Electrostatic Sensitive Devices

8/14/2019 Electrostatic Sensitive Devices

1/7

MODULE 5.12

ELECTROSTATIC

SENSITIVE DEVICES

JAR 66 CATEGORY B1CONVERSION COURSE

MODULE 5DIGITAL TECHNIQUES

ELECTRONICINSTRUMENT SYSTEMS

ukengineering

1 ELECTROSTATIC SENSITIVE DEVICES

Static electricit i! "e#erate$ a#$ !t%re$ %# t&e !'r(ace %( #%#)c%#$'cti*e+aterial! a#$ $i!c&ar"e! t% t&e (ir!t a*aila,le "r%'#$ !%'rce- Ite+! !'c& a!&'+a# &a#$!. air. a#$ "la!! !t%re &i"& /%!iti*e c&ar"e!. 0&erea! /la!tic! !t%relar"e c&ar"e! %( #e"ati*e electricit-

Ta,le 1 li!t! t/ical +ea!'re$ !tatic c&ar"e! (%r t&e &'+a# ,%$-

SITUATIONRelati*e H'+i$it %( Air

L%0 1)23 Hi"& 65)43

V%lt! V%lt!

ali#" acr%!! a car/et

ali#" %*er *i#l (l%%r c%*eri#"

%rer at ,e#c&

Vi#l e#*el%/e! c%#tai#i#" 0%r i#!tr'cti%#!

7%lt&e#e ,a" /ice$ '/ (r%+ ,e#c&

%r c&air /a$$e$ 0it& 'ret&a#e (%a+

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12.

6.

9.

2.

1:.

1.5

25

1

6

1.2

1.5

Static C&ar"e!

Ta,le 1

1.1 HANDLING OF MICROELECTRONIC DEVICES

T&e *%lta"e a#$ c'rre#t re;'ire+e#t! (%r +icr%electr%#ic $e*ice! are %( a *er

l%0 +a"#it'$e- It i! t&ere(%re #ece!!ar t% %,!er*e !trict /reca'ti%#! t% a*%i$

$a+a"e %r $e!tr'cti%# 0&e# carri#" %'t ('#cti%#al te!ti#" a#$ (a'lt $ia"#%!i!-

T&ere are !%+e $e*ice! 0&%!e circ'it! ca#. , t&e *er #at're %( t&eir

c%#!tr'cti%#. ,e $a+a"e$ %r $e!tr%e$ ,


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MODULE 5.12

ELECTROSTATIC

SENSITIVE DEVICES




ukengineering

De*ice

Electr%!tatic $i!c&ar"e ra#"e 0&ere

$a+a"e ca# %cc'r >V?@iel$ e((ect tra#!i!t%r! >MOS@ET?

C%+/le+e#tar +etal %i$e !ilic%#

>CMOS?

Sc&%tt $i%$e! >TTL?

Bi/%lar tra#!i!t%r!

7reci!i%# t&i#)(il+ re!i!t%r!

E+itter c%'/le$ l%"ic >ECL?

Silic%#)c%#tr%lle$ recti(ier! >SCR?

1 2

25 2

8 25

8: 9

15 1

5

6: ) 1

ESD Se#!iti*it Le*el!Ta,le 2

1.2 STATIC DAMAGE

I( !tatic $i!c&ar"e ca# ,e !ee# %r (elt. t&e# it +a ,e a!!'+e$ t&at t&e /%te#tial

