ee321ch9

ee321ch9 - Solution.- Find: - . Dcmibe 81: mics-umple mam-e...

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Unformatted text preview: Solution.- Find: - . Dcmibe 81: mics-umple mam-e of mniwndupto: materials. What are. the that: most commonly used semiconductotmtcdals? v Mahala: . Smiconduetm' materials are crystalline with :11: atoms waged in a repeawd tbree'dimnnslonal array. The distant: hem am in the myis the "latfice cousmt“. ' Bach mum ofa samicondtictar has four valency desirous. Thane electmns participant iu'covaient hands with the valance :lcctmns ofothct mint. - . ' - - For cumin materials with- thn 11:0me:: alum, quantamlwav: mwhanics predicts that the maps: cinemas may haw a. total energy [ldnedc plus Coulambic potential enemy] Within canalrr “unwed: bands. Thu two mostimpor‘taut MB In Ihevatmca bang containing Lhnvalcncc electrons inco'vflent . JimfldkwmmmMMmmmm.wmahwmmw -. .._. ._. m _.V. _._ tomapcfromimeovalentbond. ‘ A ' Seminar mm (m altowad hands in :11: “entry gap" minding ova: fins: energle's which flue amen; m "fmfiiddcn' to have. ' - Pat-semiconductor mum-ills, the cnergygap is up Iha ardar of] GIMME-Volt [cV]. . - Silicon is the most common semiconductor mania} and Is used in variety afajzplicaliou and devices. mum is used inputs optical'doviws and othcr spacial pmpBSfl devices. Gafllum Amnide is a compound III-V 5mm: mantis]. One atom has time and th: uthcr has five dens giving mavmgeaffom'pcramm R151:de microwave. opfiwJ,'mdve4yhighr.-paed digital devices. _ Matte: .- '- ~ - Sciatica;- Describe dae'chcrmal pmduntinn orchmgs can-Ears in a. swimmich Mathew this grows: limits the opmtion of: mafia-mum: dcvim ‘ a u 9.3 -...._...._\.._... a I i i i t \ i \ \ t W G. Rizzonl. Principles and Applications offlnctflcal Wanting Pmfilm solutions. Chapm- 9 . Analysis: Arniempemtmcofabsoium 2m. ambulance dam in usemicondncmrareccmninndhaqovaiau , handmd themmNOdmrg: . A 'lhcinteijnal orthemialcnargyofuolidmnmn'alis canscdbythe vibralionofdxc atom: andclacirum ghouth cqullibfium position. [he Brynn-min: ofmemnteriai humus. Its lhetnu! vlbnfinnal energy vacancy in the film band covalent bond or “holc' inaposidvcchugacurier. Acondllcflanbandmeflsugiwupenel’gyflndrmmmnefiflhsrflmbaadhok. ‘ The gencmfiqn and recombination man ham Incrcase with impel-aims. At any particular magnum, they are equal and pmduw equal equilibrium dgnsiiins nf electrons am! halos. Thu equilibrium can-in: densities hmnsewiih temporath Emsmmn :1 T- SODliIappmfimwyx-oam Imperative]: n. = 4.5101“ “mm =1. 