TY - GEN
T1 - Development of phosphor coating and patterning process on light emitting diodes using optofluidic maskless lithography
AU - Chung, Su Eun
AU - Jang, Jisung
AU - Lee, Seung Ah
AU - Lee, Hosuk
AU - Kwon, Sunghoon
PY - 2009
Y1 - 2009
N2 - We demonstrate conformal phosphor coating and patterning methods on light emitting diodes (LEDs) using image processing based optofluidic maskless lithography (IP-OFML) system in microfluidic channels. IP-OFML allows a real-time detection and dynamic mask generation for packaging of randomly dispersed microchips. Our system detects each chip by considering rotation of the chip through image processing regardless of their arrangement error. Therefore, it precisely packages the chip making conformal polymer layer. With the system, we present multilayer coating, selective layer packaging of silicon microchips, and conformal yellow phosphor coating on blue LED for uniform white light illumination considering top contacts opening.
AB - We demonstrate conformal phosphor coating and patterning methods on light emitting diodes (LEDs) using image processing based optofluidic maskless lithography (IP-OFML) system in microfluidic channels. IP-OFML allows a real-time detection and dynamic mask generation for packaging of randomly dispersed microchips. Our system detects each chip by considering rotation of the chip through image processing regardless of their arrangement error. Therefore, it precisely packages the chip making conformal polymer layer. With the system, we present multilayer coating, selective layer packaging of silicon microchips, and conformal yellow phosphor coating on blue LED for uniform white light illumination considering top contacts opening.
UR - http://www.scopus.com/inward/record.url?scp=84901804982&partnerID=8YFLogxK
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M3 - Conference contribution
AN - SCOPUS:84901804982
SN - 9780979806421
T3 - Proceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences
SP - 1692
EP - 1694
BT - Proceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PB - Chemical and Biological Microsystems Society
T2 - 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009
Y2 - 1 November 2009 through 5 November 2009
ER -