Manuela Junghähnel Processing on FlexibleProcessing Glass – on Challengesultra and Opportunities-thin flexible Glass Dr Manuela Junghaehnel
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© Fraunhofer FEP Content
Introduction Applications fields for ultra-thin flexible glass Properties of ultra-thin flexible glass Advanced Processing of UTG S2S and R2R Examples for functional layers/ layer stacks Summary
2 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Introduction
glass
flat curved flexible
thickness > 1 mm thickness 1 … 0.2 mm thickness < 0.2 mm
3 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Diversity of flexible glass in FLEX Applications
Smart curved Surfaces Display Wearables Sensors Interior Cover glass Smart Watch Fingerprint sensors Wall panels Smart Phones Smart Glasses Antennas Laminated panels Tablets Fitness armband Label Room dividers TV Move tracker Bio-sensor Railings Head-up Automotive High-Tec Optics Mirrors Micro lenses Lighting Filter optics Displays Micro displays Electronics Micro cameras Interior
Lighting Photovoltaics OLED Thin film solar cells Lighting panels Organic solar cells
Smart Windows Energy Storage Architectural glazing Thin-film batteries Electrochromics Super capacitors Thermochromics Micro batteries
4 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Application example: Display and Cover
Glass will find in new form-factor devices due to its superior application performance shows superior haptics and customer experience with high scratch resistance UTG allows highest optical quality, longer-living and reliable OLED displays due to high temperature resistance during processing and unsurpassed barrier properties
Cover Glass – ultra-thin glass
Touch Sensor
UTG Substrate Active matrix OLED Layers Glue UTG Barrier Courtesy of SCHOTT AG 5 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP World thinnest glass interposer demonstrator … based on SCHOTT‘s 30 µm ultra-thin glass Cooperation SCHOTT AG – Georgiatech Industry Consortium
30 µm Thin Glass Panel Interposer
Courtesy of SCHOTT AG 6 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Properties of ultra-thin flexible glass
Glass thickness < 200 µm flexible glass ➢ Ultra-thin ➢ High transparency ➢ Superior surface quality ➢ Perfect water vapour and oxygen hermeticity ➢ High-temperature processing ➢ Low surface roughness – aesthetic appeal
7 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Properties of ultra-thin flexible glass
Main flexible glass suppliers
➢ Nippon Electric Glass Co., Ltd.: G-Leaf™
➢ Asahi Glass Co., Ltd.: SPOOL™
➢ Corning Inc.: Corning® Willow® Glass
➢ Schott AG: AF 32 eco , D 263 eco, AS 87 eco
8 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Properties of diverse UTGs – thermal properties
Corning® NEG AGC Schott Schott Schott Willow® Glass G-LeafTM SpoolTM AF 32® eco D 263® T eco AS 87® eco
Density 2.3 - 2.5 2.46 2.51 2.43 2.51 2.46 [g/cm³]
CTE [K-1] 3 - 5 x 10-6 3.8 x 10-6 3.8 x 10-6 3.2 x 10-6 7.2 x 10-6 8.7 x 10-6
Tg [°C] 717 557 621
Strain point 650 - 700 650 670 594 [°C]
Annealing 700 - 750 705 720 633 point [°C]
Softening 940 950 872 point [°C]
Thicknesses 200; 100; (50) 100; 70; 50; 30 200; 100; 50 100; 70; 50; 25 100; 70; 50; 25 100, 145, 175, [µm] 210, 250, 330, 350, 400 Glass width of max. 1.3 m 0.6 m (1 m) max. 0.5 m max. 0.5 m rectangular: rolls 5~580 round: Ø 50~410 ▪ Main of the data are coming from fact sheets 9 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Properties of diverse UTGs – mechanical properties