10“ “am” no pl: c1213 5 I m3 . [Anan crawler: is adimnnsicnieas qnmfltynnd maybcomiflcd tmmthe unirn] Almost all somiaonductou during: at: " pod". yo whine ammu- duuiflnn ofpnsilive and negativc earths. A 'P—typo“ aemicoudumnr has a higher density or. positive swim and an “bl-inn" semiconductor has a higher density of negative can-1m. Home; at high Immature: the density of rhumafly 9:0de caning-a become: wry tars: ahd significantly when or nunifigs lhc effects of the doping. ie, 111: punitive and nczafive tamer denslfiaa become nearly qua]. Fol-611's mason, snmicondnctor dances sauna: be used in high remain: applimtiong. m limit in Icmpemnne dopds on 11:: semicondmmnmrcxifl. - Prgbla‘ ‘ Solution: ma: ' . Demib'e the pmpeztins of donor acceptor dapnnt amine and new they affect the mass of charge - Garden in 1 scmicondtmr mntntiai. An "acceptor" dopmt atom ins 3 mm cinemas; hownvnr, 4 mmpiral In cumme the banding sanctum in the acmflxmduclnr minds]. The 'missing" 411! electron causes a vumcy or he]: in 11:3 Bonding mantra. Anoma- mango elecan may more In and occu'py this hole Inns eliminating it pad ‘gmuafiag mlharhole and a ncgzflveatomicion. Thniunls immobflennd camel: mowthmqghth: min-1:1; Ibex-arm's. IT IS NG‘I‘A. CHARGE - ' End: mm: conlnihntna an nddifiami positive: came: lo :11; magma-I. minueasad density ofpoailivn carriers faults in an m mmhfnaflm rate which rean the 6:55in arm:ng curlers. [Thu PRODUCT of the two dnnsitiqa tannins column] Mntnrials doped with acceme atom: are P type 9.‘ ' ems. nindplésandhppiicaum ofEIectriualBufimerins Pmbfamsohfions. Chapter? aminsle mmicandm. Tim mjodw car-tors 'ara valance baud 110159. the minority carriers in: common band alum-ans. Solution: Find: Sunicandmratomsarcaozshswnmfiwtwofiswu Thu circles rem ionimd 69pm mums and the undrdudplmmdminusdgnsmmahmgewdm. Thsdonedfinamlhefimfigimrcpmcms hawfurhe depletion/Spam charge region extends irm the P and N ‘ regions. NmmejuncfiomthznegnfivamminMNmid ‘ recombine mm am positive mm in thc'P mm Whmamuunéglnnondrhnraideofawjmcfion ) which is depleted olehmgccauisrs; www.mnion'md dopanrammarcinunnbile andremlin. Hindu-Mann Nmmfialrhemgimhaszmtpmlfivcaargaminflm Pmarcriallhe regioulnsamnsgafiw charge. This region is called Bithpr a "depbrnn- region {demand of czar-ins] er a 'space char-39' region [due 1:: tbs depart ions]. ' HaconducuonbandfluohdmnlamjodxycmfiafliuflmfimmfiaitdesmmimothaPmrer-M.it cinnamon and is mpoflnd by mane; nagafiveczhm {due to the ionized maqntor atoms] In finds-plum lfa valmbmd hole [a micdtycmfim'] in the P mam-Eu Rise In crossinmfiac thnNmatu-ial,itemmt=raandis manned bytbcnet positive charge [club to the ionized dnnm' atom] in the daylcwd part out: N mill. ' - TurnpuhiunoftherfirdmismmfizedaaaCudombic . . ' ' :k-ns— mmmpMmrw-"mwmfl ““ — "" junction. Ohm's law réqujrcs :1: current to be 2m. AOiufiiiy. vary. - ! my small equal