Christos Boutopoulos
Research Center of the Maisonneuve-Rosemont Hospital, Montreal, Quebec, Canada
Department of Ophthalmology, Université de Montréal, Montreal, Quebec, Canada
Abstract:
Laser-induced forward transfer (LIFT) is a versatile direct-write technique that uses laser pulses to transfer material from a donor to a receiving substrate in a very precise fashion. LIFT enables 2D and 3D micro-printing of a large variety of functional materials, including nanoparticle (NP) inks, polymers, metals as well as living cells and proteins. Depending on the application, LIFT attains spatial resolution ranging from few hundred nanometers to few micrometers. This emerging technology is particularly interesting for rapid prototyping of micro-electronic and micro-sensing elements, which is time consuming and costly to fabricate with traditional manufacturing such as photolithography. I will first present the key LIFT developments over the last ten years and outline the physical mechanisms involved in the material transfer process. I will then focus on our recent work, including the use of LIFT as an efficient tool to print conductive interconnects, MEMS-based chemical sensors, and photosythetic biosensors. Finally, limitation of the technology and future directions in the context of 3D bio-printing will be discussed.
Cette conférence est présentée par le RQMP Versant Nord du Département de physique de l'Université de Montréal et de Génie physique de la Polytechnique.
