Graduate Student Spotlights

Vincent Radzicki – Ph.D. Student in Communications & Signal Processing
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  • Hometown: Fountain Valley, CA
  • Degrees: B.S. Electrical Engineering, UCSB (2013) and M.S. Electrical Engineering, UCSB (2015)
  • Degree sought from UCSB and Progress: Ph.D. (3rd Year)
  • Important Awards and Honors: William R. Hearst Scholarship (2012); Graduate Student Paper Award (1st Place) at International Telemetering Conference, 2015
  • Graduate Study Area: Communications, Controls, and Signal Processing (CCSP)
  • Main Area of Research: Signal processing and image reconstruction algorithms
  • Research Interests: Microwave Imaging and Sensing, Radar Signal Processing, Target Tracking and Identification
  • Advisor / Lab: Professor Hua Lee / Imaging Systems Lab
  • Important Conferences Attended: International Telemetering Conference (ITC); IEEE Radar Conference
  • Professional Memberships: IEEE Signal Processing Society (SPS); IEEE Geoscience and Remote Sensing Society (GRSS)
  • UCSB Organizations: UCSB Intramural Sports League (Basketball)
  • Hobbies: Basketball, hiking, reading, and engineering


Favorite things about

  • ECE department: The faculty here is comprised of accomplished researchers, and the students are talented and driven engineers as well. Most are very amicable and enjoyable to work with as everyone is committed to making a strong impact in their field. This positive environment makes everyone working here proud to be a part of it.
  • UCSB: UCSB is a great institution that features both world class academics and research. The campus is also located literally right on the California central coast that offers stunning views. These two aspects offer a unique and exciting student experience that I am very happy to have.
  • Santa Barbara: The city is a cool place to live due to its great weather, scenic area, and diverse environment. There is a variety of outdoor activities, cultural experiences, museums, and city areas to explore that ensure there are always interesting things to do outside of one’s school activities.

More about Vince and his research

Tell us about your research

Our lab focuses on advanced signal processing techniques for sensing and imaging systems. The emphasis is on two and three dimensional image reconstruction algorithms from scattered coherent wavefield data. Applications include high resolution radar imaging, microwave non-destructive evaluation, and medical tomography. Current topics of interest are the integration of target motion detection and tracking with image formation algorithms for increases in efficiency and accuracy.

How and why did you get into your area of research?

For my senior design class, I was fortunate to be able to work on a research project in my area focused on ground penetrating radar systems under the supervision of an experienced faculty member in the area. It was very exciting to see how the theoretical concepts taught in the classroom applied to real world systems, and could be utilized to solve complex engineering problems. I wanted to be able to build upon what I learned from that experience and contribute to the field in a more substantive and meaningful way.

Why did you select UCSB and ECE in regards to your research?

The ECE department has a very strong faculty that is well-regarded in the signal processing community; therefore I believed being able to work under them would be beneficial to my success. The breadth and depth of research coverage at UCSB, would also provide me with a well-rounded technical knowledge upon graduation. I was a member of UCSB ECE as an undergrad, so I was lucky in the sense that I was able to draw my conclusions from first-hand experience. I also was able to work with my advisor at that time (Prof. Hua Lee), who was a great and supportive mentor.

What do you find rewarding about your research?

Working on academic research is challenging and can be intimidating as you are trying to find solutions to many unsolved questions. However, with the help of your advisor and group, along with hard work and focus you will find success. Being able to make an impact in your field and solve problems that don’t have solutions written in a book somewhere, ultimately, is a very satisfying feeling that makes all the hard work worthwhile in the end.

UCSB prides itself on its collaborative atmosphere, give some examples of how you collaborate

The professors and students at UCSB all do a good job at fostering a collaborative environment. Many professors are happy to answer off-the-cuff questions in class or office hours about student’s research and provide their expert advice. The students are also very open to discussing one another’s research topics with the hopes of potentially sparking new ideas and approaches. My research group has been involved in many collaborative projects with other campus labs and industry groups. I myself work with an outside company working on similar research in the hopes of advancing the state-of-the art of our field.

