Theses and Dissertations

Date of Award

12-2023

Document Type

Thesis

Degree Name

Master of Science in Engineering (MSE)

Department

Manufacturing Engineering

First Advisor

Farid Ahmed

Second Advisor

Jianzhi Li

Third Advisor

Ali Ashraf

Abstract

This paper presents a research study for potential printing of a Liquid Metal (LM) Eutectic Gallium Indium alloy (EGaIn) through the applications of the innovative additive manufacturing technology LIFT (Laser Induced Forward Transfer). LIFT is a precise printing technology that allows to create small, detailed printing. The liquid metal in study, EGaIn, has demonstrated great potential for microelectronics applications due to its minimum toxicity and high conductivity. Throughout this research different printing parameters are studied to comprehend the behavior of EGaIn printing with LIFT technique, these include laser energy, laser pulse, receiver material substrate, donor layer thickness, and transfer gap.

The results demonstrate that the different surface properties of the receiver substrate affect the delivery of liquid metal. A similar situation occurs with the transfer gap used during printing, both of these variables affect the droplets composition and contact angle when delivered in the desired surface, the well understanding of both variables allows for the creation of detailed and well-defined conductive patterns that can be printed in a flexible surface.

Comments

Copyright 2023 Olga Vargas Cruz. All Rights Reserved.

https://go.openathens.net/redirector/utrgv.edu?url=https://www.proquest.com/pqdtglobal1/dissertations-theses/laser-assisted-direct-writing-liquid-metal/docview/2928494525/sem-2?accountid=7119

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