Striped Droplet Deposition on Patterned Surfaces Using Inkjet-Printing Method

Chin-Tai Chen; Chung-Yi  Hsu; Ching-Long Chiu

doi:10.6180/jase.2007.10.2.02

Striped Droplet Deposition on Patterned Surfaces Using Inkjet-Printing Method

Physics

Chin-Tai Chen This email address is being protected from spambots. You need JavaScript enabled to view it.¹, Chung-Yi Hsu¹ and Ching-Long Chiu¹

¹Industrial Technology Research Institute (South), Tainan, Taiwan 734, R.O.C.

Received: February 27, 2007
Accepted: April 13, 2007
Publication Date: June 1, 2007

Download Citation: ||https://doi.org/10.6180/jase.2007.10.2.02

ABSTRACT

Striped droplet deposition represents a novel non-photolithographic scheme, which is based on current ink-jet printing technique and self-alignment for implementation of microfabrication. Generally thought to be one of soft-lithographic systems, this scheme provides a low-waste, high-speed, and cost-efficient process for the formation of microstructures in Microelectromechanic systems (MEMS) field. We reported a number of generated striped patterns, which differ from conventional ones on the non-planar shapes, typically featuring a convex shape, a width of 180 μm, and a height of 12 μm in the study. Moreover, the 1 x 54 arrays of the above striped micro-meter structures deposited by transparent polyurethane (PU) droplets were fabricated by inkjet technique, measured for 2-D/3-D profiles by laser-scanning facility, and thus examined by optical microscopy (OM) and scanning electron microscope (SEM) for their topography. Those generated patterns were smooth on surfaces and therefore useful on the potential applications, such as lens-array chips and waveguide devices etc.

Keywords: MEMS, Inkjet, Droplet, Striped Pattern, Soft Lithography

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