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tv). C HanuntCtr'>thec'6aju" AMoc,'af-e

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IN -::. O·2....LltY'l to IDO..urn s

cha.\"\\"\J."rr~I«)

~ L- -.,)1

~I.DS

L z: 0, I ..Llf'Y') to .3 ..u f'Y')

~ me. Mas F-cT I'A 0.. ~'W'nmd-rlcoJ d~vitt....c ~w.

i/-h Acurt.(. a.nd drain LDn be. if)It'("cha"3~d

.w,~th no Cha.h~c.. In dt.v ice chal""D.ch y-,'(\ h'C,A]

(. I. 2. 0p~..,..aJian

JV'\OSFET OPE..R~TIONl-\)i th No ~ oJ.t. "0 l~e. CllAe.). ~ I- 1.:L to I· 2 .5------

Fou'C

~ 1_~_~_~~~_n_o~_b_;_~_~V~o_'~~~e~_Q~p~p_'_~~_d~_~--~--~9-~-~ ~o bQCk-~-bQCk

bt.hucu'\ dr-alII) and ADurre..

Dppll~d .

I~10 ..f1-..

I. \. 3 C.~n.kn9 a chctnne1 f.~ The.. .£eu~ D..nd the. J.•...ai!)..

\ ClPP1.i' of ~ the.. gak./t..

de. no~d. Q(,-\ VGts

1'hc.. pOl\ihVe. Vol~ on the. 9aX. La..UAct\ the..

o+e pOAI hvvlj e.hav-9-d) f1, be, rc..pe..\ led ..fJUl'"Y1

ALl6A1-r~ unde y- H-x 9cU-e. [the.. chcmnd.

rhe ~; 01') Of- ~

'----'-"~- -~_..oJ.._;on ) . '/)"'IU\c hol eA

-z s~ 0:l i -±1-.J .J __

'"-¥- s ..f .,I;klo

1 I- OJ

1~o .rc<:1 W-;;.c >\J v ..

~ \J 'IJ ,;:s 1111$ 0 >

(.) \.1 +~~ ~.., 0' .T> "j C

+ 2 8: 3 "<J15 cr;: .£ I;,J

3 I I C

~ '-0:r .•.

[

Vt :::.'Th'YVIhold Vtll bqt jMlnlmurf) VG,S '5L'1-u1 reo! h creak G\..

c0-0ud" "'9 eM n r.e.l

T,al'V\ lAW wi}-h C{ pM j bve

1M I\hoWY'lI

'n

L~ + + + -t -t-t- +-,~-rl-r-tr !",-

"

•I\

B

NMOS

VD I~t- app\l ~d

(1) e ho.l\f)Jo Invey-t\;{J(1 lCl.Jjey-

@ IhrtAholol volh,q<-

0\ i(kin

~nech'ns

fig. \.5

dIet; (')

~ /'JouJ if Cl. vol~~t. iA Clppli c-d be.h ..A_U.Y) d'TnIYl and Ao(...(rce C. u "'rrt n f-.)

,:?Iowf. ttwuu-9h <th'A j "c1ute..d n- rL9 "CK") •

-? 'Tht. indLlce.ol J")- ~lCK) thUl\~ C\. ~"nd... ~OY' c...u Y-"rC.r)~

4tcrvJ .:jY"UfY") drain to Aol..lYU...

The.. MOSf:E.T Ahov.J'() ,'n r=,'9' 1.5 I~ c...cdl~J an n--cho..n1'"\d. MOSF~

CJY c.l }-cy"oJ-) v « l)' , ClY) 'NIVl<OS tya1'W'\ r~1-cr.~ ~ I nol LU..t.c1 chCt'f)Y1d iA Cl.L~o c...a.lloc...cl Clh - , to.~e..-r:,, nVUltllJr,

S,·"c..e 1tx chClnn~ jt\ cn:.o....kd b'j I'nvfyh'r<J I\U bA 1.cJ.t ~(...(o.=fCtce.

r- type. t-o n- hJpe.

nurnbey- D;f. rncbi le,

channel

Vt·-------------------? The. vcJu~

~ Vi: 1'/\ ecnN-o 1kol duri"9 de.vtce.. 4 a b-n c.et.k Ct{ or.d

hjPlLltl1 ~ L l-tl\ If) ~ "YClfYJc:.. ~ Q·5V to I, o v

'-7 The. gcUt- unol chanr0 re..f/;ctr) 9f the. MM~ET .:tCJrm a. paTal1J.

ptoJt CApctc i f-oy--" lA:)ith fh~ c:x:.!'de. la.ytY CtCt5r.q aA 7-he. c.qpad tay

dt-t..le..d--nc.

