A Novel Passive Membrane Pumping Nano Fountain-Pen

Abstract

In this paper, flow control of nano fountain pen using active membrane pumping is investigated. DPN (Dip Pen Nano- Lithography) has a shortcoming in which is the need of frequent loading and unloading while coating for broadband patterning. This issue is caused by a limit in quantity of ink, which is tied on the tip surface. The control of fluid injection using active membrane pumping in chambers is the answer of the problem. The flow rates in channels with the presence of capillary force are analyzed including the cantilever deflection and the control of mass flow rates by deflection of membrane. Finally, in this paper, the membrane deflection using a nano indentation equipment has been experimentally examined.