Corning® NEG AGC Schott Schott Schott Willow® Glass G-LeafTM SpoolTM AF 32® eco D 263® T eco AS 87® eco
Young's 70 - 80 73 77 66 72,9 73.3 modulus [GPa] Poisson 0.20 - 0.25 0.2 0.22 0.235 0.208 0.216 Ratio Hardness 555 590 500 (560*)
Surface Ra < 0.5 nm Ra < 0.2 nm < 1 nm < 1 nm < 0.5 roughness RMS Total ± 10% ≤ 5 µm ≤ 5 µm ≤ 10 µm thickness variation Thickness ± 10 µm ± 10 µm ± 10 µm ± 10 µm tolerance
*) hardness measured at chemical ▪ Main of the data are coming from fact sheets strengthened condition 10 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Manufacturing Methods
Down-Draw Process Overflow Process
even overflows molten glass fromOverflowboth sides on both sidesflow of molten glass
roller treams fuse at annealing the bottom furnace of the wedgs
roller direction in which it is drawn glass ribbon www.schott.com www.neg.co.jp 11 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP The fragility of ultra-thin flexible glass
12 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Challenges for processing on ultra-thin flexible glass
Main challenges: Bending, the combination of stress Improvement of reliability Reduction of bending radius key is thickness reduction Management of loads on the glass Stress control: tension, compression Process procedure: substrate handling, transport, cleaning, cutting, coatings
13 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Properties of ultra-thin flexible glass – bending of glass
Calculation of bending stress 푑 s … bending stress 퐸 ∙ 2 E … Young's modulus 휎 = d … thickness substrate 푟 r … bending radius
120 120 100 µm PET Melinex 400 @ RT 100 100 100 µm flexible glass
80 80
60 0.5 mm 60
40 0.2 mm 40 0.1 mm
20 0.05 mm 20
bending stress [MPa] stress bending bending stress [MPa] stress bending 0.03 mm 0 0 0 10 20 30 40 50 0 5 10 15 20 bending radius [cm] bending radius [cm]
14 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Properties of ultra-thin flexible glass
Surface roughness Dimension stability
100 µm flexible glass 100 µm PET web
Tmax during deposition < 50°C!!!
TiO2, 30 nm
SiO2 , 300 … 500 nm
TiO2, 30 nm Flexible glass or PET web
15 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Properties of ultra-thin flexible glass - transmittance
100
80
60
40
transmittance [%] transmittance AF32, 50 µm 20 AF32, 100 µm D263T, 50 µm D263T, 100 µm 0 200 250 300 350 400 wave length [nm] Schott Product AF32eco D263Teco
CTE (20 - 300 °C) x10-6/°K 3.2 7.2 Tg [°C] 715 557 Alkaline Content no yes
16 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Mechanical Characterization of flexible glass *) theoretical bending radius of the surface strength neglecting edge Surface Fracture Strength flaws (@100 µm glass thickness)
Ball on Ring test: r*theor.~ 0.9 mm
Stress Calculation
r*theor.~ 1.6 mm
The surface strength of all UTG-types is much higher than the edge strength Differences of the surface strength between the sample types of appr. 65% A theoretical max bending radius of 0.9-1.6 mm of the surface can be assumed. 17 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Properties of ultra-thin flexible glass Thin Film Stress Measurement
150 nm thick ITO on flexible glass Measurement device: Profilometer - Ambios XP-Plus 200 Stylus calculation by Stoney equation:
150 dglass = 200 µm
dglass = 100 µm 125 2 1 퐸 푡푠 휎 = · · 100 6푅 1 − 휐 푡푓 75
flatness[µm] 50 Stress Maximum bow Glass Thickness [µm] [MPa] [µm] 25 100 254 123 0 200 469 49 0 1 2 3 4 5 scan length [cm] 18 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Process capabilities on flexible glass @ Fraunhofer FEP