La) The.. ,pCr\;HVt. ~a.k voL~~ c.QUI\<;\

p~jH~ eha.yS to a cc..u I"rI ulo..h.. oY\

th<.. top plcJ-c.. C;tf.fu.. c.Q pet C I}-oy-

C i ..e.. ~ gctk e..1~cfy"de)

lb)

c..b) ~ n~cJ..;,,<. ~cJ.c..

CcLUAY\ r'te..jcJ1vc.. chao9t...

(J'() the. ,/-0 p pI cJt. cq.. tht.

ve I r-o.c,e.

kJ D...CCurnwo.h,

c..a. p QC i f-oy-,

Nol-t...! 'The: CC¥YoA pcncl. in.9 rrc.~cJi v e.

chCl-rqe.. en the.. borl-oYn pLa...I-c.. I'A

4<rrrrkd b'j the... e...Ie.ch-onA ,'n t1rx

incluce..d. channel.,

the. c ha nnd

CUYYC.I"'II-- thcJ- W'J'IIwhen 0. vol ~{

-

E 0( ~!Y cho.nnd.

•'os

I.I.~ a. £rna\ t

We.. rioco appl'j

~OU'Jce III 1="$' (. 6

\:I >V

®Vos: CctLW.(\

,~ t-o :f-/ow

f-he. ,'n eLuud

v" lG.s t

S-l Gl l-=1- s 0

Ir ~=j[) - t i~= 0 J'0 -

r~ r~/ / / /-/ / /

;k ~ io

h+- I n+Indu..cal --'

h-chcmneJ

P --hJpe SL.L b<.tra.h

I

-L-

(£) V&s :=. VI; J it) I';'

n~II'1Jibl'j t'\rna.tt

~ M VG,s e)((f_u:1A vt/

'the c J-onne.l ccnd ucl-ctr"lt.-

,.t/>lt\I l' f'\ ?yopcrd-JCV) +oOV~'Cn'dt Vol ~e

1Vov ::. v~s~v~l

f--..1ol-e- :

+Vos (S I'l'lClIl )

Co.UAtA j t> +0 .flow-t"hyo~ '"' ~ i~Ll.CLd.cho •...•nd.

App)~~t'\3 Yes

- c~ Ex.Co..UM..\ OY1.f-t-

c.u~n~

j os 0( Vo.s

1[)S 0( "SJ - \J t

a.nd. with a..

v~s..

curren}- ~ to 4/0W 1hYDU~1ro, 'D

c: U 1rrt n)- it\ ca.oJ (d b~ rfre.e..

SoLl¥ce to dy-ct~().

(V6,S - Vt)

(V~s - v.t) VDS

.

and +hUA .'t>

/he. Vo Irnc,echannel .n

(HenQ

-7 corwenh'onJ

.H, will

'A h 0 f-- 1'1 ho lAJY)

do-aiY! /

-7 'The mn.,qf")i1ud~ ~ d~petlcb. 1h~ d~ry..jty e Ie c f-ro r"\A.~ 'n (1Y) 9f-

;r) fhe. chanllv Luh,'ch ,'" fuon cI e p e r-.c1.A an <the TYl ag III hide.-

% VD.$'

elt.C~

c.hCtl)ne.J..

v~s. - Vt: / chonneJ fA JLk\1- ; r-.du..ce.&,

CtA~n}- c.ancluc+rcn 11\ ne.9l~9i6Ij srnctlt

40r V r;..s > Vt /'I) <:rYt. e.le.c~ are o..-H-.a ckd I'!lt-"/

tht ch:tnrd .

