Lionel Buchaillot

Learn More
We experimentally show vertically stacked, multi-layer, low-temperature deposited photonics for integration on processed microelectronics. Waveguides, microrings, and crossings are fabricated out of 400°C PECVD Si 3 N 4 and SiO 2 in a two layer configuration. Waveguide losses of ~1 dB/cm in the L-band are demonstrated using standard processing and without(More)
This paper presents a microgripper using an amplification mechanism coupled to an electrostatic linear motor. The gripper design, particularly the principle of the amplification mechanism based on the combination of ground-links and moving pin-joints, is explained. The linear motor is composed of scratch drive actuator inducing the use of electrostatic(More)
16MHz and 91MHz micromechanical resonators based on the Resonant Suspended-gate MOSFET (RSG-MOSFET) architecture are demonstrated. A fabrication process using a polysilicon sacrificial layer and an aluminum-silicon alloy (AlSi 1%) suspended-gate was developed. Static and dynamic electrical characteristics of the Clamped-Clamped beam (CC-beam) resonator have(More)
—A 14-MHz in-plane nanoelectromechanical resonator based on a resonant-suspended-gate (RSG) MOSFET principle and integrated in a front-end process is demonstrated. The devices are in-plane flexural vibration mode beams (L = 10 µm, w = 165 nm, and h = 400 nm) with 120-nm gaps. This letter details the design and process flow fabrication steps. Then, the(More)
This paper presents results about fabrication and operation of electrostatic actuators in liquids with various permittivities. In the static mode, we provide experimental and theoretical demonstration that the pull-in effect can be shifted beyond one third of the initial gap and even be eliminated when electrostatic actuators are operated in liquids. This(More)
— Gallium nitride (GaN) is a wide bandgap semiconductor material and is the most popular material after silicon in the semiconductor industry. The prime movers behind this trend are LEDs, microwave, and more recently, power electronics. New areas of research also include spintronics and nanoribbon transistors, which leverage some of the unique properties of(More)