74
Contents 1. 1. TFT LCD TFT LCD 기본구조 기본구조 2. 2. TFT LCD TFT LCD 기본원리 기본원리 3. 3. TFT LCD TFT LCD 기본공정 기본공정 4. 4. TFT TFT 공정개요 공정개요 5. TFT 5. TFT 제작 제작 Flow Flow 6. TFT 6. TFT 제작공정 제작공정 7. 7. CELL CELL 공정개요 공정개요 8. 8. CELL CELL 제작 제작 Flow Flow 9. C/F 9. C/F 공정개요 공정개요 10. 10. C/F C/F 제작 제작 Flow Flow 11. C/F 11. C/F 제작공정 제작공정 12. Module 12. Module 공정개요 공정개요 13. 13. Module Module 제작 제작 Flow Flow

1. TFT LCD 8. CELL Flow

  • Upload
    others

  • View
    5

  • Download
    0

Embed Size (px)

Citation preview

4. 4. TFT TFT
5. TFT 5. TFT FlowFlow
6. TFT 6. TFT
7. 7. CELL CELL
8. 8. CELL CELL FlowFlow
9. C/F 9. C/F
10. 10. C/F C/F FlowFlow
11. C/F 11. C/F
12. Module 12. Module
13. 13. Module Module FlowFlow
1. 1. TFT LCDTFT LCD
*OverCoat TN Mode ITO, IPS Mode .
) TFT Glass
Gate
- - - - - -
Polarizer

2. 2. TFT LCDTFT LCD
*1 On/Off *2
3. 3. TFT LCDTFT LCD
BLACK MATRIX COLOR

PHOTO ETCH STRIP
TFT SHOPTFT SHOP
4. TFT 4. TFT TFT TFT PROCESS PROCESS
5. TFT 5. TFT Flow Flow
, , DI SHOWER, BRUSH , PARTICLE TFT . BARE GLASS , DEPO PARTICLE PRE-DEPO .

< < >>
Speed 1.2m/min Tact time 48sec
• LD/ULD : : ROBOT • O3Rinse : • R/B : Brush (Roll Brush) Particle • Ultra Sonic : • Bubble Jet : Glass • Air Knife : Air Knife slit Dry Air

55. TFT. TFT Flow Flow SPUTTERING SPUTTERING
RF(DC) POWER PLASMA Ar(He) (-) Ar+ TARGET TARGET PIXEL ITO, S/D Cr GATE AL, Mo TARGET TARGET .
AR+
DC
5. TFT 5. TFT Flow Flow SPUTTER SPUTTER
CASSETTE STAGE
ROBOT
LOAD LOCK
PROCESS CH
LOAD LOCK
PROCESS CH
PROCESS CH
HEAT CHAMBER
• CST Stage :Cassette CTV MGV
• Robot :Glass Robot • L/L Chamber :Process Glass
, Buffer .
• H/Chamber :P/Ch & Pattern .
• P/Chamber : Chamber
5. TFT 5. TFT Flow Flow PECVDPECVD
CHAMBER GAS RF POWER GAS PLASMA . ACTIVE a-si/n+ a-si PASSIVATION siN .
SI
H
RF
5. TFT 5. TFT Flow Flow PECVD PECVD
PROCESS CHAMBER
PROCESS CHAMBER
Pro/ Ch 370-380
• ACLS :Auto Cassette Loading Station • ATM Robot :Glass . • L/L Chamber: Buffer. • T/Ch,V/Rob : GLS
• H/Ch : Chamber • P/Ch : Chamber
* Atmosphere Robot
5. TFT 5. TFT Flow Flow PHOTOPHOTO
PATTERN MASK PR MASK PATTERN . PR PR COATING, MASK EXPOSURE , PR DEVELOP . PARTICLE PATTERN PANEL .
PR
2 Carrier Station
Main Arm
Cooling Unit
5. TFT 5. TFT Flow Flow PHOTO PHOTO

