Anjula Kosswattaarachchi
Troutdale,OR
Summary
Dedicated Semiconductor Process Engineer with over 5 years of experience in the semiconductor industry. Special knowledge in Chemical Mechanical Planarization (CMP). Proven track record in optimizing manufacturing processes to enhance efficiency and yield. Skilled in process development, equipment troubleshooting, and quality control. Seeking to leverage expertise in a challenging role that offers opportunities for professional growth and advancement.
Overview
16
16
years of professional experience
Work History
Process, Integration and Yield Engineer
Intel Corporation
Hillsboro, OR
09.2019 - Current
- Specialized in sustaining and optimizing semiconductor manufacturing processes, ensuring high performance and reliability.
- Debugged/resolved multiple defect issues in Chemical Mechanical Planarization Processes (CMP), implemented improvements/corrective actions, leading to enhanced production efficiency and reduced downtime leading to ultimate improvement of yield in the Intel's advanced 10 nm and 7 nm semiconductor technology.
- Conducted detailed root cause analysis and troubleshooting of CMP-related defect issues, leading to decrease in process variations by 40% and increased throughput by 5%.
- Spearheaded efforts to enhance manufacturing availability (MA) of CMP tools (AMAT PLM and PLI tools) by at least 2% and work content reduction for technicians by >10hr/week.
- Demonstrated the "quality" Intel value by streamlining scrap management practices across virtual factory (VF), which resulted in saving wafer scraps ~2W/week.
- Led the enhancement of the Full Vision (FV) algorithm, resulting in a 70% reduction in the End-of-Line failure results.
- Analyzed complicated data and determined data-driven solutions for day-to-day problems in semiconductor manufacturing process.
- Established strong working relationships with clients through exceptional communication skills, fostering trust and collaboration.
- Wrote, reviewed and edited technical document in accordance with template requirements.
- Implemented automation improvements to streamline daily operations and sustain process stability, leading to increased efficiency and reduced manual efforts.
Graduate Research Assistant
University at Buffalo
Buffalo, NY
08.2014 - 05.2019
- Explored molecular species as novel charge-carriers for redox flow batteries
- Applied electrochemical characterization methods including cyclic voltammetry, bulk electrolysis, electrochemical impedance spectroscopy, rotating-disk voltammetry, and spectroelectrochemistry towards identification and analysis of redox active molecules
- Invented a novel method to enhance energy-capacity of non-aqueous redox flow batteries by 95% via mixing redox active species, which had the effect of increasing the overall concentration and the number of electrons transferred
- Developed expertise in inorganic, organometallic, and coordination complexes synthesis
- Specialized in NMR, UV-vis, IR spectroscopy, and mass spectroscopy as well as anaerobic techniques
- Collaborated with cross-functional teams to achieve far-reaching objectives
- Communicated project findings at group meetings, collaborative teams, department seminars, and national conferences, and peer-reviewed scientific journals
- Assisted in grant-writing to secure funding for diverse research projects
- Independently designed new projects, mentored, managed, and supervised undergraduate research activities
- Maintained the potentiostat and conducted troubleshooting.
Research Scientist
Sri Lanka Institute of Nanotechnology
03.2012 - 07.2014
- Developed titanium dioxide based photocatalytic nanocomposites as fabric coating with stain removal properties under both UV and vis lights
- Researched on odor management in polyester garments
- Synthesized and characterized nanoparticles and materials using XRD, TEM, SEM, AAS, Particle size analyzer, TGA and ATR-FTIR-Raman techniques
- Evaluated the effect of pH, sonication, surfactants, and concentration on the softening of fabric softeners
- Assessed graphene oxide based nanomaterials as coatings for hydrophobic textiles
- Cooperated with external teams from leading textile companies to extend the lab scale developments to industry level
- Prepared, reviewed SOP, validation, and stability documents
- Presented research progress regularly at internal and external meetings
- Played a key role in preparing and presenting proposals to obtain research projects to the company.
Undergraduate Research Scientist
University of Colombo
03.2008 - 04.2012
- Synthesized and characterized iron oxide nanoparticles functionalized with silica for DNA purification.
