Dubravko Sunjerga

General Manager bokTECH GmbH & Co. KG

Greater Munich Metropolitan Area

About

With more than 20 years of hands-on experience in quartz glass manufacturing, processing and engineering, I specialize in turning complex quartz requirements into reliable, production-ready solutions. My focus covers laser processing of quartz glass, CNC machining, precision welding, measurement & quality validation, as well as design-for-manufacturing for demanding semiconductor and high-tech applications. Prior to founding bokTECH, I spent over a decade at SemiQuarz, where I was deeply involved in quartz component manufacturing, cold machining, construction and production leadership. This background shaped my understanding of quartz not just as a material, but as a critical process component within semiconductor and advanced manufacturing environments. At bokTECH, we combine deep material expertise with practical manufacturing know-how – from prototype to series production. Our work is driven by precision, process understanding and long-term reliability rather than short-term fixes. I strongly believe that successful quartz solutions emerge where engineering, manufacturing and application knowledge meet – and where partnerships are built on technical trust.

Experience

  • Geschäftsführer General Manager at bokTECH GmbH & Co KG
    Jan 2023 - Present · 3 yrs 6 mos

  • Technischer Projektmanager at SemiQuarz Holding
    Oct 2021 - Dec 2022 · 1 yr 3 mos

    Responsible for managing technical projects at the interface of engineering, production and customers. Focus on coordinating complex quartz glass components, aligning design, manufacturing and quality requirements. Acted as a central link between customers, internal teams and production, ensuring feasibility, process stability and on-time delivery.

  • Betriebsleiter at Der Lasermann GmbH Laser Materialbearbeitung Laser
    2021 - Oct 2021 · 10 mos

    Responsible for operational management of laser-based material processing. Focus on production planning, process stability and quality in industrial laser applications. Gained hands-on experience in laser processes and shopfloor-oriented leadership.

  • Head of Manufacturing – Cold Processing & Design at SemiQuarz GmbH
    2007 - Oct 2021 · 14 yrs 10 mos

    Responsible for cold processing and design of high-precision quartz glass components over a period of nearly 15 years. Led manufacturing operations, construction and continuous process improvement for complex quartz parts used in semiconductor and high-tech applications. Deep involvement in CNC machining, design-for-manufacturing, quality requirements and long-term process stability.