Lab on a chip technology

​The innovative power of Klearia’s microfluidic technology lies in its application on a lab-on-a-chip. Labs-on-a-chip are devices of a reduced size for monitoring of tiny samples. This technology is commonly used for pregnancy or glucose tests.

Glass chip

With this disruptive technology, Klearia develops and produces advanced electrochemical analysers like our first all in one product                                    

                                                  that revolutionises water analysis.


For more details about this product visit our website dedicated at


Fabrication process

Our manufacturing process is carried out in a clean room environment using 4" microelectronic process equipment. Its based on a one glass wafer structuration and cover it using flat glass wafer for sealing. For each manufacturing process, one lithography mask will be needed.

glass chip manufacturing
clean room

Wet etching


Devices are mainly wet etched (hydrofluoric acid HF). This process leads to a typical isotropic etching.

wet etching

Numerical file must be adapted according to technology request to take into account the principle of wet etching (The final widths in your chips will be the widths in your numerical design + 2 times the depth).

wet etching

Low temperature bonding


Bonding refers to the possibility to unite two or more substrates. Glass lab-on-chips are typically manufactured with a high temperature bonding (between 700°C for Pyrex transition, and 1 100°C for fused silica transition). However, high temperature bonding makes instrumentation or embedded technologies delicate because only high temperature fusion materials such as ITO, Pt, Au and Cu can be integrated on chips.

low temperature bonding

With its capacity to innovate, Klearia has overcome this technological limitation and has developed a technique to bond at a temperature between only 100°C and 300°C. This allows the integration of materials for embedded technologies, and in particular termodegradable substances, such as carbon or nanostructured gold.