Thoughts on working in a group research environment and your experience working with an advisor

Being able to work in a group under an advisor is a key aspect of any graduate school. As an undergrad, the vast majority of what you do is individually based. Research problems, however, are often very complex and require collaborative efforts to solve. Working in a research group with successful peers and an experienced mentor is a great experience to learn how to do this effectively. The academic research model has been around for a while, and it has repeatedly been proven to be very successful. I know that my group and advisor have been very supportive and encouraging, which really makes the whole research process enjoyable.

Where will your research take you next?

As of now, I am mainly focused on my research work, but afterwards I hope to go into industry to apply some of my ideas to real-world applications.

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Vince's thoughts on the academics at UCSB

Strengths of the graduate program

The professors here are very committed to teaching and there are many excellent teaching facilities such as our electronic device fabrication labs that are not available at many other universities.

Favorite course

My favorite class was ECE 278C (Imaging Systems) by Professor Hua Lee. The course begins with the basic principles of imaging from optics and builds up to more complicated material at the end. It is exciting to see complicated ideas being synthesized from first principles in an enthusiastic manner.

Experience with the graduate exams

Going into it any exam is always tough because you never fully know what to expect. There is plenty of support structure in place for you to succeed as long as one is prepared and confident it tends to work out in the end.

Describe your experience as a Teaching Assistant (TA) and Graduate Student Researcher (GSR)

Teaching a class is an invaluable experience, where you learn almost as much as you would from taking the class. The ability to explain complicated concepts in a succinct manner not only helps your own understanding, but is a skill that can be applied in whatever endeavor one pursues after graduate school. I have been fortunate to TA both lab and theory based classes. The theory classes were enjoyable as you get to practice a more traditional form of teaching at a high level and see what life is like on the other side of the classroom. I also was lucky enough to TA the Senior Design Capstone (188A/B/C) classes, which has probably been my favorite academic experience at UCSB. In the class, the seniors get to put together all their skills and knowledge they have learned to design and build an advanced engineering project from scratch. It is really exciting to help highly motivated students build these very cool projects, and although the problems can be very challenging, seeing the finished products at the end of the school year is a proud and rewarding experience.

Life as a graduate student

Quality of life as a graduate student and how you balance school, work, social, and family life

The quality of life at UCSB is very nice for graduate students. You have the opportunity to work at an excellent academic institution and live in a terrific area. Balance is always key, so I always just try to work hard on achieving my goals while maintaining a clear perspective.

What is your social life like and where have you lived?

People in Santa Barbara are very friendly and it is a fun place to relax with friends. I have lived in apartments, dorms, and houses throughout my time at UCSB, and as of now I live in an off-campus apartment in Goleta for a quiet atmosphere. Because the area is such a nice place to live, finding housing that fits your ideal preferences can be competitive. If you are prepared and persistent with your housing search, you will find something that works for you.

What did you plan to do over Summer break?

I plan to work at a local company (AKELA inc.) and also work on my research.

Advice to prospective graduate students

Focus mainly on doing good work, and try to learn as much as possible. Also, keep a healthy perspective on life while maintaining a good balance. The time will probably go by faster than anticipated, so just make the most of each experience at UCSB.