* Rinse Spin Dry
PR
5. TFT 5. TFT Flow Flow ETCH ETCH
PHOTO PATTERN WET ETCH GAS, RF POWER 3 GAS PLASMA DRY ETCH . DRY ETCH CHAMBER .
RF
PLASMA
PROCESS CHAMBER
PROCESS CHAMBER
SENDER/ RECEIVER
PROCESS CHAMBER
LOADLOCK CHAMBER
5. TFT 5. TFT Flow Flow DRY ETCH DRY ETCH
< < DryEtchDryEtch >>

/

•CTV(Clean Transfer Vehicle) Rail •AGV(Auto Guided Vehicle) Magnetic •MGV(Manual Guided Vehicle)
5. TFT 5. TFT Flow Flow WET ETCHWET ETCH
SPIN DRY JEL ROBOT
PORT
< < Chemical Chemical >>
(AL etchant) (75%) (15%) (8%) (ITO etchant) (47.5%) (5%) (Cr etchant) CAN(10%) (23%)
:Tilting Chemical
DI Drain
DI Return
5. TFT 5. TFT Flow Flow STRIPSTRIP
PHOTO PATTERN COATING PR WET ETCH/ DRY ETCH ETCHING PR
< < Stripper >Stripper >
SPIN DRY DI SHOWER
< < STRIP STRIP >>
L/UL
MATERIAL
1. • D.I//
2.BUS (Al)
•Data Line Pixel TFT •Gate
Sputter Al Target Tkns : 2000 Å
3.PHOTO •Gate Coater/ Developer
PR Tkns : 15,000 Å
4.Etch/Strip •Photo PR Open Bus
CFM/Stripper Al Etchant Strip
5.Gate (Mo)
•Hillock Short Sputter Mo Target Tkns : 1000 Å
6.PHOTO •Gate Coater/ Developer
PR Tkns : 15,000 Å
7.Etch/Strip •Photo PR Open Gate
CFM/Stripper Mo Etchant Strip
6. 6. TFT TFT BUS/GATEBUS/GATE
Al
MATERIAL
8.Act (a-si,n+ a-si ,siN)
•SiNx Short •
PECVD SiH4,PH3,NH3 N2,H2 Tkns :6000 Å
9.PHOTO •Active Coater/ Developer
PR Tkns : 15,000 Å
Cl2,SF6,O2 Ash: O2 Strip
11.S/D (Cr)
12.PHOTO •S/D Coater/ Developer
PR Tkns : 15,000 Å
CFM Dry Etch/Asher Stripper
ACT, S/DACT, S/D6. 6. TFT TFT
MATERIAL
14.PAS (SiN)
PECVD SiH4,N2,NH3 Tkns : 2000 Å
15.PHOTO •Pad/Pas Coater/ Developer
PR Tkns : 15,000 Å
Dry Etch/Asher Stripper
SF6,O2,He Strip
17.PXL (ITO)
Sputter ITO Target Tkns : 500 Å
18.PHOTO •ITO Coater/ Developer
PR Tkns : 15,000 Å
CFM/Stripper ITO Echant Strip
PAS, PXLPAS, PXL6. 6. TFT TFT
GATE
GLASS
6. 6. TFT TFT TFT TFT
• n+a-Si Source a-Si a-Si Cr n+a-Si ..
6. 6. TFT TFT TFT TFT
GATE
SPACER
Pi /
(Ag)
Gap
Grinder/Grinder
Auto Probe
Laser Repair
7. Cell 7. Cell CELL CELL PROCESS PROCESS

Seal
(Fluidity) (Long Range Order) ()



15.1” : ML-9707-1
8. 8. CellCell Flow Flow SCRIBE/ SCRIBE/
GLASS
( TFT C/F Glass )
Break Table
Sorting All- Good 1 Panel Glass .
LOADLOAD UNLOADUNLOAD
Robot Robot
125 1kg/cm
•Break Table Align Scribe Break
< < SORTING >SORTING > G, A-F type T type 590*220 S type Scrab
PI PIN-HOLE Glass
8. 8. CellCell Flow Flow
Particle PI
<Air Knife><Air Knife> 1.05kg/cm2
0.9kg/cm2
#1 O3

PI(Polyimide) Mask Glass Rubbing .

