Maskless writing of microfluidics: Rapid prototyping of 3D microfluidics using scratch on a polymer substrate Using thermally printed transparency as photomasks to generate microfluidic structures in PDMS material PDMS-based microfluidic device with multi-height structures fabricated by single-step photolithography using printed circuit board as masters Fabrication of poly (dimethylsiloxane) microfluidic system based on masters directly printed with an office laser printer Rapid prototyping of microfluidic systems using a laser-patterned tape Patterned Paper as a Low-Cost, Flexible Substrate for Rapid Prototyping of PDMS Microdevices via “Liquid Molding” A simple photolithography method for microfluidic device fabrication using sunlight as UV source UV-LED exposure system for low-cost photolithography UV Leds for Direct Writing Lithography The application of UV-LEDs to printed circuit board process Dry Film Photoresist Saving Time and Money Without Compromising on Performance Development of the maskless photolithography device with an LCD-projector for fabrication of micropatterned surfaces Micropatterned surfaces prepared using a liquid crystal projector‐modified photopolymerization device and microfluidics Preparation of Microfluidic Devices Using Micropatterning of a Photosensitive Material by a Maskless, Liquid‐Crystal‐Display Projection Method Development of reticle-free exposure method with LCD projection image Microfabrication of overhanging shape using LCD microstereolithography Research on high-quality projecting reduction lithography system based on digital mask technique Development of Microfabrication Technology with Maskless Photolithography Device Using LCD Projector Simple multi-level microchannel fabrication by pseudo-grayscale backside diffused light lithography Visible Light Maskless Photolithography for Biomachining Application Fabrication of nickel micro-parts using liquid–crystal-display projection lithography and newly developed pattern transfer process Maskless microfabrication of thermosensitive gels using a microscope and application to a controlled release microchip A new hybrid diffractive photomask technology Projection photolithography utilizing a Schwarzschild microscope and self-assembled alkanethiol monolayers as simple photoresists