-7 /he 1&\u..1r- ;A Q. ChClYl~ ?1= i1'\ C ~Ctt\f. d conclu. d'ance CJY

-I.n;{- 0td-J

+o__ 1-h.e. e.x_aM 9a.k. Vo~e.. C VG.,s - Vt:)) o.l;\o Ic.ncn...un

V~l~ ()I 1-hL OV~y dYlve 'Volto,e...tCrchoW\nc1.. 0( V~s - Vt

VG,s =- V~ + :lV

o·~

0-2

VG,S = Vi: + O·5V

0·1

o 50 150 .2.00100

E.n honorY)(nJ- _hjp<.IVlOSpe';'T

'ThL c.P--.cm rod ;1\

~",haN~d b~ ,'nlr(CU\I'''j

Vr;.,s bLljond ~

t-hrtAholol Volrc.q<. Vt-

0:U..,«>-r 0( vGiJf:-oY ~rnClI t VDS ~

MOSFe,'r OpfYa.h~ Ot\ a.

II nt.Clyo ot41t\ h:rr- wl"OM.

Vc.U.UL I'A. c.cr./rolkd b'j

Vr;.sV

DS (1Y"l\l)

~hOWA .slCe.kh .Vert\U/\ VD.5. +Cff 'VClo10"UA VoJU~/j----7 F/:J- I·f- a. % ID

~ V6J5

~ The. /V'IOS f::E.T Optyo...hll aA a linwy ~iAm.YVL LDhMt VcJue i;\

ccnl"'ndl,- d 6"j V&.s,.

(M v~~ e sc C~e...dA Vt·

FC1"r rhe. Mo $F-ET 1u condud-.J o, c ha r1'nJ. hC(A ~ be Incluce.c1.

7ht..t') irv: rtQ.AI''1 V61.5 CI bave.. ~e.. thYt/\hol cl Vo'h:u(e Vt; en hcrnr,(,1

the. channeJ. heh{e. t}..L 1\0. ("{')(,A C\ hart"anen~ mod~ °rroJ;flt1..J

and ~~nl- ~PL ~osr=er.

-t :,'Y\o..IIIj " the. CU~P')I- rheJ- le o:v</\ the. SQ1...( YCe t-ermir,oJ C is) ,/\

~9--ua1 fo f--he c.ury-ttJl- thc.J- enl-crA 1-he. d'OClI () reo rninaJ (;D)~

or'\d <The. 9cJ.t c.uonnr iG, =-0. •oOt4"..-alli on,·,.5 r-

1/\ held

-~ The. VDS a. ppe.O'iA CJ.A a. vol~< d~p 0.( yt) AA the. I<-ng f+) Qf-

fh<- chonne.l C muv-urtol -re IoJ-tve. tv ~ AOLl.'OCe)

Ar\ .l.,AX. {'love) oJDY\9 -the cha'nAe. ( (YCfY'Y) AOu"rCe. +0 d,a II'")- .J

~ Vo l/-u.qe.. ir-c nClMA 4YUfY1 0 toVD5 •

'The Vo ItruJe. bt..huc-e..n <the go.k fiJ ' ,1, a~ po~nh\ alftnj the C~r)nJ•

dec YL..CV,tA 1Y1J"l\) 'V~ oJ- 11-le. sou.-ce. e.rvcl +0 VG-,s - VD s oJ-H-x

ch--aln en.d.

-7 The.. c hol"'lneJ.. de.pfh dtpencl,+, 01') th,'", v61~~J i~ Can be /\('e" thoJ- /tv.

C~ann.J. r.A no 1~gey #- unitor-r\) de.pth .

-7 c-rhL c~~ Wl'lt f-ctKf... ~ t-ape.'re..c1 +C5trYl etA I"\ho-wn if") FtS' \.8

"Ic,= 0''.s ~ If> VG,s. + J..~ +4::-- -l ~ r~J 0 - "DS---::: I-S -:z

n1-Yl-channJ

n-T--

<t> ~" ~ +ro..vJ olcn.j 1hL

ch::tnne.t 4'rCJ(Y) gOU'lU. h eh-a.lrI

H?e. vol h:.cye. )"'e..tcJ..Vt: hi Aou-rr~

,nC:rtlVlq\ 4Y<1YT1 0 ro VD5.

