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Midterm Exam Questions with Solutions - Solid State Electronic Devices | ECE 440, Exams of Solid State Physics

University of Illinois - Urbana-ChampaignSolid State Physics
Prof. Gang L. Liu

Material Type: Exam; Professor: Liu; Class: Solid State Electronic Devices; Subject: Electrical and Computer Engr; University: University of Illinois - Urbana-Champaign; Term: Fall 2010;

Typology: Exams

2010/2011

Uploaded on 02/27/2011

siucarlos
siucarlos 🇺🇸

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Download Midterm Exam Questions with Solutions - Solid State Electronic Devices | ECE 440 and more Exams Solid State Physics in PDF only on Docsity!

ECE 440 First Hour Exam Name: Solution Useful Data and Formulae: n, =1.5x10"°cm? in silicon at 300 K k,T (300K) = 0.0259 eV q=1.602x 10°C h=6.63x10™ J-sec = 4.14107 eV-sec c=3x108m/s 1W =6.24x10"eV/s f(E)= 1+ exp( -E, ) kT ng =n, expl(E, — E,)/ kT] = N, exp[-(E, ~E,)/ k,T] Po =n, expl(E, — E,)/ kgT = N, exp{-(E, — E,)/ kT] NoPo =" Pot Nj =m +N, J, = MH E J, = QD, E o= (nt, + PH,)=1/p I(x) = Ie" dn=Sp= gt, = neh Eat i R=pLiA T, =1/0,(M, + Po) (E)-F, Why n p=ne October 5, 2010 Section 2m kT 512 he } N= emake h N= 2 yr