Hari Sivakumar - Ph.D. Student in Controls

photo of hari sivakumar
  • Hometown: Singapore
  • Degrees: B.S. (2009) and M.S. (2010) Electrical Engineering, University of Michigan Ann Arbor
  • Degree sought from UCSB and Progress: Ph.D. Electrical Engineering, 6th year
  • Graduate Study Area: Controls
  • The application of systems theory to the study of complex biological networks
  • Advisor: Professor Joao Hespanha
  • Research Interests: Systems biology, Modularity, Dynamical systems, Bifurcations, Biological oscillators, Gene regulatory networks
  • Important Awards and Honors: UCSB ECE Department Outstanding TA Award, 2011. Doctoral Student Travel Grant, 2015.
  • UCSB Student Organizations: UCSB Agni: Indian Classical Music and Dance (Founder and President, 2011-2014), UCSB Ravaani: South Asian Acapella (Member, 2011-2014), India Association of Santa Barbara (Vice President, 2011-2012)
  • Professional Memberships: Eta Kappa Nu
  • Hobbies and Activities: Indian Classical Percussion, Running, Reading. Interests: Data Science, Cricket, Football, Politics, World religions, Philosophy, Teaching
  • Interesting aside about Hari: I have learned the Tabla and the Mridangam, two Indian Classical Percussion instruments, since I was young. Together with some close friends, I founded a group on campus called UCSB Agni, whose mission was to foster student performers of Indian classical artforms and promote it to students and the Santa Barbara community. I have performed on campus till recently. Now, I'm working hard to graduate!

Favorite things about

  • ECE department: The faculty are all very approachable and genuinely helpful. Graduate students have a good work-life balance. Classes are taught in a way that students learn a lot from them, and are not demoralized at the end of it.
  • UCSB: The UCSB campus is compact and easy to bike around. There are a lot of research collaborations that allow students to see what goes on in many departments other then their own. Of course, it helps that campus is ON the beach, not a few miles away!
  • Santa Barbara: The views and the sunsets. I can never get enough of gazing at the mountains and the ocean.

More about Hari and his research

  • Important Conferences attended: American Control Conference (2013) - Talk. Winter q-bio meeting (2015) - Poster; IMA Biological Systems and Networks Workshop (2015) - Poster; AMS Western Sectional Meeting (2016) - Invited Talk [Upcoming]
  • Most important publications to date: "Towards Modularity in Biological Networks While Avoiding Retroactivity" (ACC, 2013); "Modular Decomposition and Analysis of Biological Networks" (in preparation); "A Modular Approach to Analyzing the Evolution of the p53 Pathway" (in preparation)
  • Dissertation title: "Towards a Modular Approach to Analyzing Biological Networks
  • Types of financial assistance received: Graduate Student Researcher (GSR), Teaching Assistantship (TA)

Tell us about your research

Biological systems are inherently very complex in nature, typically consisting of multiple highly non-linear molecular interactions. As a result, even relatively small networks, such as the lactose regulation network in bacteria, tend to display very complex behaviors.

One such network is the DNA damage response network which plays a major role in tumor suppression. The central hub of this network is the p53 protein; it plays a critical role in guarding against cancer development. In humans, p53 is part of a sophisticated network of proteins that mediate cell fate decisions such as the initiation of cell-cycle arrest, DNA repair and apoptosis. Aside from p53, this network includes a set of core regulation proteins among a host of other upstream, downstream and intermediate species involved in sensing, transduction and regulation.

In collaboration with the Proulx lab in the Evolution, Ecology and Molecular Biology (EEMB) department, we explored the evolutionary history of the DNA damage response network. While the p53 protein’s function seems to have been preserved for over one billion years, this is not the case for the other core regulation proteins in the network.

We use the evolutionary analysis as the starting point to partition our dynamical model of the p53 network into smaller sub-units or "modules", such that properties of the network can be inferred from properties of these modules. Using this modular analysis, we attempt to infer the function of each module within the network. Our results show an evolutionary path towards networks with an increasingly complex structure of multi-stability, which we conjecture is associated with cell fate decisions.

How and why did you get into your area of research?

I will never forget that when I first came to UCSB as a PhD student in Controls, I thought I would choose any project other than one that involved Systems Biology! I met Prof. Mustafa Khammash (then at UCSB) casually and he gave me a set of papers to read. One paper that he co-authored changed my entire perspective on the field. It was a paper about calcium homeostasis in cows. The paper went on to mention that two hormones are known to control this homeostasis, although one is thought by Biologists to be redundant. By modeling the network as an integral feedback loop the authors showed that both hormones are actually necessary, otherwise after lactation, the calcium levels would not return to their nominal level. The thought that simple ideas from undergraduate control theory could be so powerful in explaining complex biological phenomena was what lead me to pursue Systems Biology related research.

