文档介绍：Contents
Introductiorr----- --- 0
EnergyBands and Carrier Concentration I
CarrierTransport Phenomena ------ ---- 7
p-n Junction----- --- 16
BipolarTransistor and Related Devices- --------- 32
MOSFETand Related Devices--------- ---------- 48
MESFETand Related Devices------- -- 60
MicrowaveDiode, Quantum-Effect and Hot-Electron Devices ----- 68
PhotonicDevices ---------- -----------73
and Epitaxy------
Film Formation-------- 92
Lithographyand Etching ---- 99
ImpurityDoping-- - 105
IntegratedDevices--------- -- l 13
CHAPTER 2
1. (a) From Fig. llq the atom at the center of the cube is surroundby four
equidistantnearest neighbors that lie at the cornersof a
the distancebetween nearest neighbors in silicon(a: ) is
l/2 [(a/2)' * (Jzo /2127t/': J-zo/4 : 235 A.
(b) For the (100) plane,there are two atoms(one centralatom and4 corner atoms
eachcontributing ll4 of an atom for a total of two atomsas shown in Fig. 4a)
for an areaof d, thereforewe have
2/ &:2/ (,. l0-8)z:618 * 10laatoms / crt
Similarlywe havefor (110)plane (Fig. 4a andFig. 6)
(2+2xll2+4xll4)/JTo2 :,. 10rsatoms /cr1
.,
andfor (111)plane (Fig. 4aandFig. 6)
(3x I/2+3 x r/6)/ rlz|mlf : : * 10laatoms / crrt.
,ffi" I (9.
2. Theheights at X, Y, andZ pointare
/0, %,^O %.
3. (a) For the simplecubic, a unit cell contains1/8 of a sphereat eachof the eight
cornersfor a total of one sphere.
- Ma><imumfraction of cell filled
: no. of spherex volumeof eachsphere / unit cell volume
:1x 4ng/2)3la3 :52o/o
(b) For a face-centeredcubic, a unit cell contains1/8 of a sphereat eachof the
eight cornersfor a total of one sphere. The fcc also containshalf a sphereat
eachof the six facesfor a total of threespheres. The nearestneighbor distance
is l/2(a J; ). Thereforethe radiusof eachsphere is l/4 1aJz ).
- Maximum fraction of cell filled
- (1 + 3