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The paper presents the process design, simulation and characterization of a silicon-on-insulator (SOI)-based dual-gate metal oxide field-effect transistor (DG MOSFET) with Al metal gate. The proposed structure is an N-channel device, using aluminum nitride (AlN) as gate dielectric. The fully depleted SOI-based DG ISFET compatible with the complementary metal-oxide-semiconductor (CMOS) process is considered...
This paper reports the fabrication of n-type MOSFET using Si3N4 as dielectric on the same wafer as ISFET for ISFET characterization. The paper presents the fabrication, simulation and characterization of metal-oxide field-effect transistor (MOSFET). The gate of the ISFET is stacked with Si3N4 sensing membrane layer that has been deposited using LPCVD system to cover the gate area. Output and transfer...
Ion-Sensitive Field-Effect Transistor (ISFET) is a popular potentiometric chemical/bio-chemical sensor. However, due to charge screening, the sensitivity of the device is significantly reduced. A logarithmic dependence is exhibited between the charge present at the electrolyte-insulator interface and the charge mirrored in the conducting channel, which limits the sensitivity of an ideal conventional...
In a distributed control wireless ad hoc network, multi-user interference plays a significant role in determining one-to-one communication throughput performance of the network. Although the effects of exposed/hidden terminals on the network throughput in a single-channel wireless ad hoc network have been extensively studied, the interference power computation at the receiver and its effect on the...
In this paper, we present a commercial sensor node platform called ScoutNode. It is based on a novel modular architecture that supports three very powerful functionalities - multimodal support with a maximum of twenty five sensors supported on a single node that includes multiple video cameras; a user- friendly API for application development, and interoperability with a variety of 802.x hardware...
Photopatterning with 266 nm UV light was accomplished on spin-coated DNA thin films using two different techniques. Lithographic masks were used to create 10-100 micron-sized arrays of enhanced hydrophilicity. Two such masks were used: (1) Polka Dot Filter having opaque squares and a transparent grid and (2) A metal wire-mesh having transparent squares and opaque grid. UV light selectively photodissociates...
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