Engineer Process
Resume:
PROCESS ENGINEER
. Over ** years of experience in high-tech process engineering
. Managed projects involving cross-functional teams towards clear and
tangible success
. Extensive knowledge and hands-on skills in solar cell development, solar
cell and module manufacturing process, magnetic recording process, thin
film deposition, plating, polishing, texture, laser texture, wash,
sputter and tape-burnish processes as well as in quality control.
. Advanced data analysis skills, expert in Design of Experiments (DOE),
Advanced Process Control (APC), SPC, Failure Mode and Effects Analysis
(FMEA), Lean Manufacturing, Ishikawa Fishbone, Failure Analysis, Yield,
Cycle Time, Cost Reduction
. Advanced problem solving skills using statistical, mathematical and
logical tools
PROFESSIONAL WORK EXPERIENCE
Miasole, San Jose, CA
2007 - 2012
Senior Process Engineer, Senior R&D Engineer
Worked as the senior cell and interconnection development engineer as well
as the senior back-end process engineer
Senior Process Engineer
. Developed the cell preparation, current collection and interconnect
mechanism from start.
. Designed a data collection and process control system which was adopted
by the entire company for other departments.
. Developed and sustained the bypass diode laser soldering and assembly
process
. Acted as the company's engineering team leader tasked to improve the
company's overall IR module yield which was at 75%. At the conclusion of
the work the yield improved to a stable greater than 99.5%.
. Repeatedly selected by management to lead yield teams in areas of serious
yield issue. At the conclusion of each work yield improved significantly
in all cases.
. Reviewed in Miasole as a gifted, result-oriented and capable engineer who
breaks down complex problems into simple addressable forms and solves
them.
Senior R&D Engineer
. Invented the solar-cell interconnect architecture
. Invented the cell current collection mechanism
. Developed the company's interconnect processes to manufacturability
. Developed and improved cell lamination process
. Discovered the significant efficiency booster materials that catapulted
Miasole to efficiency and reliability leadership. These include the
discovery of key surface treatment as well as power collection materials
by employing advanced methods of experimentation and data analysis.
MMC TECHNOLOGY, San Jose, CA
2002 - 2006
Staff Engineer
Managed Front-end Process Engineering for Mechanical and Laser Texture,
cycle time improvement, yield improvement, cost reduction, statistical
process control, sustaining
Mechanical Texture
. Developed systems to control process and process parameters and improved
yield. Case example: Provided mechanisms for the electronic detection of
texture scratches by testers
. Developed systems of controlling incoming materials. Case example:
Developed a control charted go-no-go gage for incoming diamond.
. Generated a number of solutions to address texture excursion at many
different times to the satisfaction of customers.
. Improved a number of processes over the years to gain increased yields.
. Successfully led a cross-functional team of engineers to improve product
quality.
. Led FMEA teams and successfully addressed/solved critical product issues.
. Reviewed as an outstanding Engineer.
Laser Texture
. Developed systems to maintain stable Laser Texture Process.
. Developed Ramp Laser Texture process and the mechanisms to control it.
Tape Burnish
. Helped design a new tool for a special Burnishing Process.
. Generated the electronic failure analysis algorithm for detecting tape
burnish scratch at test.
HMT/KOMAG, San Jose, CA
2000 - 2002
Senior Staff Engineer
. Studied the critical tape burnish parameters affecting yield and helped
modify equipment thereby improving yield.
. Developed a technique of quantifying tape burnish work on disk.
. Developed a technique that accurately measured carbon thickness
measurement over a chrome layer.
. Also helped in the Wash Process
WESTERN DIGITAL, San Jose, CA
1995 - 2000
Principal Engineer
Managed Front-end Process Engineering for Mechanical and Laser Texture.
Mechanical Texture
. Developed systems of process control and improved processes in multiple
areas.
. Worked as team leader in a number of product quality improvement
projects.
. Nominated as 'Best Engineer' and awarded "Innovative Engineer" in the
company's merit appreciation tradition.
. Prepared training manuals and literature and trained operators,
technicians and engineers on Mechanical Texture and Laser Texture
Processes.
Laser Texture
. Set up a state-of-the-art Laser Texture process from the ground up.
. Sustained Laser Texture processes for multiple products.
Tape Burnish (Hard Coat Burnish)
. Generated recipes, sustained and improved tape burnish process.
. Developed processes, maintained and calibrated tape burnish tools.
. Identified key tape burnish parameters affecting yield by conducting
extensive experiments. Improved yield significantly based on findings.
FAMILIARITY OR OTHER SKILLS
Program languages: Ladder Logic, VB, C
Software: CAD, Solid Works
Instruments: AFM, SEM/EDX, Optical reflectance spectroscopes, surface
probing instruments and expertise in developing metrics and methods of
measurement.
EDUCATION/CERTIFICATIONS
. Continuing Education in Theoretical Physics, Stanford University,
Stanford, CA
. SCPM, AP Management, Stanford University, Stanford, CA
. Graduate Certificate in Magnetic Recording, Santa Clara University, Santa
Clara, CA
. B.Sc. majoring in Structural Engineering, Materials Engineering minor,
Addis Ababa University, Ethiopia
PATENTS GRANTED OR PENDING
. Method of texturing a landing zone. 1999: US 5942279
. Interconnect assembly. September 2009: US 200********
. Smoothing a metallic substrate for a solar cell. September 2009: US
. Textured substrate for thin-film solar cell. Miasole October 2010: US
. Sodium-incorporation in solar cell substrates and contacts. Miasole
October 2010: US 201********
. Laser polishing of a back contact of a solar cell. Miasole October 2010:
US 201********
. Laser polishing of a solar cell substrate. Miasole October 2010: US
. Interconnect assembly. Miasole February 2010: US 201********
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