Micro-Fluidics Interest Group

In the column on the right you will find useful information about the manufacturing of micro-fluidic devices.

Below you will find recent posts on the 4M Association which are considered to be of interest to the Micro-fluidics Interest Group.

injection moulding

Injection moulding is a manufacturing process for producing parts from both thermoplastic and thermosetting plastic materials. Material is fed into a heated barrel, mixed, and forced into a mold cavity where it cools and hardens to the configuration of the mold cavity. After a product is designed, molds are made from metal, usually hard steel, and precision-machined to form the features of the desired part.


Sandblasting is a generic term for the process of smoothing, shaping and cleaning a hard surface by forcing solid particles across that surface at high speeds. Micro sandblasting uses air to create structures on a micrometric scale.


Micro milling is a mechanical way to structure a substrate. It works like milling, but on a microscopic scale. The material is removed by a fast rotating cutter. By moving this tool, the structure is created on the substrate.


Photolithography (also called optical lithography) is a process used in microfabrication to selectively remove parts of a thin film (or the bulk of a substrate). It uses light to transfer a geometric pattern from a photomask to a light-sensitive chemical (photoresist) on the substrate. A series of chemical treatments then engraves the exposure pattern into the material underneath the photoresist.

laser photo ablation

Laser photo ablation is a direct micromachining method. It is based on the removal of polymer material by using intense UV or infrared irradiation provided by a laser. The radiation wavelength used affects the removal mechanism. If infrared lasers are used, the irradiated material is heated and decomposes, leaving a void in the polymer material. If UV radiation is used, the irradiated polymer decomposes, presumably of a mixture of two mechanisms: thermal and direct bond breaking. Thermal bond breaking is induced by heat, as with infrared irradiation. In direct bond breaking, polymer molecules directly absorb ultraviolet photons, often absorbing enough energy so that the chemical bonds within the polymer chains are broken. The resulting smaller polymer chains are volatile or melt at much lower temperatures than the bulk polymers, leaving a void in the material.

4th congress on Micro and Nano Manufacturing

Micromachines - Supporting the 4M Association

MDPI - Supporting the 4M Association

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Micro-Fluidics Interest Group

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