Microsoft Office
MD SAJEEB RAYHAN
Principal Engineer, Process Validation
Austin,TX
Summary
Experienced and detail-oriented Process Development, Integration, and Validation Engineer with over 7+ years of experience in Semiconductor & MEMS field. Excellent reputation for resolving problems and improving customer satisfaction. Skilled in working under pressure and adapting to new situations and challenges to best enhance the organizational brand. Excellent communication (verbal & written) and interpersonal skills. Certified in Lean Six Sigma Green Belt.
Overview
9
9
years of professional experience
9
9
years of post-secondary education
Work History
Principal Engineer, Process Validation
Flextronics
Austin, TX
06.2020 - Current
- Authored validation protocols and reports such as Installation Qualification (IQ), Operation Qualification (OQ),Test Method Validation (TMV), and performance Qualification (PQ) for High Volume Manufacturing SMT lines, verifying compliance with internal policies and external safety and quality requirements i.e., ISO 13485
- Advised customers, vendors, and other project stakeholders on relevant technical concerns and feasible solutions
- Reviewed various plans, documents and related materials to assess projected actions and advise on changes
- Documented/Executed entire validation process, noting changes or alterations completed
- Explained highly complex information in terms easily understood by non-technical personnel
- Trained and assisted staff in validation techniques, methods and testing processes
Member of Technical Staff, Process Engineering
Array Photonics
Tempe, AZ
11.2019 - 05.2020
- Contributed and collaborated as a Process Development & Integration Engineer at Semiconductor R&D (clean room) environment to fabricate GaAs based Photodiodes and Lasers (EELs and VCSELs) operating beyond 13xx nm for next generation consumer, commercial 3D, and proximity sensing applications
- Collaborated with Equipment Vendors during equipment installations and streamlined process recipes for various fabrication processes including reactive ion etch (RIE) processes, PECVD, photolithography
- Contributed toward manufacturing readiness through documentation (SOP/WI, SPC, OCAP, FMEA, PM, etc.) for RIE processes
- Established project schedules and monitored tasks to meet milestones during each phase
- Reviewed processes with cross-functional teams and identified areas that required improvement
- Performed SEM at the ASU NanoFab facility in Arizona State University as a Research Scholar to investigate the quality of etched films i.e., surface profile, sidewall profile, undercut, etc.
Senior Process Engineer
Finisar
Sherman, TX
07.2018 - 05.2019
- Improved die yield and wafer mapping functionalities and reduced defects at various steps of manufacturing process flow of VCSELs (for Facial ID Recognition applications) in High Volume semiconductor manufacturing facility
- Spearheaded Automated Optical Inspection (AOI) 'Process /Technology Transfer' successfully from one High Volume manufacturing (HVM) facility to Sherman HVM facility
- Created series of process optimizations to improve low yield, reduce defects, and increase quality
- Achieved customer defect/process specifications in the existing/new recipes in a timely manner and improved die yield by ~15% from the Learning cycle(s) phase to Ramp up phase
- Established project schedules and monitored tasks to meet milestones and alleviate issues
- Supported Operations in the clean room Fab for ~75% of daily working hours and performed on-call duties when required in the 24×7 manufacturing facility
Process Development and Integration Engineer
TDK Electronics (Tronics MEMS)
Addison, TX
04.2017 - 03.2018
- Performed various fabrication processes including thermal oxidation, wet etching, resist strip, wet clean, inspection/metrology, etc. in Class 100 Silicon Wafer Fabrication (clean room) facility
- Optimized, qualified, and sustained various MEMS processes to manufacture unique MEMS sensors
- Provided support to Operations for process related troubleshooting to sustain process, improve yield and product quality
- Prepared manufacturing documentation for different MEMS processes and provided training to operation personnel
- Performed as a “Project Lead” in multiple MEMS projects, collaborated with cross-functional teams to achieve project goals, and helped the team to ship final products to customers in a timely manner
- Contributed in establishing control charts and designing of experiments (DOE)
Graduate Research and Teaching Assistant
Nanotechnology Research Center, UT Arlington
Arlington, TX
09.2011 - 08.2016
- Designed, Fabricated, and Characterized surface micro-machined Aluminium nitride (AlN) based piezoelectric micro-cantilevers for flexible MEMS pressure sensing applications
- Designed, simulated, and analyzed thin AlN based MEMS piezoelectric fingerprint sensors for high resolution (i.e., 725 dpi and 1016 dpi) fingerprint detection
- Designed, simulated, and analyzed thin AlN based MEMS piezoelectric accelerometer for airbag applications in automobiles and aircrafts
- Performed statistical, qualitative and quantitative analysis
- Oversaw groups of over 100+ students and assisted with academic projects
- Contributed to professionally-written scientific paper for publication
Education
Ph.D. - Electrical Engineering
The University of Texas At Arlington
Arlington, TX 09.2011 - 09.2016
Bachelor of Science - Electrical Electronic & Communication Engineering
Military Institute of Science And Technology
Dhaka, Bangladesh 01.2006 - 12.2009
Skills
Thin Film Deposition
Photolithography
Wet and Dry Etching
Process Engineering
Semiconductor Device Physics
Electrical Characterization
Material Characterization
PCBA Manufacturing
JMP
Minitab
Matlab
MEMS Sensors
Optical Inspection and Metrology
Project Management
Design, 3D modeling, and Simulation
Lean Six Sigma
Software
PSpice
LabView
Python
JMP
Minitab
MatLab
Timeline
Principal Engineer, Process Validation
Flextronics
06.2020 - Current
Member of Technical Staff, Process Engineering
Array Photonics
11.2019 - 05.2020
Senior Process Engineer
Finisar
07.2018 - 05.2019
Process Development and Integration Engineer
TDK Electronics (Tronics MEMS)
04.2017 - 03.2018
Graduate Research and Teaching Assistant
Nanotechnology Research Center, UT Arlington
09.2011 - 08.2016
Ph.D. - Electrical Engineering
The University of Texas At Arlington
09.2011 - 09.2016
Bachelor of Science - Electrical Electronic & Communication Engineering
Military Institute of Science And Technology
01.2006 - 12.2009