$i((ere#ce /ri%r t% $i!c&ar"e ca# ,e +ea!'re$ i# t&%'!a#$! %( *%lt!- A! Ta,le 2

!&%0!. t&i! i! +%re t&a# e#%'"& t% ca'!e $a+a"e t% a# electr%#ic circ'it-

T&ere(%re. electr%!tatic $i!c&ar"e $a+a"e ca# %cc'r e*e# t&%'"& t&e $i!c&ar"e

i! %( i#!'((icie#t !tre#"t& t% ,e (elt %r !ee#- T&e l%0 e#er" !%'rce t&at +%!t

c%++%#l $e!tr%! ESD! i! t&e &'+a# ,%$ 0&ic&. i# c%#'#cti%# 0it&

#%#c%#$'cti*e "ar+e#t! a#$ (l%%r c%*eri#"!. "e#erate! a#$ retai#! !tatic

electricit-

1.3 PRECAUTIONS

I# %r$er t% a$e;'atel /r%tect electr%!tatic !e#!iti*e $e*ice!. t&e $e*ice a#$e*ert&i#" t&at it c%+e! i#t% c%#tact 0it& +'!t ,e ,r%'"&t t% "r%'#$ /%te#tial ,/r%*i$i#" c%#$'cti#" !'r(ace! a#$ $i!c&ar"e /at&!-

I# a*i%#ic 0%r!&%/!. e;'i/+e#t)c%#tai#i#" ESD! i! !er*ice$ at a# electr%!tatic)

(ree 0%r!tati%#- I# "e#eral. t&e 0%r!tati%# c%#!i!t! %( a c%#$'cti*e 0%r!'r(ace 0&ic&. t%"et&er 0it& t&e %/erat%r a#$ t%%l! i# '!e. i! ,%#$e$ electricallt% a c%++%# "r%'#$- T&e (l%%r area i# (r%#t %( t&e 0%r!tati%# i! al!% c%*ere$0it& c%#$'cti*e +aterial a#$ ,%#$e$ t% t&e 0%r !'r(ace-

T&e %/erat%r 0ear! a 0ri!t !tra/. 0&ic& i! electricall ,%#$e$ t% t&e 0%r !'r(ace

t&r%'"& a re!i!ta#ce >1 2 M?- U#$er #% circ'+!ta#ce! !&%'l$ t&e %/erat%r. %r

a#%#e el!e. t%'c& t&e ESD!. %r a!!e+,lie! c%#tai#i#" !'c& $e*ice!. 0it&%'t (ir!t/laci#" a 0ri!t !tra/ i# $irect c%#tact 0it& t&eir 0ri!t-


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MODULE 5.12

ELECTROSTATIC

SENSITIVE DEVICES




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1.4 STORAGE AND TRANSPORTATION

&ere*er t&ere are ESD!. t&ere 0ill al!% ,e t&e /r%,le+ %( /r%tecti#" t&e+$'ri#" tra#!/%rtati%# a#$ !t%ra"e. a#$ !% !/eciali!e$ /aca"i#" i! e!!e#tial (%ri#$i*i$'al $e*ice!. 7CB +%$'le! a#$ t&e c%+/lete LRU- T&e /aca"i#" (%r$e*ice! a#$ 7CB +%$'le! tae! t&e (%r+ %( LRU!?. c%#tai#i#" ESD! %# aircra(t. t&e(%ll%0i#" !a(et /reca'ti%#! +'!t ,e %,!er*e$-

a?- All electrical /%0er (r%+ t&e !!te+ !&%'l$ ,e re+%*e$ , /'lli#"t&e !!te+ circ'it ,reaer>!?-

,?- I( t&e /%0er i! #%t re+%*e$ $'ri#" LRU re+%*al %r i#!tallati%#.tra#!ie#t *%lta"e! +a ca'!e /er+a#e#t $a+a"e-

c?- A(ter t&e re+%*al %( a# LRU (r%+ it! rac. a c%#$'cti*e !&%rti#"$'!t ca/ +'!t ,e i#!talle$ %# eac& %( it! electrical c%##ect%r!-U#$er #% circ'+!ta#ce! +'!t t&e electrical /i#! i# t&e c%##ect%r!,e t%'c&e$ , &a#$-