® f.{mce. +he. Vo I ~L b~.e.n the.

scJt. Ctnol. p<h""h\ eJ.cns the.

chanod decn:QJ\('; ~ VmS

oJ-- HIe. Aou ICe.. t-u v4~ - VD~

o...r- tr«. d -r-a. r 1'\

chCtnne1

VCl/~e..

l·g ~ channJ i,A...J

-? AI\ YDs. t ~ chcmr.cJ be. CC¥Y">e.t\ YYICrrt.. 1-o..ptYLd ard ~I-;i\

nA,"r\ h::t nce... i('\C rr aJ\c../\ c~por.djr;J\:J .

Thut\ the. ;1:l - VD~ c uYVe. datA nor contll)u(. etA CA.. S,1-rCI1' 3 h}-

l;ne. buJ- be ncLt\ ClI\ r\ hcsu.rn ,"n r:,' :)- r . q

Vo I h::le.

e VG,D == V-c '\./6,S - 'VDS = V~ =-

rc.ho.nnJ. l-tn,q~"'\, ,\C' l'Aod.u1c.n~eu. YV<.. bt..nd.A --+----...rx.c. o..UJ\ e. *"e..

c I-oI'\W YU\ 1'1\ h::m4_

incY"t.OAl./\ INrH, Vos

C.UoyLn~ ~io..hA be.co.LlAe

1f/e.. c \.--c.nnct i;. p,rc~d OffcJ- ~ dyo.lr) end" Clhel VDS

a~;f eel-,.. the. chCtI"\ne1.

Alm~t- a. Af....o'·9~

Ifr'.(. LA-'l"lh s lopepyopooHor.oJ. h:>

CVCn~ -"1::)

v~s :::> Vi-

JL_---..l.-------------7 Vf:;St

® .b. rD - Vr->s cuoVe. doet\l\o~

h.Jn.j Q. ..t ~C\ 1'1) h~ )\~ bt.J-.be nclA c.v. ..t he wrv.

~ DYoin C.UYrtnt

~N tv\ 0.$ TyO. rv\)'·,A. 1m-- Ore -roJ-c.. d

-----------------------wtl-h

"\!DS

C 1h~ooe...kc.a.1 [~ " hO e44€- d-) . on <the... c hClnne.1. t1hap~ .

-7 /he... c..U~r)r- 1h"YO~h the. chonr'lJ T~ mo.l fY\ C CYI,A. h=t nr- oJ- t-he vo.lue.

VDS =. VG,S - Vi:

~ 'The. ch-a.ln cuoycn)- ~~ aJ-- f"h1'A vCtlu.e. or-d. The. MOS~ET

IA ~cl.I'd n, hClV-e... e.T\~ rrd 1iJ{ ~a.N yo....h'Otl OLstc¥) % Opt n:J,'0tI.

Vo Irn.c,L

VDS ~C.J-

Fo-o VWLlL

i.f \iDS ~ "DS cJ-.s •

!he. ~~ - 'VDS

C hCl oCt-d-t Y'I/\ h'c,A ob)---O J n~d ¥r~ YUp'on 9f 'D

V < V "/\ CClII~d f"he.. Mode... ~,onDS D5 s.aJ--

_-----------\-------=:::::""1 - - - - ~ -

"-10k:

Vos CJbove

-7 F\.-l"'dt){. -r: v\'r\ ucJ;:5 "':j fuL eJf..f.e cJ % Vns t"\ hIn...lff) I'n r::"j '-..0./

r< Ie e. h:he.;\ If!f- the.... chD.r'lneJ. CV\ '\Ias I'A { 'rI C n:... a..1'\ c. d wh;le.....

v~s - 1<e..pJ.- Cc:n-\ I-an)-.-

--T ··rh-e.OTLhca..ll \j) o.n~ Inc.rtQ..t\t.. In '\IDS a b::rve VD5 scJ- C= V G,s - V t )

ho.ve.. no e...t+e..cl- on 1hL.. c..hanne...l -0ha.pe and ~ ivnp1j appeQ~

cle. plwc;(") 'OE~ t()Y"") .s«-oroU."din9 the.. c he 1\neJ.. a..Ylcl

ID - 'V DS Re.I cJ.l CJ()Ah, Po

I~s Vo'l-n.qt. a.pp"e.A bd-uJc.en scJ.e and .£curce.

