Microfluidics photomask design using AutoCAD software for the application of DNA extraction in Lab-On-A-Chip biosensing devices

A. Ayoib, U. Hashim, V. Thivina, N. K.S Nordin


Photomasks are photographic patterns that are essential stencils used in making microcircuits where it is simulated under ultraviolet light onto a photoresist for pattern transfer in any fabrication process. This study outlines a simple and unelaborated design and specification of microfluidics photomask for the application of DNA extraction in Lab-On-AChip (LOC) biosensing devices. There is a set of requirement to be considered to ensure a precise and correct pattern transfer, namely, resolution, dimension, uniformity, and patent alignment. The design is plotted with two inlets and one outlet using AutoCAD software and materialized by inkjet printing. Total surface area of the device is 459 mm2 in which the width and length is 27 mm and 17 mm respectively. The design was patterned in such particular sizes and dimensions to enhance fluid delivery and biochemical processes involved in DNA extraction while maintaining economical values as a disposable chip for when it is fabricated.


Microfluidics; Photomask; AutoCAD; DNA extraction; Lab-On-A-Chip

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