What do you find rewarding about your research?

Due to the highly interdisciplinary nature of my work, I find it most rewarding when I am able to present my work to both engineers and biologists in a way that they can understand.

Why did you select UCSB and ECE in regards to your research?

UCSB has one of the strongest Control theory groups in the country. To get an opportunity to work and interact with the faculty here is an honor.

Thoughts on working in a group research environment and your experience working with an advisor

My advisor Prof. Joao Hespanha has been incredibly supportive throughout my PhD. He has been instrumental in me pursuing Systems Biology research, even though I had very limited prior knowledge in Biology. Whenever I have problems with my research, he is always able to offer a very simple (although incredibly insightful) solution. I'm also thankful to have a great set of lab-mates that I see every day. We have a very diverse lab with students, post-docs and visitors of multiple nationalities. When we're not discussing work, a lot of our conversations center around football (soccer) and world politics!

Where will your research take you next?

I hope to use my quantitative background and interdisciplinary experience in both Engineering and Biology to study and infer the plethora of data that is available about complex biological networks. I believe that this is certainly the future when it comes to studying complex biological networks. I hope to become a Data Scientist in the industry in the short-term future. I also hope to get an opportunity to teach in an academic environment, as teaching is a strong passion of mine.

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Hari's thoughts on the academics at UCSB

Strengths of the graduate program

The greatest strength of the program is how approachable the faculty are. I have taken so many classes and learned so much from them, in no small part thanks to the faculty. I have never felt inadequate, even when asking the most fundamental questions to my Professors in class. Of course, it is worth mentioning that the department is engaged in cutting-edge research.

Favorite course

My favorite courses as a graduate student are ME 215A and B (Dynamical Systems Theory) taught by Profs Igor Mezic and Jeff Moehlis. As a Control Theory student with an ECE background, I somewhat understood the underlying dynamics in systems. However, most of the focus in Control is on the design and analysis of the controllers. Taking Dynamical Systems Theory opened up my mind to how and why systems behave in the way they do, and I highly recommend all Control students with an ECE background to take these two classes.

Experience with the screening exam and the qualifying exam

Screening exam: The screening exam was quite an experience; essentially, 5 Professors ask you any question under the sun about all your relevant undergraduate work. Although I was extremely nervous before the exam, one of my lab mates told me something on the morning of my exam that certainly helped me, and I hope will help others as well. Don't worry, the Professors are there to help you and not to fail you. Just relax and work through the questions with them.

Qualifying exam: The qualifying exam was a less intense experience, since one is talking about one's own work. Preparing for the qualifying exam certainly helped me to organize my thoughts and my findings, which I feel is an extremely important part of the PhD. It also helped to build my presentation skills; speaking out loud in a clear fashion is certainly very different from mulling over thoughts in my head!

I am currently working on my thesis.

Describe your experience as a Teaching Assistant (TA) and Graduate Student Researcher (GSR)

TA – In my first year, I taught ECE 130A, 130B and 139. Every week, I would plan a 1.5 hour lecture to deliver during the discussion section (for all 3 classes), and of course hold office hours as well. Teaching is my greatest passion, and I really enjoy being able to simplify concepts to teach students. I think it is key to bring oneself down to the level of the students. As someone who struggled with these 3 (very mathematical) classes as an undergrad myself, I was able to identify the concepts that confused me and therefore what would probably confuse other students. Graphical convolution is certainly one of the most confounding things when one first learns about it, only to realize that one will never have to use it again!