sheet-to-sheet processes roll-to-roll processes
films
-
Inorganic thin Inorganic Organic devicesOrganic
19 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP S2S in-line processing of ultra-thin flexible glass
▪ PVD and PECVD ▪ Originally for rigid substrates (glass, plastic, metals) ▪ Suitable for flexible glass max. 600 x 600 mm² ▪ Thickness ≤ 200 µm ▪ Cathode length 750 mm and 900 mm ▪ DC and PMS sputtering (standard methods) ▪ Deposition @ RT, ▪ heating ▪ Post-annealing by FLA
20 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP S2S Processing of thin-films ultra-thin flexible glass
© 2016 Fraunhofer FEP © 2016 Fraunhofer FEP 600 x 600 mm² substrate on S2S carrier ITO coated 600 x 600 mm² substrate with ≤ 200 µm Corning® Willow® Glass ≤ 200 µm Corning® Willow® Glass as deposited state before annealing 21 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP R2R processing of inorganic films on UTG VON ARDENNE FOSA LabX – R2R vacuum coating of flexible glass ▪ R2R vacuum coater: 2, 4 or 8 process stations + pre-treatment ▪ Substrate speed: up to 4 m/min ▪ Substrate width : 200 - 1200 mm, Substrate thickness: 50 - 100 µm ▪ Coating temperature: 350 °C ▪ Rollers touching substrate back side only ▪ Minimized particle load on substrate
▪ Application examples ▪ ITO for OLED, Invisible ITO for Touch Screen ▪ IMI, AR © VON ARDENNE Corporate Archive
22 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP BMBF – KONFEKT (FKZ 13N13818) R2R processing of inorganic films on UTG FOSA LabX 330 Glass
23 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP BMBF – KONFEKT (FKZ 13N13818) OLED on Ultra Thin Glass @ Fraunhofer FEP
2 x 100 µm UTG Active area: 62 cm² Module size: 18.3 x 66.3 cm²
Performance @ 1000 cd/m² :
current voltage lum.efficacy Color coordinates CCT CRI
[mA] [V] [lm/W] C.I.E. x C.I.E. y [K] [%]
80 8.19 32.4 0.386 0.382 3895 83 24 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP R2R processing of organic LED devices on UTG
Exhibition at IDW15 Japan, Exhibition at ICCG, Germany December 2015 June 2016
Successful demonstration of 25 x 10 cm² OLED on flexible glass Devices without dark spot, encapsulated with flexible glass. FEP-Collaboration with Nippon Electric Glass Co., Ltd (NEG)
25 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Examples for functional layers and layer stacks
▪ ITO coatings ▪ AR coatings ▪ Refinements of TCOs
26 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP TCOs for transparent flexible electrodes – ITO
polymers 250 nm
flexible glass Layer thickness thickness ITO Layer
27 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP ITO on flexible glass – stress management
Main factors: 10 mm ➢ Process pressure ➢ Kind of powering ➢ Reactive working point ➢ Layer Thickness ITO on 100 µm UTG ITO 1000 nm ➢ Process temperature ➢ …
layer ITO on 10 mm 50 µm UTG ITO 750 nm
28 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP ITO on ultra-thin flexible glass – stress management
ITO thin-films: ➢ d ~ 1000 nm ➢ r ~ 2…5∙10-3 Ωcm
29 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP ITO on ultra-thin flexible glass – stress management
ITO thin-films: ➢ d ~ 1000 nm ➢ r ~ 2…5∙10-3 Ωcm
process pressure
0.3 Pa 0.6 Pa 0.9 Pa
30 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP ITO on ultra-thin flexible glass – mechanical properties
Influence of the oxygen content in the sputtering gas on the hardness and radius of curvature.
