Engineering Commons^™

Comparing Past Board Assembly Inemi Roadmaps To Technology Outcomes, Annaka Rose Balch

ENGS 86 Independent Projects (AB Students)

This project compares past board assembly roadmaps with actual technological outcomes, examining the progression of predictions across seven significant aspects of board assembly covered in the 1994, 2002, 2007, 2013 and 2017 roadmaps: 1) Conversion Costs, 2) NPI Cycle Time, 3) Component Trends, 4) Solder Paste, 5) Bar Solder, 6) Wave Solder Flux and 7) Die Attach Adhesives. It should be noted that there are discrepancies between these roadmaps—from general outline to the many aspects of board assembly that are investigated. This project aims to bridge these discrepancies in a comprehensive fashion to better inform iNEMI and identify possible areas …

Engineering News, Spring 2019, School Of Engineering

Engineering News

No abstract provided.

Fabrication Of Photonic Lpcvd Silicon-Nitride Waveguides, Robert Dalheim

Journal of the Microelectronic Engineering Conference

The purpose of this project was to develop a repeatable process flow for Silicon-Nitride optical waveguides at RIT. Previous projects have fabricated optical waveguides out of amorphous silicon and polymers but never out of Nitride. The grating coupler pitch was varied from 700nm to 1500nm and the length was varied from 100μm to 1000μm. A target Nitride deposition thicknesses of 250nm, 500nm, and 750nm were deposited through LPCVD methods and were measured to be 150nm, 450nm, and 770nm. The thicknesses were chosen to be half the waveguide width for optimal transmission. Fabrication was successful for all three waveguide widths on …

Fabrication Of Algan/Gan High Electron Mobility Transistors, Vijay Gopal Thirupakuzi Vangipuram

Journal of the Microelectronic Engineering Conference

A first attempt at fabricating AlGaN/GaN High Electron Mobility Transistors (HEMTs) on a Si substrate was made at RIT. A basic process flow was developed to fabricate enhancement-mode devices. The proposed fabrication flow was attempted and completed. The single metallization step using Ni as the metal yielded Schottky contacts in source, drain and gate regions.

Fabrication Of Algan/Ganhigh Electron Mobility Transistors, Vijay Gopal T.V.

Journal of the Microelectronic Engineering Conference

No abstract provided.

Etching Process Characterization Of Nitride And Polysilicon Layer Using Trioniii Etcher, Sudmun Habib

Journal of the Microelectronic Engineering Conference

No abstract provided.

Transfer Process With 2d Transitional Metal Dichalcogenides Materials, William Huang

Journal of the Microelectronic Engineering Conference

The goal of this project is to expand RIT’s knowledge on non-traditional 2D materials and to develop a tape-transfer process for single to double atomic layers of Molybdenum Disulfide from a substrate containing bulk MoS2 to a blank substrate. The exfoliated materials will be inspected and characterized through both optical microscope and Raman Spectroscopy. The ultimate goal is to build it into devices to conduct electrical testing for its material and electrical properties. Material and electrical properties of the exfoliated materials will further be investigated and compared to MedeA simulation results.

Transfer Process With 2d Transitional Metal Dichalcogenides Materials, William Huang

Journal of the Microelectronic Engineering Conference

No abstract provided.

Capping Layers For Increased Thermal Stability Of Igzo Thin-Film Transistors, Jason Konowitch

Journal of the Microelectronic Engineering Conference

The goal of this project was to initially re-establish a baseline process for the fabrication of Indium-Gallium-Zinc Oxide thin-film transistors, shown in Figure 1, that have been a part of ongoing research here at RIT. After bringing the fabricated devices back into a reliable process, capping layer differences were investigated to determine their effects on device thermal stability. The time of the passivation layer anneal was varied between 3 and 4 hours for the primary lot and the temperature of the ALD capping layer was varied between 150°C and 200°C. The devices were tested and then thermally stressed on a …

Capping Layers For Increased Thermal Stability Of Igzo Thin-Film Transistors, Jason Konowitch

Journal of the Microelectronic Engineering Conference

No abstract provided.

Biristor Array Investigation, Jeremiah Dyson Leit

Journal of the Microelectronic Engineering Conference

No abstract provided.

Fefet Process Integration And Characterization, Jordan Merkel

Journal of the Microelectronic Engineering Conference

Hafnium oxide-based ferroelectrics are gaining popularity in the field of non-volatile memory due to their superior scalability in reference to traditional, lead-based ferroelectric materials and their compatibility with CMOS technology. Ferroelectric field-effect transistors (FeFETs) incorporate such materials in their gate stack, providing for bi-stable transfer characteristics and threshold voltages, which can be interpreted as storage values of 0 or 1. The difference between these threshold voltages is a FeFET figure of merit, referred to as the memory window (MW) of the device.