GSR – Research on its own is very interesting, which is why I pursued a graduate degree. I think the key thing I didn't realize as an undergraduate student was how challenging it can be to define a research problem, and communicate the idea behind this problem effectively. It is almost like designing your own product. What is it? Why is it useful? Why is it novel? Moreover,as time passed during my PhD and I became more familiar with the research area, the problem definition itself (along with the solution) morphed a little bit. It was unexpected at first, but I slowly got the hang of it.

Life as a graduate student

Quality of life as a graduate student and how you balance school, work, social, and family life

I have a time table which I try to follow. I make sure I reserve time on the weekends to take care of myself (cooking, grocery shopping, cleaning), be involved in music and speak to my wife (who is a PhD student in the East Coast). I think it is also very important to stay mentally relaxed, so I do actively have to disconnect my mind from research on most nights. I also ensure that I run in the evenings a few times a week.

Social life and living in Santa Barbara

Till the Fall of 2014, on nights and weekends, I was actively involved in 2 student groups on campus. With some close friends, I founded UCSB Agni, an Indian Classical music and dance group that fosters student artists and organizes performances on campus for students and the community. I was also part of UCSB Ravaani, the university's South Asian Acapella team. Going for Acapella practices, making music with my friends and preparing for performances used to take up most of my evenings and weekends. I also made some great friends in the process, many of whom have graduated but are still in touch. Since then I have gotten busier with my research, but still perform sporadically around campus. I hope to be more active in music once I graduate!

What will you do over Summer break?

Fingers crossed, I am looking to graduate by the end of this summer. So I'll definitely be here!

Advice to prospective graduate students

My advice is as follows:

1) Be patient. If positive results came quickly, we would all be done with our PhDs in a year! We are all swimming in unknown territory, but if we keep at it, results will certainly come.
2) Stay calm. Unlike in undergrad when stress levels elevate before exams and then drop, the stress slowly and gradually builds up in the PhD. I did not even realize the stress levels building up until others pointed it out to me! It helps to actively engage in research when you are at work, and actively disengage when you are relaxing. Set aside time to relax, and try to focus better when you are doing work. It also helps to exercise regularly, even if it is for a short while.
3) Avoid competition. It is very easy to get caught up in comparing the number of publications, citations and time to graduation against others. However, I think that time is better spent focusing on one's own research problem. Remember, everyone's PhD is different. The PhD is a journey in academic maturity, and avoiding unnecessary competition and barometers for success helps make it much more pleasurable.

Tanya Das - M.S./Ph.D. Student in Electronics & Photonics


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  • Hometown: Rochester Hills, MI
  • B.S. and M.S. Degree: B.S. in Electrical Engineering from University of Michigan, Ann Arbor
  • Degree sought from UCSB: M.S./Ph.D. 5th year
  • Graduate Study Area: Electronics & Photonics
  • Main Area of Research: Nano-optics
  • Advisor and Lab: Jon Schuller / Schuller Lab
  • Research Interests: Metamaterials, Mie Theory, Plasmonics
  • Professional Memberships: International Society for Optics and Photonics (SPIE), American Association for the Advancement of Science (AAAS), Materials Research Society (MRS)
  • UCSB Organizations: Beyond Academia
  • Hobbies: Reading, writing, creating and consuming fantastic culinary delights
  • Interesting aside about Tanya: I have interned at NASA 3 times. The last time, I got to sneak into JPL's Mission Control days after the Curiosity Rover landed on Mars.

Favorite things about

  • ECE department: The people here, faculty and grad students alike, are very passionate about what they do, both in research and in their personal lives. This makes for very interesting friends and conversations.
  • UCSB: The graduate student community here is very close. I know several students in departments outside ECE, which I don't think is typical of all schools.
  • Santa Barbara: The beach, the breeze, and the views

More about Tanya and her research

  • Types of financial assistance received: Graduate Student Researcher and Teaching Assistantship

Tell us about your research

Typical light-matter interactions have size scales in which the wavelength of light and the size of the object it is interacting with are very different. When light interacts with objects that have sizes similar to the wavelength of light, then interesting things start happening and we can actually start to control the way light behaves. In this size regime, objects exhibit a series of resonances at certain wavelengths, known as multipolar resonances. By manipulating these resonances, researchers have created new materials with very interesting optical properties beyond those of naturally occurring materials, known as metamaterials. Typically, researchers manipulate these multipolar resonances by changing the physical properties of the objects (e.g., size, shape, material, etc.). Instead, my research focuses on manipulating the properties of the light. This enables a completely different way of manipulating multipolar phenomena.

