![]() Mr Dong-Kwon Choi, Engineer
SungAn Machinery Co Ltd
Korea
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Downloads![]() ![]() If you already have access, please [Login] Access is available via an IDTechEx Market Intelligence Subscription Presentation SummaryThe developed R2R based cylindrical bed screen printing system is introduced. Using the stop and repeat sequence control system with motorized accumulators based on linear stages and impression roll, the printing and scrapping motion sequence is done while the flexible substrate is continuously un-winded and re-winded. To minimize the printed pattern position error due to a screen deformation with relative high clearance between screen and substrate arisen in general sheet based flat screen printing, clearance-less printing system with complicate cylinder and linear motion sequence is developed and fabricated. In addition, for the multi-layer printing process, virtual key-key align control algorithm and motion system are developed and fabricated with vision cameras and UVW linear stage units. The performance of developed R2R flat screen printing system is investigated with measuring the width of printed line, position error deviation and multi-layer align deviation with silver inks. In final the digitizer for the touch sensor and NFC tags are manufactured by the developed printing machine. Company Profile (Sung An Machinery Co Ltd)![]() Sung An Machinery, better known as SAM, manufactures Extrusion Coating and Laminating Machines, Solution Coating and Laminating Machines, Rotogravure Printing Machines, and In-Line Flexographic Printing Machines. SAM opened its Printed Electronics Laboratory (SPEL), located at the company's headquarters in Korea, to meet increasing requests for new product development. The laboratory houses four (4) custom coating lines specializing in the development of process and equipment for the printed electronics industry, including OPV solar cell, OLED, lighting and others. Visit http://www.sungan.net to learn more about SPEL. |