Review Type: Soft Lithography & microfabrication

HOW TO CHOOSE THE RIGHT UV SOURCE FOR THE PHOTOLITHOGRAPHY OF SU-8 MICROFLUIDIC MOLD? Photolithography UV sources are used in micro fabrication to expose a layer of photoresist. Depending on the different applications and photoresist, the choice for a specific UV source is different. That’s why, in the case of the soft-lithography, it’s important to … Continued

HOW TO CHOOSE THE RIGHT PLASMA CLEANER FOR THE PDMS BONDING OF YOUR MICROFLUIDIC CHIP? Plasma cleaner and PDMS soft lithography Plasma cleaners you may buy on the market are machines that haven’t been specifically developed to perform PDMS glass bonding. For that reason it is important to look carefully at some parameters to make sure … Continued

HOW TO CHOOSE THE RIGHT SPIN COATER FOR THE PHOTOLITHOGRAPHY OF THE SU-8 MICROFLUIDIC MOLD? Spin coaters are used in the photolithography of a microfluidic mold to coat a photoresist layer (such as SU-8) on a substrate. However, they are made to be versatile for all kinds of photoresists, that’s why for a SU-8 photolithography application … Continued

HOW TO CHOOSE THE RIGHT PHOTOMASK TO FABRICATE YOUR SU-8 MICROFLUIDIC MOLD? There are several ways to imprint a pattern on a photoresist. It’s possible to directly write on the photoresist with a microfabrication tool such as a laser for example but the most used method is to imprint the pattern thanks to a photolithography … Continued

HOW TO CHOOSE THE RIGHT PHOTOLITHOGRAPHY HOT PLATE FOR YOUR SU-8 MICROFLUIDIC MOLD There are two kinds of equipment commonly used in laboratory to bake SU-8 photoresists for the fabrication of your microfluidic mold: ovens or hot plates. Note that the advice given here for SU-8 photoresist baking also remains relevant for other types of … Continued

How to choose a microfluidic 3D printer? In this review we explain existing 3D printing technologies, their variations and limitations. The technologies described here are based on the same system of additive process, every object is built layer by layer after being sliced by an informatic system. Types of Microfluidic 3D Printers Microfluidic 3D Printer: … Continued

Glass / PDMS plasma bonding The plasma bonding step enables to finish your microfluidic chip fabrication. To permanently bond the PDMS chip to the glass slide, researchers use a plasma cleaner to change the surface properties of glass and PDMS. The plasma treatment will modify the surface chemicals and allows to stick the PDMS with … Continued

Influence of your microfluidic laboratory environmental parameters on your photomask Full soft-litho box A turnkey offer to fabricate your su-8 mold and pdms chips Environmental and mechanical conditions can affect the overall size of the photolithographic mask Considerably when it is polyester film-made, and to a lesser degree when it is glass-made. Those dimensional changes … Continued