How and why did you get into your area of research?

When I started college I wanted to be an engineer, but didn't know what kind. I initially wanted to be any kind of engineer except an Electrical Engineer, because that's what my father is and I wanted to do something different. But after I started taking college classes, I realized EE is actually what I really like. I enjoyed physics in high school but never wanted to be a physicist, and EE is a happy medium between physics and engineering.

Why did you select UCSB and ECE in regards to your research?

I selected the ECE department at UCSB because it has a fantastic reputation and because I had lived in Michigan my whole life before then, and I wanted to experience living somewhere different. I had applied to the Master's program at first as I wasn't sure I wanted to do a PhD, but that quickly changed after I arrived at UCSB.

What do you find rewarding about your research?

When things go right in research, it's one of the most satisfying feelings in the world!

UCSB prides itself on its collaborative atmosphere, give some examples of how you collaborate

Although our research group is the only one at UCSB that works on metamaterials, we collaborate with other groups for a variety of purposes. One of my labmates is working on building a specialized measurement setup, and he gets his samples from a group in the Materials department. Another labmate of mine is working on a reconfigurable metamaterial that requires a lot of semiconductor device design, and he collaborates with the Mishra and Palmstrom groups to figure out his design and to get material to actually fabricate his design. We also have collaborations with Brown University and UCSD.

Thoughts on working in a group research environment and your experience working with an advisor

I really enjoy working with my research group. We fit really well together. They are all really interesting people and I enjoy learning from them and being exposed to things I normally wouldn't be exposed to. Many of my labmates possess important research skills that I lack, and it's extremely beneficial to be surrounded by them so I can learn from them. Additionally, when I started out with Jon, my advisor, I didn't have a background in this field. Jumping into something completely new was intimidating, at first, but partly because our research group is so new (Jon joined UCSB in 2012), we were all new to the field and all learning together.

Where will your research take you next?

I plan to transition into a career in which I can more directly see the impacts of the work I do by bridging the gap between science and society. I don't think there are enough scientists in positions where they are regularly interacting with and impacting the public in meaningful ways, which has contributed to a disconnect between the scientific realm and the public. Specifically, I plan to go into a career related to science education or policy.

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Tanya's thoughts on the academics at UCSB

Strengths of the graduate program

There are many knowledgeable students and professors who excel at a wide variety of research. If there is any question you have about some type of software, or some type of circuit or device you are trying to design, a useful conversation about it is just an email away. Also, many students in ECE research groups are actually from other departments which naturally encourages multidisciplinary projects.

Favorite course

My favorite course at UCSB was Digital Circuit Design taught by Luke Theogarajan. I doubt I would have said that at the time I was taking the course, and even though I learned only half of what was taught, even that half was an incredible amount of information. A lot of my appreciation for that class was because Luke was teaching it. He is one of those rare professors who actually takes a personal interest in the success of the students he encounters.

Experience with the graduate exams

Preparing for the screening exam was pretty stressful at the time. I was preparing for the screening exam over the summer, when I was also doing a full time internship. I was grateful when it was over. The qualifying exam was far less stressful, since it is a presentation about my research, which I already knew. There is less room for the unexpected in a qualifying exam.

Life as a graduate student

Quality of life as a graduate student and how you balance school, work, social, and family life

It's a see-saw. Sometimes research is extremely busy and I have a ton of deadlines and there is no balance, and other times I can breathe a little and there is time to have fun. I try to take advantage of that time when it comes.