▪ Thickness ultra-thin flexible glass 100 µm ▪ Thickness ITO ~ 150 nm ▪ Variation of oxygen gas content in sputtering gas 0…4.8% 31 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP ITO on ultra-thin flexible glass – mechanical properties
Curvature measurement (WLI) and stress after ITO deposition 2000
O2/Ar+O2 concentration
1500 10 10 Surface at WP 0.3 Pa 1000 Flow O2 = 0 sccm
5 5 4 4 500
2 2 CompressiveStress [MPa] 0 0 0 0 Surface at WP 0.3 Pa 0 Flow O2 = 4 sccm 0.3 Pa 0.9 Pa 32 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP ITO on ultra-thin flexible glass – mechanical properties Influence of thermal annealing
Estimated influence of the post-annealing to the fracture strength
A further reduction (~55%) of the fracture strength
. Characteristic Fracture Stress [MPa] Stress Fracture Characteristic Weibull Modulus
*) theoretical bending radius of the surface strength neglecting edge flaws (@100 µm glass thickness)
33 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP “hot” ITO films on ultra-thin flexible glass
3 mm thick low iron glass 100 µm thick flexible glass
Process temperature [°C] RT 400°C RT 400°C
Film thickness [nm] 174 172 174 173 Pretreatment [°C] RT 450 RT 450 Sheet resistance [Ω] 37.7 8.5 29.3 9.3
Resistivity [Ω cm] 6.6 x 10-4 1.5 x 10-4 5.0 x 10-4 1.6 x 10-4
TVIS [%] 76.9 85.7 80.9 86.9 k @ 550 nm 0.015 0.005 0.015 0.009 n @ 550 nm 2.04 1.90 2.03 1.84 T_L* 90.3 94.2 92.1 94.7 T_a* 3.68 0.19 0.45 -0.08 T_b* 6.74 6.58 5.85 7.22
34 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Anti-reflecting layer stack
SiO2, 86.7 nm Bipolar square wave mode TiO2, 103.5 nm and DC-DC mode SiO2, 33.4 nm
TiO2, 12.5 nm Flexible glass 100 µm
Mechanical film stress
ProcessProcess StressStress [MPa] [MPa] TiO2 SiO -305 SiO22 -305
TiO , DC-DC mode +155 TiO22, DC-DC mode +155
TiO , square wave mode -93 TiO22, square wave mode -93
AR, with TiO in DC-DC -75 AR, with TiO22 in DC-DC -75
AR, with TiO in square wave mode -175 AR, with TiO22in square wave mode -175 M. Junghähnel et al., SVC 2014, Proceedings, Ref.-Id.: L-15 35 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Example – AR Coatings on Corning® Willow® Glass
Only one side is coated!!!
TiO2 – bipolar square wave mode TiO2 – DC-DC mode
100 mm
film stress layer stack: -175 MPa -75 MPa
M. Junghähnel et al., SVC 2014, Proceedings, Ref.-Id.: L-15 36 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Example – AR Coatings on ultra-thin flexible Glass
Anti-reflective coating on 50 µm flexible glass
37 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP FOSA LabX 330 Glass – machine scheme
38 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP BMBF – KONFEKT (FKZ 13N13818) FOSA LabX 330 Glass – Example AR coating 1st pass
Both stations „on“ In-line monitoring) Adjustment of the rate ratio to coat the first two layers in one run
No monitoring – film thickness to low
NbOx (Nb2O5) Si (SiO2)
39 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP BMBF – KONFEKT (FKZ 13N13818) FOSA LabX 330 Glass – Example AR coating 2nd pass
Nb O „on“; SiO „off“ In-line 2 5 2 monitoring) Same power than during the 1st pass
Higher band speed
Monitoring „off“
NbOx (Nb2O5) Si (SiO2)
40 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP BMBF – KONFEKT (FKZ 13N13818) FOSA LabX 330 Glass – Example AR coating 3rd pass
Both stations „on““ In-line monitoring) Same rate ratio like 1st pass
lower band speed
Monitoring „on“
NbOx (Nb2O5) Si (SiO2)
41 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP BMBF – KONFEKT (FKZ 13N13818) FOSA LabX 330 Glass – Example AR coating
100 100 µm Schott glass
Single side coated 90
T 80 R
20
10 Transmission/Reflection[%]
0 400 500 600 700 800 Wavelength [nm]
42 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP BMBF – KONFEKT (FKZ 13N13818) FOSA LabX 330 Glass – Example “hot” ITO coating
