Exam03 Marked Charts & Formula Sheet_ECE474_S07

Exam03 Marked Charts & Formula Sheet_ECE474_S07 -...

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Unformatted text preview: gonstams and 1?? omulias «31 me = 9.1x“) kg 23 k 1.38 x w" E/K : 8.62x10-5 eV/K KY for T = 300 K = 0.0259 6V RT for T = 400 K = 0.0345 6V h = 6.63 x10=34Js —3 ’5 = 11/27: =1.05x10 4Js c : 3X108m/s so =8.85x10=14F/cm = 8.85 x1 1ev = 1.6x1049} -8 -10 ._ = 10 m a” g e“? 1] =1N-m 1N =1kgm/s2 1Volt=1J/C 1Farad =IC/Volt W 92“ 1 kGauss = 10-5 Wb/cm2 = 10- V s /cm 2 2 1 Boron: [Is ]23 2p 2 2 6 2 3 Phosphorous. [18 ZS 2P 135 313 an ForSiat300K ni=1.5X1010m—3 — . . .7 ForGeat300K ni=25X1013 3 Egap=0.67eV sR=16,0 15 V cm_ . F01" Ge at 400 ni=1.0 X10 Cmug Quadmtie female: wb 3': \/ b2 ~ 4m: space charge neutrality: p0 + Nd no = ni exp (E1: =- Efi/kT P0 2 Hi exp (E1 — EF)/1<:T 2 “01% 2 11i 5P = gop Tp 5n = gOp Tn AB = hc/A Capacitance = 3 Area/ distance I = charge/time = 5P 2 gap Tp 5n = g0p ’En AB = hc/k Q/V (unit charge) (Concentration) (Area) (velocity) lop = q A gop (Lp + Ln +W) qu 11: kT In 133% Elm gi‘ W = Xno = H KNa (L. +__1__\ W(1+Na/Nd) W/(1+Nd/Na) g E E é é. E g LP 2 \l Dp Tp and Ln = Tn Diode Equation: 1 = qu D12 pm + DH n \ (exp qV/kT _ 1 K LP Ln ) =X /L V/kT 113091) 2 CIA Dp Pn exp n p (equ _ 1) LP ~x /L V/kT In(xp)= qA 92% exp p n (equ - 1) Lr1 Qd=qNaW Qd=quW Cj=8;/di VT goal: VT + qion Ilicnn/ Ci = ~ - TB. mg «a 9 ID kN{(VG VT)VD 1/2VD ; figfifiwfifigfi \ $363; kN = gnZ Ci /L 3 1D 2 “2 3 «iii? 5% pr» 3 5”, 2i 5 i 3’ 5 3 § ‘ = C1 @Xp xn/Lp + C2 @Xp'xn/LP C1 = gc —AEE6X9’X“/Lp ' L P exp 9 — exp" C2 = AEEBXEm/Lp - ARC P exp p - exp’ APE = pn(exp WEB“ ~ 1) Apc : pn(€Xp chB/k'f _ IEp = qADg { ApE ctnhflb ~ Ape csch flhfl Lp k Lp Lp J IC = qAD_9_ { Apg escth — Ape c’mh m} Lp K Lp Lp) IB=qAD_ (APE +Apc)tanh% LP 2Lp 2/: [HP \ IEn+IEp 32:2 IEP I 3:43— B I a=——C— E g ...
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This note was uploaded on 06/26/2010 for the course ELECTRICAL ECE474 taught by Professor Tran-le,j during the Spring '10 term at Michigan State University.

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Exam03 Marked Charts &amp;amp; Formula Sheet_ECE474_S07 -...

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