運用紫外光固化滾對板轉印技術開發金屬網格薄膜 Development of metal mesh film using Roll-to-sheet UV embossing technology Reporter :Cheng-Hsin Chuang (莊承鑫) Department of Mechanical Engineering & Institute of Nanotechnology Southern Taiwan University of Science and Technology Date ：2015-05-13

Outline Motivation Metal Mesh technology The literature review of Metal mesh Photolithography Printed methods Experimental setup Fabrication of metal mesh film Results and Discussion Fabrication of metal mesh film on PET Fabrication of metal mesh film on Glass Conclusions

Outline Motivation Metal Mesh technology The literature review of Metal mesh Photolithography Printed methods Experimental setup Fabrication of metal mesh film Results and Discussion Fabrication of metal mesh film on PET Fabrication of metal mesh film on Glass Conclusions

Motivation Utilization of the metal mesh will increase year by year Market Trends towards in the future： Large area Flexible/Thin High Sensitivity low-cost

Outline Motivation Metal Mesh technology The literature review of Metal mesh Photolithography Printed methods Experimental setup Fabrication of metal mesh film Results and Discussion Fabrication of metal mesh film on PET Fabrication of metal mesh film on Glass Conclusions

Metal Mesh technology Photolithography Reduction methods Hybrid Printed Printed methods Substrate Fabrication of the metal layer Photolithography Substrate Coating silver bromide layer Exposure reduction Substrate Fabrication of the micro trench Scraping of nano-silver paste Substrate Printing Process Currently the touch panel industry is produced by the conductive electrode manufacturing process that　can be divided into two parts: (1)ITO glass substrate photolithography processes, (2) Screen printing process.

Outline Motivation Metal Mesh technology The literature review of Metal mesh Photolithography Printed methods Experimental setup Fabrication of metal mesh film Results and Discussion Fabrication of metal mesh film on PET Fabrication of metal mesh film on Glass Conclusions

Metal Mesh will be substituted for indium tin oxide (ITO) The literature review of Metal mesh Photolithography One Glass Solution (來源：達宏科技先進股份有限公司)。 Indium tin oxide (ITO) is the conductor material of choice for transparent electrodes due to its high optoelectronic performance. However, two factors have recently combined to encourage the development of alternative materials and structures: the increasing cost of ITO caused by the scarcity of indium and dissatisfied response time for large size display . Metal Mesh will be substituted for indium tin oxide (ITO)

Printed methods Printing Process Plate Printing Plateless Printing Flexographic printing Gravure printing Screen Printing Rotary screen Printing Inkjet Printing The advantage of these technologies can be quickly produced and material saving, but still can not be fabrication of fine line width (<5 μm)

Outline Motivation Metal Mesh technology The literature review of Metal mesh Photolithography Printed methods Experimental setup Fabrication of metal mesh film Results and Discussion Fabrication of metal mesh film on PET Fabrication of metal mesh film on Glass Conclusions

Experimental setup Fabrication of metal mesh film Settable parameters： Speed：1 ~ 100 mm/s Angle：10° ~ 90° Pressure：0.2~0.8 MPa

Thanks for Your Attention !!! E-mail: chchuang@mail.stust.edu.tw