$?- T&e c%#$'cti*e $'!t ca/! (r%+ t&e '#it t% ,e i#!talle$ ca# ,e '!e%# t&e '#it ,ei#" re+%*e$-

e?- T&e re+%*e$ '#it i! t&e# tra#!/%rte$ 0it& t&e c%#$'cti*e $'!t ca/!(itte$-


4/7

MODULE 5.12

ELECTROSTATIC

SENSITIVE DEVICES




ukengineering

Aircra(t are %(te# (itte$ 0it& rac! c%#tai#i#" re+%*a,le circ'it ,%ar$!. %r car$!.0&ic& %(te# c%#tai# ESD!-

D'ri#" t&e re+%*al a#$ re/lace+e#t %( t&e car$!. t&e (%ll%0i#" /r%ce$'re i! t% ,e(%ll%0e$

a?- T&e ,%$ %( t&e %/erat%r +'!t ,e "r%'#$e$ , '!i#" t&e 0ri!t !tra//r%*i$e$. c%##ecte$ t% t&e a//r%/riate "r%'#$ ac-

,?- T&e car$ i! re+%*e$ '!i#" t&e t%/ a#$ ,%tt%+. %r le(t a#$ ri"&t.etract%r! %# t&e car$- T%'c&i#" t&e c%##ect%r!. lea$! %r e$"ec%##ect%r! %( t&e car$ +'!t ,e a*%i$e$-

c?- T&e re+%*e$ car$ i! /lace$ i# t&e c%#$'cti*e ,a". 0&ic& i! t&e#!ec're$. i# acc%r$a#ce 0it& t&e +a#'(act'rer! a//r%*e$/r%ce$'re-N%te S&%'l$ t&e ,a" #ee$ t% ,e !ec're$ 0it& a tie. c%tt%# t0i#e!&%'l$ ,e '!e$. !i#ce t&i! i! F#e'tral a! (ar a! !tatic electricit i!c%#cer#e$-

$?- T&e re/lace+e#t car$ i! t&e# re+%*e$ (r%+ it! c%#$'cti*e ,a" a#$i#!talle$ (%ll%0i#" t&e /reca'ti%#! li!te$ a,%*e-

1.6 LABELLING

A# %,*i%'!l i+/%rta#t re;'ire+e#t i! t&e i$e#ti(icati%# %( t&e /aca"i#"c%#tai#i#" ESD! a#$ %( a# a!!e+,l. ,e it a 7CB %( a# LRU. 0&ic& c%#tai#!ESD!- @%r t&i! /'r/%!e t&ere are !/ecial $ecal!- T&e!e are a((ie$ t% /aca"i#"a#$ a!!e+,lie!-

I# t&e ca!e 0&ere t&e c%##ect%r /i#! %( a# LRU +a ,e !'!ce/ti,le t% a$i!c&ar"e. a# a$$iti%#al $ecal i! %(te# a((ie$ #ear t&e c%##ect%r a! a 0ar#i#" t%/er!%##el #%t t% t%'c& t&e c%##ect%r /i#!-

@i"'re 1 !&%0! t&e t/e %( ESD !+,%l! a#$ la,el! i# '!e t%$a-


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MODULE 5.12

ELECTROSTATIC

SENSITIVE DEVICES




ukengineering

ESD La,el!@i"'re 1

COMMERCIALGOVERNMENT INTERNATIONAL

(BOEING)

CAUTIONOBSERVE 7RECAUTIONS

@OR HANDLING

ELECTROSTATIC

SENSITIVE

DEVICES

CAUTIONTHIS ASSEM7LY

CONTAINS

ELECTROSTATIC

SENSITIVE

DEVICES

STATIC

SENSITIVE

STATIC

SENSITIVE


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MODULE 5.12

ELECTROSTATIC

SENSITIVE DEVICES




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7AGEINTENTIONALLY

BLAN


7/7

JAR 66 CATEGORY B1

MODULE 5

DIGITAL TECHNIQUESELECTRONIC

INSTRUMENT SYSTEMS

MODULE 5.12

ELECTROSTATIC

SENSITIVE DEVICES

ukengineering

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Electrostatic Sensitive Devices