A process for fabricating n-channel FeFETs in-house at RIT has been developed, incorporating atomic layer deposition (ALD) of …

Fabrication Of Sub-300 Nm Fins At Rit By Sadp, Kelly Weiskittel

Journal of the Microelectronic Engineering Conference

The goal of fabricating sub-300 nm fins with the implementation of self-aligned double patterning (SADP) at Rochester Institute of Technology’s (RIT’s) Semiconductor & Microsystems Fabrication Laboratory (SMFL) was not realized completely. An energy dose meander was completed in order to qualify a new resist being used with the fabrication process that Christopher O’Connell developed for his graduate thesis. Manual spin coating of Spin-on-Carbon (SOC), bottom antireflective coating (BARC), and photoresist were all qualified. A 2:1 ratio of AZ MiR 701 photoresist to PGMEA was used to thin the resist for implementation of a 300 nm coat. Low pressure chemical vapor …

Biristor Array Investigation, Jeremiah Leit

Journal of the Microelectronic Engineering Conference

The biristor is a device that has interesting I-V characteristics. When it is current driven the reference device exhibits neural spiking. This neural spiking is characterized by a differing voltage at a steady current. If all of the devices on the chip that was designed exhibit this neural spiking behavior it has the potential of being used as a nueromorphic chip given its layout. The other method of operation is one in which a hysteresis loop is formed. This hysteresis loop can be used for hardware based encryption. This is because the device acts differently to the same stimulus based …

Fefet Fabrication And Characterization At Rit, Jordan Merkel

Journal of the Microelectronic Engineering Conference

No abstract provided.

Fabrication Of Sub-300 Nm Fins At Rit By Sadp, Kelly Weiskittel

Journal of the Microelectronic Engineering Conference

No abstract provided.

Sensitivity Analysis Of An Airfoil Using Computational Fluid Dynamics, Itay Savion

Thinking Matters Symposium Archive

In fixed wing aircrafts, the variation of lift coefficient with the angle of attack is a major consideration. This project explores the variation of lift force and lift coefficient of an SD2030 airfoil as a function of the angle of attack, Raynolds number, size of the computational domain, length of the wing, and the fluid mesh size. The problem is modeled using the flow simulation (CFD) module of SolidWorks. The outcome of this sensitivity analysis is compared with available experimental data.

Illuminator, Volume 2, Issue 8, Batten College Of Engineering & Technology, Old Dominion University

College of Engineering & Technology Newsletter

April 2019 issue of Illuminator, a monthly publication of ODU's Batten College of Engineering and Technology.

A Tunable Triboelectric Wideband Energy Harvester, Daniel S. Nelson, Alwathiqbellah Ibrahim, Shahrzad Towfighian

Systems Science and Industrial Engineering Faculty Scholarship

The ability to efficiently convert mechanical energy into electrical energy has become an important topic of discussion and research in the last decade. Triboelectric generators have recently been popular for vibration energy harvesting, but despite plenty of research on its material aspect, research on combining mechanical characteristics and voltage generation output has been sparse. Many energy harvesters suffer from low operating bandwidths and are usually restricted to operating at a specific frequency. We propose a tunable triboelectric energy harvester that has a large response over a wide frequency bandwidth at low frequencies. The tunability is implemented by axially pre-loading a …

Kinematics During Knee Extension, Lunge, And Chair Rise, Center For Orthopaedic Biomechanics, Kevin Shelburne, Phd, Michael D. Harris, Phd, Vasiliki Kefala, Donald R. Hume, Bradley S. Davidson, A. J. Cyr, R. H. Kim, A. A. Ali, E. M. Mannen

Living Kinematics of the Knee

No abstract provided.

Construction Of High-Performance 3d Nanostructured Flower-Like Iron-Nickel Sulfide For Supercapacitor, Chen Zhao, Sanket Bhoyate, Chunyang Zhang, Ram K. Gupta, Pawan K. Kahol

Posters

The global energy crisis and environmental pollution have stimulated increasing attention to developing clean and renewable alternative energy sources. One of the most efficient and greenest energy storage devices is supercapacitor which could store energy via electrical double layer and redox reactions. Supercapacitors are widely employed for many portable electronics and hybrid electric vehicles due to their high-power density, fast charge-discharge rate, and good cycle stability. In this work, 3D nanostructured flower-like iron-nickel sulfide was synthesized on the nickel foam using a facile hydrothermal method. The iron-nickel sulfide electrode showed out­standing performance for supercapacitor with a high areal capacitance of …

The Most Common Misconceptions Of Employers About Asian Females, Searching For A Position In Engineering Fields In The United States, Manaswini Bhamidipati, Tatiana Goris

Posters

The purpose of this study is to identify the common misconceptions of employers about the Asian female employees who are searching for a position in the engineering field. The study is conducted under quantitative methodology and ground theory design. The participants of this study are aware of the content of the study and are not forced to participate in the study. The research is limited to the United States. Asian female immigrants with an engineering degree are encouraged for the study.