Pin Hole
Load / UnloadLoad / Unload
# # PIPI ..
<PI >
* Buffer 1 Load, 2-7

.
C/F Glass
TFT Glass
*Ultra Sonic Clean
CST Load
* Air Particle *1 Rubbing Glass, CST Load
Rubbing Rubbing Particle Polymide .

[[CavitationCavitation Jet]Jet]
L o a d

Gap Seal . , Chamber

Dispenser A unit
• • PI •
< Seal >
•Seal ITO ITO Cr Ag ITO .
IR Seal .
8. 8. CellCell Flow Flow SealSeal
Load/Unload
Robot
Robot


*Buffer
1
17
Cell Gap ,
Glass .
Glass
<<Spacer Spacer >>
• 450 5g Spacer
(CCD)
( ) TFT (Vcom) Ag Dotting.
Load / Unload
[[DottingDotting ‘‘13.313.3X4X4’’ ]]
<<Dispenser Unit>Dispenser Unit> Nozzle N2 2.0-4.0kg/cm2
Table 30-100mm/sec
< < AgAg >> 12.1, 13.3X4, 15.1 10 13.3X2, 13.3X3, 14.1 12 22.0 16 18.1E2 26
2 Glass Align .
GAPGAP Seal Gap .
SealSeal Hot press Gap Seal .
Hot Press(heating)
Hot Press(heating)
<< Hot Press >Hot Press >
130 0.4kg/cm2
< < SealSeal >> 140 60
8. 8. CellCell Flow Flow
CH
•C/F SEAL
•TFT UV
TFT, C/F Cell Cell .
Robot
*OCR

<<Scribe Recipe>Scribe Recipe>
125 1kg/cm
* (Optical Character Reader) Glass ID
• Scribe/Break Table Scribe Breaking Bar .
Cell Chamber
( )
( )
N2Vent 30l/sec
N2 Glass
•CST Cell


(180 )
Dispenser Robot
< < >>
# # # Cell

1 2 3 4 5 6 7 8
Quick Drain Rinse
/ Panel Glass Chip .
8. 8. CellCell Flow Flow PanelPanel
< < Buffer >Buffer >
CSTCST ..
Panel
Gap Panel (Retardation) Gap
no
8. 8. CellCell Flow Flow / / GapGap
< < >>
Grinder
Load
Unload
Line Open Panel Shorting Bar Panel Edge Chip
[ [ Grinder Grinder ]] [ [ Grinder Grinder ]]
Shorting BarShorting Bar
< Shorting Bar >
Spark Tr Pad
Air Pad Chip
Panel R, G, B, Black, Cross Talk Pattern
Data Open : Data Line (R,G,B 1) Pattern
Gate Open : Gate Line
Data-Data Short : Data Line Data Line Short
Data-Gate Short : Data Line Gate Line Cross
Gate-Gate Short : Gate Line Gate Line Short
< < Line Defect >Line Defect >
< < Point Defect >Point Defect > : Black

: PXL





Loading
Auto Probe Panel Laser
< < Line Defect >Line Defect > Data Open : Repair Line
Data-Gate Short : Repair Line Data Line Cutting
Gate-Gate Short : Short Cutting Data-Data Short : Short Cutting Gate Open : Repair
: Laser
Gate Pixel Short
[Data Open] [Gate-Data Short]
Glass

*Black Matrix
Over Coating
C/F C/F PROCESSPROCESS9. 9. C/F C/F

(PARA-A)


46
LoadUnload
C/F Process O3 Brush, DI, , .
< < >>
400rpm
< < >> Tact time 45 1300mm/min 1055mm
CST 1000mm

< < >>
100-600rpm Line Shower
* (+) (-) .
NeutralEtch3 Etch2 Etch1
DMSO
< < >> Tact time 45 1300mm/min 1055mm
CST 1000mm
Black Matrix Black Matrix
R.G.B B/M Sputtering Photo, Etch, Strip .
10. 10. C/F C/F FlowFlow
< < Etch/Strip Etch/Strip >>


Shower Air
Knife Oven
( )
< < >> Tact time 40 Oven 220 Oven 40
Coating, Exposure, Develop C/F Red,Green, Blue 3 .
< < PHOTO PHOTO >>
Coating
Load
Unload
Nozzle
• .