43 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP BMBF – KONFEKT (FKZ 13N13818) S2S technologies for PVD of ultra-thin flexible glass Example “hot” ITO 150 nm ITO 100 µm Corning® Willow® Glass Substrate size: 500 x 500 mm² Thermal annealing in Vacuum @ 400°C after coating ITO properties: process time of Rsq. ~ 12 Ω 7…15 minutes
TVIS ~ 87.3% up to 1 hour! r ~ 1.7·10-4 Ω∙cm
Source: M. Junghähnel et al.; 59th SVC 2016 44 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Processes induced by short-term thermal post-annealing
structural changes From amorphous state Phase crystallization Phase transformation Recrystallization Formation of nanocrystals Grain size enlargement Fast segregation Dopant activation Doping profiles Localized thermal processing
45 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Refinement of thin-films by Flash Lamp Annealing – FLA
Continuous Xe spectrum of flash lamps 46 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Dynamic FLA for in-line S2S processes (and R2R)
Main process parameters: Energy density Pulse duration time Repetition rate Substrate speed
47 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Dynamic FLA for in-line S2S processes (and R2R)
ILA 900 in-line PVD coater with in-line FLA tool 48 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Dynamic FLA of ITO on ultra-thin flexible glass
as deposited state: Rsq. ~ 55 Ω after FLA: Rsq. ~ 16 Ω
Tvis ~ 69.4% Tvis ~ 79.1%
© 2016 Fraunhofer FEP © 2016 Fraunhofer FEP
M. Junghähnel et al., SVC 2016, Proceedings, Ref.-Id.: L-7 49 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Summary
Flexible glass processing brings a lot sheets of bended ultra-thin glass with a thickness of 50 µm of challenges but also a lot of opportunities Development of new applications High performance, new options Up scaling of processes is possible PVD processes S2S and R2R are available
Main importance: thin-film stress management
50 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Flexible Glass: Enabling Thin, Lightweight, and Flexible Electronics
Edited by Sean Garner
ISBN-13: 978-1118946367 Publisher: Wiley-Scrivener; 1 edition (August 21, 2017)
51 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Acknowledgements:
CORNING INC.
SCHOTT AG
NEG Co., Ltd
vonARDENNE GmbH
Fraunhofer IMWS – Falk Naumann, Georg Lorenz
Fraunhofer FEP – Jasper Westphalen, Thomas Preußner, Matthias Fahland
Parts of the presentation were funded by the internal Fraunhofer project ZUG4Flex and by BMBF project KONFEKT BMBF – KONFEKT (FKZ 13N13818)
52 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Thank you very much for your attention!
CONTACT
Fraunhofer FEP Dr. Manuela Junghähnel Coordinator Thin-Glass Activities
[email protected] Winterbergstr. 28 | 01277 Dresden Germany Phone +49 351 2586-128
VISIT US @ BOOTH Fraunhofer FEP
VISIT: Corning Mini-Workshop Flexible Glas
53 Short course: Processing on ultra-thin flexible Glass | ICCG 12 Manuela Junghähnel, 11 June 2018 © Fraunhofer FEP Mini-Workshop: R2R Coating of Flexible Glass
Speaker: Sue C. Lewis | Corning Incorporated | Willow® Glass Product Engineering Manager
Summary: A glass substrate is often the preferred solution for many applications. It offers excellent optical and surface properties, dimensional and thermal stability and hermeticity. Corning® Willow® Glass offers all the same advantages as other glass substrates in a thin and light, flexible form that can take advantage of the manufacturing advantages of R2R processing.
This workshop will demonstrate scalable R2R coating processes on flexible glass, discuss the properties of the glass substrate that make this possible, and the advantages of using a flexible glass substrate.
Time: Wednesday 13:25 – 13:50 Place: Congress Center Würzburg, Room 7-9
© Fraunhofer