박형원 교수

We study the effective resist dispensing in continuous Roll-to-Roll (R2R) nanoimprinting system by using a simple and controlled airbrush coating method. Compared to common spin-coating or drop-casting, airbrushing can better afford the continuous coating operation required in a R2R nanoimprinting system with controlled thickness and uniformity. We use a UV-curable epoxysilsesquioxane (SSQ) and propylene glycol methyl ether acetate (PGMEA) as a concentration control agent, which are airbrushed f

In this paper, we propose a novel double gate vertical channel tunneling field effect transistor (DVTFET) with a dielectric sidewall and optimization characteristics. The dielectric sidewall is applied to the gate region to reduced ambipolar voltage (Vamb) and double gate structure is applied to improve on-current (ION) and subthreshold swing (SS). We discussed the fin width (WS), body doping concentration, sidewall width (Wside), drain and gate underlap distance (Xd), source doping distance (XS

We demonstrate a facile one-step fabrication offlexible ridge waveguides by using the nanochannelguidedlithography (NCL) that enables continuous extrusion of a polymer that forms waveguiding coreridge on an undercladding polymer substrate. NCL utilizes a well-cleaved mold edge with microtrenchpatterns to slide continuously over a UV-curable liquid resin-coated substrate under conformal contact,where the resin and substrate can be chosen for suitable waveguide core and undercladding materials. Th