkTVnppno/3|,0结np

3、1920TEEexpnpTEEexpnn) 1e (nNUtiiPitinT/qv2itthnpkkkiT/qv2itth2npn)1e(nNUk2T)-q(expT)-q(expn) 1e(nNpniT/qv2itthkkkT)-q(expnpnnp2i210)(npddpppndndp2np T2qexpnnpikV1)T2qVexp(2n1-)TqVexp(nNUi2itthmaxkk22tiitthW0recNn)T2qVexp(nN2qWqUdxJ)T2qVexp(nN2qW)TqVexp(NnDqJitthD2ippfkk)TnqVexp(Jfk)T2qVexp(nN21Uitth

4、maxkqkTVnppn/3,00且2324dxxdndxxdp)()(DnNn00np25dxdpqDEp pqJpp dxdnqDEn nqJnn 0 dxdpqkTdxdnDnn1n1En )1(npdxdpqDp dxdpqDp2 26SJVVV 0S)0(lnVnxonnqkTEdx pn/pnnep)p(noino/kT)(qVnoJ02 JinVnpqkT 20)ln(inJnpqkTVV0ln2 27/kT)(qVnoJep)p( 0nopppLx ,1 /kT)(qVpnoJeLpdxdp1)ln2(exp2 inpqkTVkTqLpDqjnopnopp)2exp(2kTqV

5、nLDqipp 2829(qIR/kT)(qV/kT)IkTq(V-IR)IISSexpexpexp30jwt1oeVV) t (Vjwt1oeJJ) t ( J TqVexpppnonk TqVexpnnpopk31jwtn1nx)e(p) t ,x(p T)eVq(VexpPPjwt1ononkjwto1noonoeTqVexpTqVPTqVexpP kkknnnnpxpp)( ppppnxnn)( 322n2ppnnxpDppj 0)j1/(Dp-xpppn2n2 p 0)(p-)(pDt)(ppn2n2pn nonnnpxxxx0*Dp-xpppn2n2 pppjw1*33 xxxxpxpnnnn0)()(11)exp()()(11 pnnnnLxxxpxpnxnpnpdxdpqDxJ|)(11 )/exp(01kTqVLqkTVpqDPnop pj1/ ppLL34 TqVexpj1/LnqDj1/LpqDTqVJonnponppnop11kk dd11CjGVJY )/exp()(011kTqVLqkTVnqDxJnponpn nj1/ nnLL)()(111nppnxJxJJ 35T/qVnponpnopdo0eLnqDLpqDTqGkk T/qVponnopdooe2nqL2pqLTqCkk