Vr;.,s > Vt Inc1u.u/\ a.. chollr'le.,(J

<t« !~~ ~CUo(e

Co...po. c; .fvy- e;f- VWU e.

~'lC. H obc

___ ~---------bT.H~----------~

SOLtYc.e.

I f,, , \

-< 'E = _ chtcx)

I eJ-x:...) \ )\ 1_~v(X____------------~~~~-----------7.-----~>Vol~e

f) I ~1 1 1~ YDS1 \ I dv ()() ,, I 1

___--------------\~~~,----------~--------4) .:x:..

o L

iD~ - 'IDS

a

a.

-7 :q ~ capoc,ro,r p-ty u.nit- o 'lSL.-Q ;h 01 e (")0 /-Ld at\ COXQ",,-c(

fhL +hie 'f-N 1\1\ cq- th~ O')L,cI~ laye v: ,/0. tox .I1heF")

C. O')L .::.

f..ox- l1rrr7-- G)to:x:..

1""'\ NY"C..Eo x.. =. pey- rn ;Hlvi ~ ~ ~ s: I~COr') d.'DXlde.

-I~

€ox- 6:. IS = 3. <=l >< 8.85'1 x 10- 0

-II~6x.. ::. .3. 1-i5 x 10 F1m

-7 %e ox.'cle th,' c. \C ne.M t-o~ .'A cJ eJ-c 1 ryJ; f"'\ e.d 6j tht: ?yo(eM

f-e. chr1 0 IOCJY UA-e..d h ;f.ctb-nco..ft fu MDSI=-ET.

-to hJ Cttpo.c16-0nlJ.. be.ha.tn

SM q channd

-)13. L-t S X t 0 (F/M)

I o X. I o~9 lfY1..)

c. W dx.Ox

so..k cC(pncl i-ont£.. .I W~ rnulHp1j ~ c.o p CI.c.j l-n VlLc.~ the ~eckv~

Vo(~~ be.J-wc.en tho{ Sa.k and t"h~ channd c.J- poi f") f- x:: /he..

q.f.ecHvt. VoH"'c~LJe. .,'A the. vor~ ru.ponl\l' b fe, ,:fer(' in clac.; r\j 1h<.•..

c hc.l1nel cJ-- PD"'nr- x. and 1'/\ rhUA 9IW.V) 6'j ['\.I - VLX) -VcGiS ~

\.1 ex.)::. Vo I h:uje In thL cho.nnd o.J. pr-in+- :x:.

d'i-- -

t?J- ~L ChCl nneJ. cJ- peri () ~

[VGts - <r c«: - VtJ~..,.d-:;-'Yf- V~Ih>-9~

--CD(cotUN'\ b)

an el ecrrsc.

ne..s oJ) ve "::C. d feLCh' OYI. f}r- pcsinJ- X 1h,'1\ 4-idd Can

~ the.. othey h()l"tcl t: ex) :::cl vex.)

lA..' • K. 'I dx.

be.

~7he. e..1~ch-1c 4-!dd E"Cx) CCtU/\{A ~ e /ect-r-on chcn-cJt dq. h::,

chi.fr- roLUCJ,.Y-O( rhe.. d'Cl.J'n WIth a vdoci hj • dx.. -dt-

Vdoci~ - c1x. ).1n € ex.) J' "- -- ~~ r) =- 5. u.q-o.u )VI ob;I;~clt

= -J.-l [- otvcx)ln ol:>c J [N-E.jcJ)V.(

VeJo,t-ihj

~4-;ft..C f-

Al'gn in thl.

CLt cou rlbl ;feY the.

