第一讲固体理论信息与电子工程学系

SolidStateOffice:微电子 PhilosophyoftheLearntostudySMART,notstudyQualitativerather ApproximateratherthanMostimportant,developcommonsense(whichisusuallynotcommon).Manythingscanbelearnt,butnotAdvancedversusfundamentalKnowledgevs.applicationofThinkingvs.ProblemwithconventionalCurrenteducationsystemwasdevelopedintheindustrialrevolutionanddoesnotfollowtotheinformationeraTeachingknowledge,butnothowtoapplytheObedienceismoreimportantthan2monthsaftertakingclass,howmuchmaterialcanyoustillrecall?KnowledgeisnotusefulbeforetheyareKnowledgeisnotimportant,butmethodtolocatethemisPhilosophyoftheDifferencebetweenScientistandScientistsfocusonperfectEngineersfocusonapplicationsandefficientScienceismostlyabottomapproach,startfromaphenomenaandlookforapplication,Engineeringissupposedtobeatopdownapproachstartingwithaproblemandlookforthemostefficientsolution.PhilosophyoftheWhatdoIFocusonthelearningratherthantheTrytolearnonlythekeypointsandforgetaboutallunnecessaryinformation,Enjoy

1年月日晶体的周期性结2年月日晶体的结3年月日4年月日5年月日金属电子6年月日能带理7年月日能带结8年月日Final9年月日Final固体理

半 电

介 低 1.1 bi 区，BZ，or简约区。 1.2 1.3 符号: 转换 为：=1,2,3,4,

为3度转轴加上对称心：，，，，，，

a≠b≠c，α=γ=90°β>90

α=β=γ=90

4六角晶系7.立方Cubic 当

3a=R+r)

R18643致密度

aRaR=2 22 a3·2=

=6

4 m'!+n'b+p'mn, m'n':p'mn:

晶列指数：[mn开原点距离等于 X•n=X!!!X•n=sacos(a,n)= tacos(a,n) cos(a,n):cos(a,n):cos(a,n)=1:1 !!!X•n=a1,a2, !•!

!=h

a•n=h cos(a,n)=h acos(a,n)=h cos(a1,n):cos(a2,n):cos(a3,n)=h1:h2: 第4 cos(a1,n):cos(a2,n):cos(a3,n)=h1:h2:

等效晶面数为6，8，12。{100}:（100）,（010）,（001）(100),(010),(00：岩石是构成地壳的基本部分：按其成因分三类：

导电