but opposite cur-mat: do flow was: (1:5 junctinn ‘ huruaenercurentiawo. - Th: barrier: can be Emmi 1:2 sypng I 'forward bias" veiling: masthajunctian. This aflommmcanimmcmmnjunéfim andwhcnthis voltagelsgrcamflmn aunahzvalualOJVfa: Silicon} aaignlficantcment [millimsz flows. - Thu ban-Ear can be mm by applying a "reverse bias” Voltage 1mm rhejmdon This increase thc harder and fewer majority carriers hm mlficiuat energy to mm 5:: junction, in, the cm: - emfinfly cram. Howevu', there is a VERY. VERY Smafl 'marsa mafion cum-m" {In an: fimmampa ranng due In the minority cam'ars. Since the: minority claim asthma-ally produced. mi: currrnr is dependent an temps-21mg. Wins ‘H~( B?!)le AfiSUMe. RE 3 5d). L A \on. 1-] W‘N 0“ 0 + VWV'j + No L Jam,” 23 lg, vwov Mk mm: W \hcl \ZV _ VA: \oV . . \j‘, : \o-n— "1V cicer {s RB .fisngxdk was Cowcdc, _ Sth 0.9 0.10on ,flxCep1 MK) VA: \sv \h>= \€-—\Z = +3v ~ ‘. Abate Vs RB OSSUV‘APMM N01 5a. A K ‘0‘“. va MW} ‘2‘, w + loV 5n. .vl \ILT- \OV 's‘mga. CW} 0 dud,‘ means Vlmfi 0V I +5JL {A \IA 3 To £ A m+ 5V ‘ \‘LV L 5"» 'I; E!- : \oqA \oxa, - ‘. Acgéxt (3 RB A€SUMP'\‘\"\~ CNYQUE 9J0 °\.\\ 942, To QM). \IA '- ‘ ‘- SAMQ. as QA fixceplc ‘ Vic: \SV V13: 331- \S 1 -\\%_,V QM} ’~ RB gKMQ, 0.3 (Lot itct'p'l‘ now 2.21 \on, = V3“: L‘suflL'mA) = Riv VA -.-. \2 é—rs-‘L = -\!;,v V»: -l"7,—- lo i= —-u%,v Com): “3 Skvwe. I 015 fixcep'l' ' VL=15V ‘ 7.7. L: J— : \OVL \JSUL: LSJL\LZQ.A\ '-' “V \JA 2 run : \V MI IQ. IV“ E’som, ‘ * \IL= 2v USing 113M , RB 05§UVkPJfiM V1) I I VA: Vin Sin Le. Wm = m; 3"“ “1 \JSOOVL: 0V Snug, \lmt \IA—VL MAL V520 QNFB‘ x Msz Jay M Acacia. 4o \mvg. ' .Vk': 0V 'Sinuc. ‘39 ‘Jf‘fwu 2t ok-Qfizfigfi) RI _ - Vfifi-‘Js [mg t'ogxsolue. >0 _' O ° Vi): C'voHoggjo] «O U950. ’ so 3_ U;- Vgto 34-14..“ VAAVI: W5 40 ‘ - &;¢&Q- 3:5 W UL;OU' J nai‘HWU Ex; ‘.'0 92). q. Cm) mm. £0va vac-16.. 40 ‘We. Moog 1.4M mans; Alwolfik Amok ublwn. {% {a 1:73.. For ' c‘wmfl ; mew. i 'Qbuos‘ whim +L€ gom’fl vex-Egg. is :15 14$ 5pm». . mfiiqa -’"FV‘DW\- 301': “wk: 5 Urawg 7' @501”: 763V 'LM,L : _% a M . ' on) m. pm mm wage. vans—wit j- mu-.‘._Qm,_-.mg,mxm..;&_;gg33_h_ I FIN” AIRS Livcufl’ 1' “Roux-1U. Mvo‘ss Armck , _ ' mfiJ‘s -‘ wk“, 4M; “wwLe. mHoga i3 oft ' ' ' {XS magdfiw’. 'pecxk. . . ‘ MPH—d W ,. ‘Vflmwt -70.?V 0m r V - .‘ w 3 . + V1; .7 S * Emu : ——>1——. F's . W50 . ' RB, \1540 Vb=VA+VK - .9.) RB casum Acacia we,“ 17)., A- ggR—Jisv ‘ ' f” I an VA ‘-‘ DU LCMM'EA 41 3M.) 7 I 7 _. V2,: 5V Elem: .Uoprogg names R sing: {:0 {no 75H» 5%,;an U1) 2 ‘3.)- E ,I A Kb) FE I a; mark" WW \IA; \EV Vb: was = 5;! =3 123 i b : - VL: 5v "5—7-2 to) R133 j AW: 4 V1551! =3 ubnisv ' ' (on F8 ) VAa—EV M 42v 5%: '77“- aka) FE ‘ NA}; 0V flaw-A \hc': «W 53V»: 10V m; a “I, . Afi‘sume. Awaits own “in; Z O ...._,._ . A...