'* e lah-orv.]otxdl:

)...tn d Vex) G)d'X-

wn.ert ..u. = mob? U~ ~ eI~c~ .., f"I the chClnnJ CI'r .s;:UT,fct~n.

mobi 1\ ~ [ penn rne.f-c y- dc.pe.ndA (!)f) the 4a. bncol>Ol".

proc..tM +eLhnc!o9Y J

doi;p- , .. \

I Co.!') be.. 0.1\

i =- dq,dt

•• d~ d~, =: x,cI~ clt

4c;y- ~ chCl."'o/ PCy Llnil- ItnStiJ dq, 4rcrn E~n. G)~

e.le c h-o-n

..I iA

•,

1 • ),

o 0

'D =- -I

..ID - .A...( n CO-X

"DV(X)

01. X

iD. Ox. =- .-Ltn. COx.. IN [Vrs,s. - Vt - vex) ] olv (X.)

above.

to x-= L <rc»: =- 0 t-n V CL) z; "{S

VDSf -"-\"CoOL w [VG,s - Vt - vex.) J 01 v CX)

oo

~0TRIODE Rt.C):rON

/hi'" iA ~ e « p¥t 1\1\ ien ~..'n

\ r. 11In the. TR. LOD E REG-. LON

~ 'lht.. vexlue. % the.- c.U'OICnf- Ct~ ~

eq..u;vcJ-e.nH 'j al- thL b~9illn-)n~

C.a.n bt- Ob}-Cd-n~d 6::-/ ~u bt\h ht.k'~

~~~ 9/- 1iJe. h-1 0 de 1fLtj 1Ctl

9/- ~ A o.J.u.- cckCK"l ")(l' 5{CVj

'VDS = v~s - Vt in ~n. ®:2-

[(V.,S ~Vt)]

(V~s-V-t)CV~-Vt) - L-

I.• .i, e~) LV.,s - Vie)'- \I :::. ( J-.-t n LOx.)D :2

fhiA IA -the. c:x. p"'OtA Id 0\') .--r- <the.. 0 th<:.If) ;f-dY

- ,'",he" it'\. ~ ~ cJ-u ""~'CN1 ....-e.j \ Cff) .

CD @

o

'f)

~ E9,. tJI>. ® and 0 LCtn be.. woiHLn II') .ft'rnA % pyoceM

h-a.rnccncluc I-ar.u po Y-D ('() eny CK' ) 0-1\ Jo IlolM'\ :Y\

k' ::::.Mn Cox. ® C Ir/v~)n

.'D - 1< \

n--@

For< T !tIODE REG-ION

,At\Pe.cJ Ra.ko_w--1-

chGt"nJ. w.'dtiol:: cho.nnv k"1 th

e

'b =- -' 1<.'.:2. n

SATU RATION

C L) lC-ncruK'\II

O-t\ pt.c I-

L anel.

7- v c hCl vo.c I-tOl't\ h'c A .

L """'•""rI

.In :1..003"

MO~ +-e.chY\o lDC;Y 11\

chCinneJ f.trt~1h ThcJ- ,'/\ pOt\t'd blc W)'l'h Ct S hILi')

u~e. c1. tu c hCI)'-C{ C I-tn,1e. fhe.. plOcet\1\ Qnd

~c1.uce d

® LOY)I'\,'de.-« 0.. pYU C-LIV\ +l'- c. h n 0 IO~pl .:f<rr w hi c.h

J-t",:: 1-(50 cm'/v . ..s a.nd Vt- =- (J.";fV.

(0.) 1=,nd 1<' \r\

(b) F~ 1"1 OS r::ET i.N'rh IN g,unt cd c-wo..k ~ vo.JueA <l/- VG,s0- ::

I- o·g,Mrn

an.d. v nee.ded +-0 opt......-o....k 1t-e. +-r-o.,lA)1\ h:Jy- 'n <The ~ o.Ju ocJ..'CJ.r)

DSI"(l'f'l

l C) FoY +he. devIce.. in

SoluJion :-6

L..."...,- :: 0.1; ...u.m = 0·4 x 10 YTl,",nDaJa.:

..J...t,,:: 1-150 C ,.,,2. /v- S

(See.

E', :::3- '1_11-

Go ~ 8.&'54 XID

_II

Go>C.. = pt. .• rniH-jvit:J '4 £'1'01.. :: 3.45 X 10 F/rrt.

-II3. !-is" x: 10 F/rn

Cox. :::.

-3/.-.j.3.2.12.. x (0

1<.'1l ::. )...tn C O::>L