ahmed medhat

I am a highly skilled Optical Coating Engineer and Thin Film Process Engineer with 8 years of international experience across Egypt, the Netherlands, and Türkiye. Holding a B.A. in Sciences and Physics from Ain Shams University, I specialize in the design, modification, and implementation of high-vacuum coating processes, including Anti-Reflection (AR), High-Reflection (HR), Mirrors, beam splitters, and Optical Filters. I possess advanced expertise in Physical Vapor Deposition (PVD) techniques, including Thermal Evaporation, Electron Beam Gun (EBG), and Ion-Assisted Deposition (IAD). In my current role as a Senior Thin Film Coating Engineer, I led production optimization efforts that resulted in a 15% increase in coating reliability and a 21% boost in production efficiency. I have successfully reduced downtime by 10% and scaled thin-film technologies for high-volume production environments. My expertise also extends to ERP systems, factory tracking, process control systems, and BOM optimization, with Lean Six Sigma, and 5S for driving operational efficiency and ensuring compliance with ISO and MIL standards. As an optical coating engineer, I am deeply committed to continuous process improvement, quality assurance, and lean manufacturing principles. As a Thin Film Specialist, I collaborate cross-functionally with teams to drive innovation, mentor junior engineers, and implement best practices that enhance product performance and quality. With a combination of technical expertise, leadership skills, and a passion for thin-film coatings, I am driven to create impactful innovations and elevate industry standards.

MEDIOR RESEARCHER "Thin Film Process Engineer Optical Coating" TNO

• Develop and optimize the production process for thin films in a large volume production. designs/develops coatings for new products, Thin film technology knowledge and actively contribute to the development of processes for new ,or modify old process. • Develop a new thin film manufacturing processes definition of DOE’s, characterization of layers. • Support and guide the development and industrialization of deposition technologies for extremely thin layers. • Effectively use characterization methods to measure/characterize thin films during the stages of the manufacturing process and correlate analysis results with the product performance. Supports optical design engineers and R&D department. • Evaluation of the product performance of the coatings by environmental testing and its performance • High knowledge level on Thin film technology and materials (properties, processing, interfaces, characterization, metrology). • Ability to cover process development ranging from research phase, development phase, pilot production to ramp up in high volume production. Perform detailed vacuum system characterization which will include optical coating evaluation • Experience in PVD processes including electron beam, IAD, sputter processes. • Experience designing a variety of coatings, including anti-reflective, high reflectors, beam splitters, filters and laser coatings • Adept at designing various wavebands, including visible, Near Infrared, Midinfrared, and Long-wave infrared.

Optical Coating and Thin Film Engineer/process Engineer Arab International Optronics AIO ( Egyptian Ministry of Defence )

Thin film technology knowledge and contribute to create new process for new projects and modify old process as well. • Adjustment to achieve the required and refinement of coating. experience in achieving of AR &HR vacuum coating. • Help in operate the improvements process needed for manufacturing of existing coatings in a coating machines • using characterization methods to measure thin films during the stages of the manufacturing process and modify analysis results with the product performance. • Test the product performance of the coatings by functional testing such as spectrophotometer or Spectroscopic ellipsometry. • High knowledge level on Thin film technology and materials (properties, processing, interfaces and operations) • Experience in using "The Essential Macleod thin film design coating " program in bands (Infra-Red, Visible, Ultraviolet)

The ability to use evaporated deposition material( dielectric/ metal).Experience in optical coating machines. • Expert with all parts and components of optical coating machines whether (software - mechanically - maintenance). Expertise in the Evaporation sources ( Electron Beam Gun Source {E.B.G}or Thermal source (Low Voltage) with the help of (ION Source Gun Filament (IAD) - Glow discharge).Good knowledge in the use of sensors on the thin layer on the surface (OMS –Xtal). • Substrate preparation, critical cleaning and preparing lenses for the process coating. • Spectral measurements such as Perkin Elmer & ARTA Instrument Lambada 900&950 for UV Viable NIR. • Create Reports to the direct manager. Assistant inspector of inspection and quality reports. • Ability to work in Clean room &Analyses and documents the experimental results. • Stabilizes and improves existing production processes. Develops and implements new processes .create planes coating. • Create requirement specifications for machines and equipment for production of new products • Solves coating production problems by working with the production team technicians to ensure preparation and reviews of coating designs. and Training technicians &Test & Inspection Requirements. Commitment to ISO procedures and policies.

• Premaster Degree in Physics Ain Shams University
• Bachelor of Science - Department Physics (BAs) Ain Shams University
• Understanding Scratch and Dig Specifications and surface inspection workshop and Drawing Savvy Optics Corp USA
• SIX SEGMA course Online Courses
• Management and Leadership Course American University in Cairo (AUC)