Nanosheets Of Cuco₂O₄ As A High-Performance Electrocatalyst In Urea Oxidation, Camila Zequine, Ram K. Gupta, Pawan K. Kahol

Posters

The urea oxidation reaction (UOR) is a possible solution to solve the world’s energy crisis. Fuel cells have been used in the UOR to generate hydrogen with a lower potential compared to water splitting, decreasing the costs of energy production. Urea is abundantly present in agricultural waste and in industrial and human wastewater. Besides generating hydrogen, this reaction provides a pathway to eliminate urea, which is a hazard in the environment and to people’s health. In this study, nanosheets of CuCo₂O₄ grown on nickel foam were synthesized as an electrocatalyst for urea oxidation to generate hydrogen as a green fuel. …

Civilian Acquirer For Fire Safety (Cafs), Antara Das, Marcus Allen, Clark Shaver

Posters

The department of Electronics Engineering Technology (EET) of Pittsburg State University has designed a prototype of an autonomous rover to help firefighters to find lives trapped in a building during an event of fire. The rover prototype has been named CAFS, which is the abbreviated form for Civilian Acquirer for Fire Safety. This device intends to produce the first ever autonomous system to locate, record, and transmit people’s location from within a building to a user outside of the building. According to the National Fire Protection Association (NFPA), on 2017, 72% of the fire that happened in the USA was …

Extrusion Production Of 3d Printer Filament For Additive Manufacturing, Patrick Hardy, Cole Angermayer, Rhett Lokey, Rebeca Book, Jeanne H. Norton

Posters

Additive manufacturing, also known as 3D printing, is becoming a go-to production method for short production runs and rapid prototyping on a commercial scale. The growth of additive manufacturing is due to many fac­tors including development of concept modeling, product designing, prototyping, and customized parts. Pittsburg State University’s College of Technology strives to stay at the cutting edge of processing materials for additive manufacturing. The capability of making our own 3D-printer filament would allow students to work with new and different materials and would allow students to learn at the forefront of 3D printing technology. The Wayne Yellowjacket Extruder and …

Molybdenum Oxides For Energy Generation And Storage Using Efficient Clean Method, Camila Zequine, Pawan K. Kahol, Ram K. Gupta

Posters

To solve the growing energy issues, significant efforts have been focused on the search of earth-abundant ele­ments that can provide multifunctional behavior for both energy generation and storage. Due to the low-cost and rich chemical nature, transition metal oxide nanostructures have been used in the fabrication of energy devices, such as fuel cells and lithium batteries. In this work, nickel, cobalt and iron molybdates were synthesized via a simple hydrothermal method in order to fabricate electrodes for oxygen evolution reaction (OER) and a superca­pacitor. FeMoO₄ required an overpotential of 294 mV to achieve a current density of 10 mA/cm2 for …

Santa Clara Magazine, Volume 60 Number 2, Spring 2019 [Print Issue V. 60:1], Santa Clara University

Santa Clara Magazine

28 - TECHNOLOGY, WONDER & US We’re at the epicenter of the biggest ecosystem of information exchange in history. How do we ensure tech fosters human flourishing? By Dorian Llywelyn, S.J. Illustrations by Derek Brahney.

36 - QUERY RESULTS What questions should we be asking about ethics and AI? Here are six. By Irina Raicu J.D. ’09. Illustrations by Paul Blow.

40 - A CURIOUS CASE If you want to innovate for the world, you need the room to do it. Sanjiv Das and a tale of machine learning, mortgages, and mistaken identity. By Deborah Lohse. Illustrations by Ellen Weinstein. …

Soundboard: Planar Tracking For Instrument Control, Peter O'Sullivan

ENGS 86 Independent Projects (AB Students)

The Soundboard is the central component of Syrinx, a synthesizer instrument invented by Spencer Topel. A generated audio signal is transduced through the Soundboard, and by manually adjusting the positioning of its top metal plane, the user can manipulate the encased soundwaves before they are transduced back into a signal and output. My task for this project was to add controller functionality to the Soundboard component by implementing control voltages that carry information about its planar tilt, yaw, and altitude. These voltages can be used to modulate various digital parameters and further affect the sonic output of the instrument. Further, …

Design And Implementation Of Sql Online Practice Platform, Wenhui Zhang

Masters Theses & Specialist Projects

Database management is a very important subject in computer science education. The study of SQL syntax is the most important part of this course. The traditional teaching method only lets the students practice SQL syntax through the textbook exercise. Students cannot get the query result directly. Moreover, students do not know intuitively what is wrong with the query sentence. In this study, we want to find a better way for the teachers and the students to learn this part of database management. Teacher uploads a SQL file through a web page, it will create a database with several tables and …

Dice Mythbusters, C. Warren Campbell, William P. Dolan

Student Research Conference Select Presentations

All dice are unfair because they cannot be manufactured with absolute precision. However, some dice are more unfair than others. Each year hundreds of millions of dice are sold worldwide. Dice commonly used in role playing games are 4-sided (D4), 6-sided (D6), 8-sided (D8), 10-sided (D10), 12-sided (D12), and 20-sided (D20). Most of these are manufactured using plastic mold injection and rock tumbler methods. This method can result in dimensional inaccuracies in the dice and sometimes density inhomogeneities. In 3000-roll tests of eleven D20 dice only three tested fair. In a running chi square test it was shown that for …