What is your social life like and where have you lived?

I lived in San Clemente my first year, which was fun as I got to meet many grad students in a variety of departments. However, I have since moved into an off-campus apartment which I also very much enjoy. I am in an apartment complex where plenty of UCSB grad students live. Santa Barbara public transportation is great and it's easy to get around by bus. I also really appreciate the location of Santa Barbara in terms of where it is in the state of California. SB is about equidistant from both Yosemite National Park and Las Vegas. There are so many places to explore in this region of the U.S. and they are all a road trip away, which also makes SB a great place to live.

What did you do over Summer break?

This summer I stayed in SB and did research.

Advice to prospective graduate students

The typical advice is to make sure you and your advisor get along and have a good relationship, but I would say it is equally if not more important to make sure this is true for your labmates as well. They are the people you will see and interact with the most often. Being friends with them and genuinely liking them will make grad school life much more bearable. Also, after you stop taking classes, realize that there is no longer an externally imposed structure on your life. Recognize this and impose your own structure so you make sure you get things done.

Sebastian Siatkowski - Ph.D. Student in Computer Engineering

photo of Sebastian Siatkowski
  • Hometown: Wyszkow, Poland and Los Angeles, California
  • B.S. and M.S. : B.S. in Computer Engineering and M.S. in Electrical and Computer Engineering, UCSB
  • Degree Sought from UCSB and Progress: third year Ph.D. candidate
  • Advisor / Group: Professor Li-C. Wang / Mining Test and Verification (MTV Lab) data for EDA & Test applications
  • Graduate Study Area in CE: Data Mining in Test
  • Research Interests: Adaptive Test, Failure Analysis, Yield Optimization, Big Data
  • Hobbies: soccer, hiking, mixed martial arts, running, video games

Favorite things about

  • ECE department: brilliant and easily approachable professors, ocean view from our lab
  • UCSB: beautiful campus, friendly people, great recreation center
  • Santa Barbara: perfect weather year round, relaxed culture, tons of breathtaking hiking trails

Why Electrical & Computer Engineering and UCSB?

My fascination with computers began at an early age. The more I learned, the more complex and intriguing further learning became. As a high school student, I chose UCSB for the location and its prominent social scene. What got me to stay for grad school were UCSB's excellent academic standings and the beautiful campus which provides a relaxing atmosphere.

More about Sebastian and his research

  • Important Conferences Attended: the International Test Conference (ITC) and the International Conference on Computer-Aided Design (ICCAD)
  • Most important publication to date: "Yield Optimization Using Advanced Statistical Correlation Methods"
  • Master’s Thesis: "Abnormality Search for Predicting the Screenability of Customer Returns "
  • Types of financial assistance received: Graduate Student Researcher (GSR) and Teaching Assistant (TA)

Tell us about your research

Very large amounts of data are produced during manufacture and test of semiconductors, but analysis techniques applied in practice do not utilize all the information available in that data. Our research focuses on applying state-of-the-art approaches from the machine learning field to advance semiconductor testing, as well as developing novel techniques suited for the specific problems at hand. The goal of test data analysis is to find the right balance while attempting to improve quality, reduce test cost, and increase yield.

How and why did you get into your area of research?

I took Professor Li-C. Wang's courses as an undergraduate and was quickly captivated by his way of thinking and approaching problems. I reached out to him to learn about his group's research and was so fascinated by it that I eagerly decided to try to join the group and help move the research forward. I think what persuaded me the most was how clear the application of the research was to real problems.

Why did you select UCSB and the Electrical & Computer Engineering Department in regards to your research?

Doing my undergrad at UCSB exposed me to our phenomenal faculty. The professors in our ECE department are great mentors and are some of the top experts in their fields. I also looked at PhD program rankings in ECE across the country, and at the time UCSB was ranked 5th so that was a huge plus.

What do you find rewarding about your research?

