Dr. (Sam) Yun Fu Chan

(Sam) Yun Fu Chan

Senior Scientist – Optoelectronics, Centre for Process Innovation
Limited (CPI)

Presentation Title:

Advanced Laser Ablation and Singulation of Large Area Electronic Devices

Time: TBD

Presentation Abstract:

(Sam) Yun Fu Chan (1*) , Sean Bolton (1) , John McLean (1) , Philip Hollis (1) , Pavel Kudlacek (2) , Claudia Keibler-Willner (3) and Markus Tuomikoski (4)
(1) Centre for Process Innovation Ltd – National Printable Electronics Centre, The Neville Hamlin Building, Thomas Wright Way, NETPark, Sedgfield, Stockton-on-Tees, UK
(2) Holst Centre, HTC 31, 5656AE, Eindhoven, The Netherlands
(3) Fraunhofer FEP, Maria-Reiche-Str. 2, D-01109 Dresden, Germany 4VTT, Kaitoväylä 1, 90570 Oulu, Finland

Horizon_2020 – European funded project called PI-SCALE aims to create an open access pilot line service offering world class capability in customised flexible organic light-emitting diodes (f-OLEDs) in order to accelerate the commercial adoption of this technology. The project brings together four OLED technology leaders from Europe and state-of-the-art infrastructure for f-OLED fabrication, and enables companies quickly and cost effectively test and scale up their f-OLED lighting or signage concepts and bring them to a level where they are ready to be
transferred to a mass production facility 1 .
OLEDs on flexible plastic and/or flexible thin glass on Sheet-to-Sheet (S2S) and
Roll-to-Roll (R2R) have successfully been manufactured via thermal evaporation and/or solution processes. This includes world largest R2R f-OLEDs on flexible plastic and flexible thin glass which were demonstrated at two OLED lighting workshop 1 (Figures_1a).
The paper aims to introduce a unique Femtosecond laser tool set up at CPI capable of advanced laser ablation which allows digital laser patterning reducing photolithographic steps.Thus reducing manufacturing time and costs, and laser singulation on R2R f-OLED which is an economical cutting method with high reliability, high throughput and high yield. R2R f-OLED on thin glass has successfully been singulated and in operation (Figure_1b), the device SEM
cross-sectioned image (Figure_1c) shown excellent “clean cut” and no “interface smearing”,thus the integrity of the thin glass and OLED thin films were remain intact. Moreover, laser ablation process development is currently being undertaken on metallised thin-film deposited on barrier plastic and via-hole formation on flexible thin glass.


Dr. (Sam) Yun Fu Chan (PhD in Chemistry, University of Reading). Senior Scientist –
Optoelectronics at the Centre of Process Innovation Ltd (CPI) (2010 to date), he has over twelve (12x) years of industrial experience in Optoelectronics research including OLEDs, OPVs, LECs, OTFTs and Battery since 2005, previously at Polymertronics Ltd (Materials Chemist, 2008 to 2010), OLED-T-Ltd (Synthetic Inorganic Chemist, 2006 to 2008),University of Reading (Post-doctoral Researcher, 2005 to 2006). Since joining CPI in 2010,he has participated twelve (12x) UK-funded and two (2x) European projects, experience in BD activities – consortium building, submitting and winning Innovate UK (IUK) bids, and managed technical teams and tehnical lead in projects as well as Project Manager in commercial and IUK projects. He is author of 4 scientific papers, 13 international conference papers and is author of 4 patents.

Company Profile:

At CPI we work with our partners to develop products and processes that enhance health and well-being, protect and improve our environment and increase productivity across industries. We support the development of next-generation manufacturing organisations which require highly-skilled jobs, and will result in sustained economic growth for the UK.
Our partners operate in Healthcare, Food & Agriculture, FMCG,Electronics, Energy, Transportation and Construction. We support such a broad-base of industries through our unique innovation Company Logo processes, together with our platform of technological expertise.Such that enables our partners to get more products to market faster, and at a lower overall cost.