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FAQs

1. What kind of materials can be used in fabrication?

Microfluidic patterns can be fabricated on plastics such as PMMA, COC, etc. We can do photolithography followed by soft lithography to create microfluidic patterns on PDMS.
To make metal masters, we are capable of milling patterns on Brass and Aluminum.

2. How are the chips bonded?

a. PDMS with glass
b. PMMA with PMMA film of 250 μm thick
c. COC with COC film of 250 μm thick

3. What is the time taken for fabrication?

The device fabrication on PDMS will take 2 to 3 weeks and for making patterns on plastics and metals we could complete within a week.

4. Do you also provide port connectors and reservoirs?

Yes ! We can provide the following connectors for patterns fabricated on plastics upon request:
a.  A port connector compatible for 1mm port size will be supplied along with one-piece fitting to connect 360 μm PEEK capillary tubes.
b.  A male mini luer with metal pin assembly will be supplied to connect tygon tube of 0.5 mm inner diameter between fluid ports and syringe      pump.
c.  Liquid storage reservoir of capacity 100 μl. We do not provide connectors for devices fabricated in PDMS.

5. What is your suggestion for us, to quickly try our design?

We recommend starting with devices on plastics for quick trials as it takes lesser time and cost for fabrication compared to
devices on PDMS.

6. What is the accuracy in the design patterns you make?

a.  Patterns made on PDMS – Length = ± 10 μm, width = ± 5 μm and depth = ± 5 μm
b.  Patterns made on plastics – Length = ± 5 μm, width = ± 5 μm and depth = ± 10 μm

7. What are the dimensional limitations?

a. Patterns on PDMS – 50 μm ≤ Width ≤ 20 mm and 10 μm ≤ Depth ≤ 200 μm
b. Patterns on PMMA – 30 μm ≤ Width ≤ 50 mm and 10 μm ≤ Depth ≤ 10 mm
c. Patterns on COC – 200 μm ≤ Width ≤ 20 mm and 10 μm ≤ Depth ≤ 1 mm

8. What is the format I should be using to submit a design file to you?

You can can upload your designs made in Autocad (2002 or 2004 or 2007) .dwg or .dxf formats.