< < >>
* Particle * Color * *
10. 10. C/F C/F FlowFlow
51
* O3 / Brush / DI Rinse /
Pre Depo Clean * PDCLN DI / Brush / Mega *Depo Particle Sonic / O3
B/M * SPUTTER Cr Target ( Cr ) *R,G,B Contrast
Pre Photo Clean * PPCLN DI / Brush / CJ * PR

B/M Photo *B/M Coater / / PR Developer / Oven
B/M *Mask
Etch / Strip *Photo PR Open W/ E , Stripper Cr Etchant / Strip , B/M
B/M *B/M BM
11. 11. C/F C/F / / BMBM
MaterialMaterial
Pre Photo Clean * PPCLN DI / Brush / CJ * CFPR
RED Photo *RED Coater / / Oven RED / Developer
RED *C/F (Mask)
GREEN Photo *GREEN Coater / / Oven GREEN / Developer
G *C/F (Mask)
BLUE Photo *BLUE Coater / / Oven BLUE / Developer
B *C/F (Mask)
* & Repair Repair
COLORCOLOR11. 11. C/F C/F
MaterialMaterial
Pre Depo Clean * PDCLN DI / Brush / O3 *Depo Particle / Mega Sonic
ITO *TFT SPUTTER ITO Target
*C/F
* Dry Cleaner
MaterialMaterial MaterialMaterial
ITOITO//11. 11. C/F C/F
12. 12. MODULEMODULE MODULE MODULE PROCESSPROCESS
Screen Print
••
Surface Mount Technology SMD(Surface Mount Device)
•• SMTSMT
• Cost Down . • . • , , , . • . • .
•• SMTSMT
. . Land
Cost
, , . ,
13. 13. ModuleModule FlowFlow SMTSMT
• Load PCB UNIT
< Flow >
PCB Align() PCB Arm Printer Load
13. 13. ModuleModule FlowFlow SMTSMT
Screen Printer



Visual TesterRouterWelding
Load Unload
Align.
< Flow >
Back-up Pin/ Jig Setting Metal Mask Setting Squeegee
Cream Solder
13. 13. ModuleModule FlowFlow SMTSMT
Bare PCB
Metal Mask
: , , Flux : , , ,
< < SQUEEGEE >SQUEEGEE >
• : Metal Mask : Solder Cream . :
• : Metal Mask .


< < Metal Mask >Metal Mask >
• PCB Land S/C Pattern Mask • : Stainless, Ni • : Etching, Laser, Additive
, . • 0.1sec/ chip .
< Flow >
Cassette feeder Setting Setting Cassette Setting
•• Oven , Cream solder PCB
< Flow >
< < >>
• : 150 (30 -60) . • Pre Heat : 150 (45-75) Adietic Acid . • : 200 (20-40) Powder . • Reflow : 225 (10-20) . • : (60-120) Flux Coating.
13. 13. ModuleModule FlowFlow SMTSMT
• RouterRouter Thill PCB . ( Particle Air Gun(Brush) Vacuum Clear
PCB . )
•Unload PCB PANEL Glass Cassette .
•Visual Tester .
< Flow >
• , . Print PCB Repair Zone
< Flow >
13. 13. ModuleModule FlowFlow SMTSMT
XY Table
< < Flow >Flow >
••Repair Zone Repair Zone X-ray
< < Flow >Flow >
13. 13. ModuleModule FlowFlow SMTSMT
< Flow >
FPC Film FPC hole PCB hole
••WeldingWelding FPC(Flexible Printed Circuit)
• Input Source Gate Source FPC, .
• Oscilloscope , .
• (Panel)
Cell Panel Knife, Brush, DI Shower, Panel Particle(Glass Chip, , )
13. 13. ModuleModule FlowFlow TABTAB
Pol Tab

