A simple microfluidic control method that uses a piezoelectric dispenser head is developed to fabricate microdots. A glycerol mixture was used as the test fluid to simulate conductive metallic solutions. The orifice diameter of the dispenser was 50 μm. Investigations were conducted at room temperature (25 °C). For each bipolar waveform, fluid was extruded in the form of a stretching liquid colu...

Polymeric microneedles fabricated by microinjection molding techniques have been demonstrated using Topas COC as the molding plastic material. Open-channel microneedles with cross-sectional area of 100 lm · 100 lm were designed and fabricated on top of a shank of 4.7 mm in length, 0.6 mm in width, and 0.5 mm in depth. The tip of the microneedle has a round shape with a radius of 125 lm as limit...

A novel technique for the fabrication of miniature cylindrical ion trap (CIT) mass spectrometers using a non-conductive substrate has been d f U c S w 5 ©

This research focuses on the manufacturing of 1 by 4 multimode polymer splitter. MEMS fabricating process was first adopted for the fabrication of four inches silicon mold insert and then the micro hot embossing technique was applied to the optical class PMMA material for splitters. The BeamPROPTM simulation software was utilized for the design of optimal silicon mold insert. In the analysis of...

This paper describes a simple method for fabricating a variable-focus lens by using PDMS (polydimethylsiloxane) and filling with liquid for the variable-focus lens. The lens diameter of 2-mm was designed in this experiment and expected to reach the focal length in the range of 3 ~ 12 mm. The theoretical value between the liquid volume and the lens contact angle at different focal lengths were s...

 Nanosphere lithography based technique for fabrication of large area, well ordered metal particle arrays Steven J. Barcelo, Si-Ty Lam, Gary A. Gibson, Xia Sheng, Dick Henze

Using a low temperature process flow, a photoresist ashing technique was developed to define nano-gaps for the fabrication of electrostatically transduced RF MEMS. This was performed by shrinking laterally the photoresist to the required dimension in a O2 plasma etch system. Polycrystalline silicon-germanium (poly-SiGe) films replaced poly silicon as the structural layer, while poly germanium w...

Provisional restorations are fabricated to protect the prepared tooth structure during the period between tooth preparation and insertion of the definitive restoration. These restorations are also referred to in the literature as interim, temporary, or provisional restorations (prostheses). Such restorations should be uncomplicated and inexpensive to fabricate in a short period of time. Several...

In this work, a novel technique is presented for the graphene fabrication based on the pulsed laser ablation of graphite target inside the cryogenic liquid using the pulsed nanosecond Q-switched Nd:Y3Al5O12 (Nd:YAG) laser at 1064 nm. Single-stage fabrication process is taken into account as a remarkable advantage without need to high vacuum devices and additional chemical components. The synthe...

Interference-lithography and a self-aligning angle-evaporation technique are employed to fabricate interdigitated photoconductive terahertz (THz) emitters. The devices have a large active area for high directivity and submicron spaced electrodes for high internal electric fields at low bias voltages. The fabrication process offers the advantage that only one patterning step is needed to generat...