“ ' 0m Assumg, $.1er is VA: LN ) gun-A ‘o‘xme 13C. $60th ‘rs conntchi ‘nefimem We. on)» final. Aasumivg oher is 6PM J "W: '6 ‘fiin ('ZfiécTH) _ ‘6‘th (:th $Qrte$ 12$ thntcgltei ' OL'Y‘Q‘f‘: 0L. schc... Valuer. ‘ 3h; . . . .I—ls w + . Va 5 . - ‘i .‘ "*' - + wka; W. 7 W- {anal 1'5. 28 M 'V9: 55‘“. LBIDDDTH‘) $1.65 A‘lM. ‘0\6v»~ \ha SLR! ‘ (Ataxia, {to F8 Lwlrfiéxeu‘w M \fof: HV' 3mg, \onfi‘R-ea \1 \bwUVo. -¢\.32 e _ , 3 ' Erma' - “11.x,” ._ + U51 I '1' : .3V '=. 'TkemCua a VA 2%1 3. 3.7V 41w cit-MM; 4n . ‘L3E Le] Assuming ion—“J O‘NAQ— ‘ VP 0:" ou¥yo¥ 7' V? a)" “Wu-l. \lp \§7.\ .— .—. —-—-—-- : HIJV \lwrms "a VN mind Si (Noam '. \hms :LM 2: l|0.(olo\/ f —“n'—: *- 2“: N‘WW J. n . 7 Solution: . ' r E Amfifiermil mum thatoffigurwlibuad Mam IamACaom W301? (m). = Find: . Thu peak and avenge amen: In-tho laid. manna: Ideal diode. Analysis: Thapcd: voltag: is ' - _ Va 301/5 V," =30J§v=+gkm afu-fi-wam ‘ 'Iiheavmgc man: lath-Judd in 9.20 - -.v:.._._..._.u.. n ...,.__v__......... . H ,_ <1 .37 I G. Rmoni, Pdndplu and Won: «WW; Pmblan solutions, Gupta 9 1: I,“ =—?={‘)_135A Solution: Knmqmflfiea: . _ A laminar chum similar to tint offimysi Load Ream 220 9. AC source vallaga 25 V (mus). Find: Thepeakanda‘magc :mrin 11:: load. Ampflnns: Idtal diode. .- o mmwnggcii ' V. . ’2542‘ V...“ =25~i§v=> 1M =—f-=—1~o-D—=a353A mamagcwmimhelaadis 1* _ I," 2—5-0412“ ~ 9.21 . .____..,_...J,. I PD-W‘wg W higuéfive (Iii-«CAL mg US i ‘ “B2 Mun/3C } Fbx (in — DC." Value, :79 bfivpdjf 1 {3:13}; H—m wawe vadihw\ ' _ - q 1 V1; V} a; E Q mu= ‘2‘“ “ QM F Jr Ar L‘qq L 1% mm 5b 2 83a; R m: r“ LM ‘goo ' 43M. wolw at fesaJroa/Lca \E ELM“ Ze- Lr ISU‘EA‘ +b Wodk ) V121,: I I in v . '. h. 2 I M0\*6%Q~E\VL§P\{ 2‘1 4 3 130, EL ‘-“-\}%=‘S-l2 Rt, 8 ti gosq I To 11‘“; RLMin ‘ k-‘Uminf, +\.e_ ball V5fi£ufi§ +\~a\- Cam ‘l'kc' 1M 30%“: *0 WAUCJ") VRL: \l'i: . I t \ __ ‘ KL -- - 05mg \1 5 $1“. §D[RL+30 -— \f%-H 80m, =. H Lama) 3694. = L{10 LEM! " -"""' - V1; NV ll’fin s }W 30 f A L“: \.z-— .as'vl - 8%}! m “M V1; \le KW:.—" :. -—-"" : Maui‘s], mm -%‘DflA 7 ‘ Range, cA- at, is \\.lo7 +0 Hoolol J), 9.60 D‘o‘wg 1AM haw Merl (9Q ‘ low» + 50:» VA=0V (Shel) Since; VD < V1=f7o7V ‘ 1061; \s RB m.) anaboldng O-U\Cng \l‘ct Sowcc. o£ Vt, clog? -- - Solution.- Kugwn quantifies: ' ' mm mammal; Diode mungth Fm ~13 VJWQG mA; v3.5 v. Find: mm quantities: mmmmmmm4. Diode vm =1.5 vuwao ma; VF: v. ' m - Wnammpowmmmpummdmepmmmbyfln voihgcwm mmwmwmnflonn Pm =If',_al.,1’1m m45mW Thgpowraqlfiredatmsamwk If, =V31m =15!) 111?? 9.4! i i l i i | | | : i ...
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ee321ch9 - Solution.- Find: - . Dcmibe 81: mics-umple mam-e...

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