Education
Ph.D. in Chemistry -
University at Buffalo
Buffalo, NYB.Sc. in Chemistry -
University of Colombo
Colombo 03, Sri LankaLL.B. -
University of London
London, UKSkills
- Semiconductor Manufacturing Processes
- Equipment Maintenance and Troubleshooting
- Process optimization and improvement
- Data analysis (using statistical analysis tools like JMP) and statistical process control (SPC)
- Yield Enhancement and Quality Control
- Project Management and Cross-functional Collaboration
- Cleanroom Protocol and Safety Standards
- Working under pressure and in dynamic working conditions
- Strong attention to detail and the ability to learn on the job
- Excellent written/verbal communication and presentation skills
Conferenceproceedings
- A.M. Kosswattaarachchi, T.R. Cook, "Repurposing an Industrial Dye, Methylene Blue, as an Active Component for Redox Flow Batteries," 256th American Chemical Society National Meeting and Exposition, Boston, USA. (2018)
- A.M. Kosswattaarachchi, T.R. Cook, Chemistry Graduate Student Symposium, "Repurposing an Industrial Dye, Methylene Blue, as an Active Component for Redox Flow Batteries," University at Buffalo, USA. (2018)
- A.M. Kosswattaarachchi, T.R. Cook, "Concentration-dependent charge-discharge characteristics of Non-aqueous Redox Flow Batteries," 2nd Western New York Inorganic Symposium, Cornell, USA. (2017)
- A.M. Kosswattaarachchi, A.E. Friedman, T.R. Cook, Chemistry Graduate Student Symposium, "Developing new electrolyte materials for redox flow batteries," University at Buffalo, USA. (2016).
- A.M. Kosswattaarachchi, A.E. Friedman, T.R. Cook, "Developing new electrolyte materials for redox flow batteries," 252nd American Chemical Society National Meeting and Exposition, Philadelphia, USA. (2016)
- A.M. Kosswattaarachchi, R.M. De Silva, C. Chandrasekharan, K.M.N. De Silva, "Synthesis of iron oxide nanoparticles functionalized with silica for DNA purification," First National Nanotechnology Conference, Sri Lanka. (2012)
Honors and Awards
- Logic Technology Development Area Recognition Award in recognition of the outstanding demonstration of the Quality Intel value by establishing a unified scrap methodology across VF.
- Logic Technology Development CMP Area Recognition Award in recognition of the outstanding contributions to implement an improved FV algorithm which improved EOL failure rate by 70%.
- Logic Technology Development Department Divisional Award in recognition of the outstanding contribution to eliminate a certain qual at 10 nm CMP process, which enabled MA improvement and >10hr/week MT and engineering work content reduction.
- Silbert Fellowship Fall 2018, Department of Chemistry, University at Buffalo. Awarded yearly to a UB graduate student meeting the qualifications of outstanding scholarship and character.
- Graduate Student Highlight at the Department of Chemistry at University at Buffalo - February 2018.
Publications
- Kosswattaarachchi, A. M.; VanGelder, L. E.; Nachtigall, O.; Hazelnis, J.P.; Brennessel W.W.; Cook, T. R.; Matson, E. M., Transport and Electron Transfer Kinetics of POlyoxovanadate-Alkoxide Clusters. Journal of the Electrochemical Society 2019, 166, A464-A472
- Kosswattaarachchi, A. M.; Cook, T. R., Repurposing the Industrial Dye Methylene Blue as an Active Component for Redox Flow Batteries. ChemElectroChem Just accepted (doi:10.1002/celc.201801097)
- Kosswattaarachchi, A. M.; Cook, T. R., Mixed-Component Catholyte and Anolyte Solutions for High-Energy Density Non-Aqueous Redox Flow Batteries. Journal of The Electrochemical Society 2018, 165 (2), A194-A200
- VanGelder, L. E.; Kosswattaarachchi, A. M.; Forrestel, P. L.; Cook, T. R.; Matson, E. M., Polyoxovanadate-alkoxide clusters as multi-electron charge carriers for symmetric non-aqueous redox flow batteries. Chemical Science 2018, 9 (6), 1692-1699
- Kosswattaarachchi, A. M.; Cook, T. R., Concentration-dependent charge-discharge characteristics of non-aqueous redox flow battery electrolyte combinations. Electrochimica Acta 2018, 261, 296-306
- Tsitovich, P. B.; Kosswattaarachchi, A. M.; Crawley, M. R.; Tittiris, T. Y.; Cook, T. R.; Morrow, J. R., An FeIII Azamacrocyclic Complex as a pH-Tunable Catholyte and Anolyte for Redox-Flow Battery Applications. Chemistry - A European Journal 2017, 23 (61), 15327-15331
- Kosswattaarachchi, A. M.; Friedman, A. E.; Cook, T. R., Characterization of a BODIPY Dye as an Active Species for Redox Flow Batteries. ChemSusChem 2016, 9 (23), 3317-3323
Timeline
Process, Integration and Yield Engineer
Intel Corporation
09.2019 - Current
Graduate Research Assistant
University at Buffalo
08.2014 - 05.2019
Research Scientist
Sri Lanka Institute of Nanotechnology
03.2012 - 07.2014
Undergraduate Research Scientist
University of Colombo
03.2008 - 04.2012
Ph.D. in Chemistry -
University at Buffalo
B.Sc. in Chemistry -
University of Colombo
LL.B. -
University of London