Since we work closely with industry, we actually get to see our methodologies applied in practice. It's very exciting to see our ideas come to life, and getting praise from engineers for helping them solve critical problems is very rewarding. This close industry partnership is rather unique for academic research groups, which pushes us to do our best to maintain it.

UCSB prides itself on its collaborative atmosphere, give some examples of how you collaborate

From what I've seen so far, collaboration is the single most important element of successful research. The atmosphere in the ECE department is always very encouraging towards collaborating with peers and faculty. I feel very comfortable discussing my research with students from other groups, and I also find it interesting to hear about the research they are working on. Such discussions often lead to exchanges of ideas which help to uncover new perspectives of the problem at hand.

Thoughts on working in a group research environment and your experience working with an advisor

The collaborative aspect of research is what truly enables rapid and meaningful progress. I consider every single one of my group mates a good friend. We often spend time together in all kinds of social situations, and new research ideas sometimes spring up at the most unexpected times. Our advisor, Li-C. Wang, is very hands on with all our research. He is always very closely involved with all the little details of our projects and is available for consultation at virtually all times.

Where will your research take you next?

Throughout my research, I've had the privilege of working with companies which are considered technology leaders in semiconductor manufacturing. This experience has opened many doors for jobs in the industry. As of now, I believe after graduation I will go directly into industry, and I will choose the company where I feel I can make the biggest contribution.

photo of sebastian by the campus bike path

Sebastian's thoughts on the academics at UCSB

Strengths of the graduate program

The main strength has to be attributed to the outstanding faculty. The research conducted by all of their groups is cutting edge and they strive to always be the leading researchers in their fields with their continuous involvement in global research communities.

Favorite courses

Having taken most of the offered undergrad and grad courses related to Computer Engineering, it is very difficult to single one out as the favorite. I think an honorable mention definitely has to go to the CE Senior Capstone project (ECE 189B) that I took with Professor Steve Butner. That course really helped tie together a lot of the concepts learned throughout my first four years, but also made me realize how much I still didn't know which contributed to my decision to continue on to grad school.

Experience with the graduate exams

The screening exam sounded very scary at first. The idea of being orally examined by five professors sounded more stressful than any exam I had taken in the past. However, I found that with thorough preparation it was not as bad as I anticipated.

Describe your experience as a Graduate Student Researcher (GSR) and/or Teaching Assistant (TA)

I have been a GSR for almost every quarter, and I was a TA for two courses (Digital Design with VHDL & Synthesis — ECE 156A and Computer-Aided Design of VLSI Circuits — ECE 156B). The GSR experience can sometimes truly push you to your limits. It taught me a lot about self-motivation and organization, both of which are absolutely necessary to make it as a GSR. The TA experience, on the other hand, was less hectic but just as rewarding. Although I did get overwhelmed with questions at times, especially near project deadlines, the experience was always positive. It is a great feeling to have students look up to you and to be able to help them truly grasp the concepts taught in class.

Life as a graduate student

Quality of life as a graduate student and how you balance school, work, social, and family life

Work-life balance does get out of hand at times, but usually only around important deadlines. During those times, it may feel like every waking hour is spent on research. However, when there are no imminent deadlines, even as a grad student I get plenty of time to socialize and take part in fun activities. Getting the most out of life may require slightly better time management skills than back during undergrad, but it's definitely achievable.

Where have you lived while at UCSB?

I lived in IV for a while and enjoyed my stay there, but after becoming a grad student and focusing more on my work I moved to Family Housing, which is probably the best housing deal available in the area.

What will you do this summer?

This summer I will go to Phoenix, AZ for an internship. My advisor's close relationship with industry has made finding internships every summer very easy. This will be my third summer interning for research related work and I did not have to interview for any of them.

Advice to prospective graduate students

Don't get consumed by research and academics. Try surfing, check out the many hiking trails, see a movie at the drive-in theater, go wine tasting, join an adult sports league, or just try something new. Venturing beyond what you're normally comfortable with can really help with personal development which ultimately reflects back on your research.