< < PolPol >>
• Display Pol .
••
Panel , Film Panel /
13. 13. ModuleModule FlowFlow TABTAB
Film

Panel
PVA (Poly Vinyl Alcohol) PVA (Poly Vinyl Alcohol)
TACTAC AdhesiveAdhesive Panel SPV (Surface Protective Vinyl)SPV (Surface Protective Vinyl) Film
< < NPF POL(NPF POL()) >>
••TabTab
Pol Drive IC ACF(Anistopic Conductive Film) TCP Film Panel Pad
< < Flow > Flow >
TCP ACF
••TAB TAB
TAB Bonding Zone Module Line
< < >>
•Line Defect Short / Open •Pol , , Tray • Cell / TFT •Pol •TAB Misalign Tab Bonding Tab Pad Glass Pad Align
Line Defect
••( ( Auto Clave)Auto Clave)
Pol Pol Glass Pol
• Chamber Heat Transfer.

••
PCB Bonding LCM(Liquid Crystal Module) Display
< < >>
•PCB Bonding Signal Display / •SMT Display •Flicker
13. 13. ModuleModule FlowFlow TABTAB
••PCBPCB BondingBonding
Source Gate , Drive Ass’y ACF PCB
Panel
Panel
ACF
TCP
B/L Board Ass’y B/L .
•• Back Light Back Light
B/L Board Ass’y . Back Back LightLight
PCBPCB
FPCFPC
TABTAB
B/L
B/L
< Back Light >
6/7
(1) (1) LampLamp Inverter CCFL(Cold Cathod Fluorescent Lamp)
. HCFL(Hot Cathod Fluorescent Lamp) . (2) (2) Lamp housingLamp housing
Lamp . ,, Film Ag Film .
(3) (3) Light guide(Light guide()) (PMMA) Injection Molding Casting , Pattern(Dot,Shibo,V-cut) .
(4) (4) REFLECTOR(REFLECTOR()) (PET) .
(5) (5) Diffuser(Diffuser()) (PET) .
(6) (6) Bottom Prism(Bottom Prism()) (PET) Prism . 3M BEFII 1 Diffuser 1.55 .
(7) (7) Top Prism(Top Prism()) Bottom Prism Bottom Prism 1.33 . Prism Cross X Y .
(8) (8) Diffuser(ProtectorDiffuser(Protector, , )) (4) Diffuser Prism Film . Diffuser Top Prism Prism .
(9) (9) LCD PanelLCD Panel LCD Panel ,Color Filter ,Polarizer Lamp , 8% Panel .
(10) (10) Monitor Diffuser 2~3 Diffuser DBEF .
13. 13. ModuleModule FlowFlow
•• ((Soldering)Soldering)
< < >>
• Soldering . • PCB Flux FPC Flux .
•• Top CaseTop Case
Top Case
• FPC(Flexible Printed Circuit) Soldering Source PCB Gate PCB Flux .
Top CaseTop Case
•• ((ScrewScrew ))
< < MODELMODEL >>
••LM151X2 2LM151X2 2 ••LM133X3 2LM133X3 2 ••LM121S1 2LM121S1 2 ••LM121S2 2LM121S2 2 ••LM121SB 3 LM121SB 3
• Bowl Feeder Screw Screw Delay
•• ((Forming)Forming)
Top Case Panel .
• Forming Source Gate . , Panel B/L .
• Soldering • 45 20 .
13. 13. ModuleModule FlowFlow
• Aging
( 50, 4) .
[ Aging Chamber ] [ Panel Assembly ]
••
2 Pattern Panel .
•• ( . 20EA/ Sample .)
OQC .
••
OQC .
•• / T/C LCM Tape
LCM Label , POLFilm Shield Cover
••
MNT B/T Source Gate PCB
13. 13. ModuleModule FlowFlow