[Skip to main content](#main-content) [ OpenNash ](https://opennash.com/) / [Jobs](https://jobs.opennash.com/) [ 01 Search jobs](https://jobs.opennash.com/search/)[ 02 Companies](https://jobs.opennash.com/explore/)[ 03 Hiring report](https://jobs.opennash.com/reports/hiring/)[ 04 AI assistants](https://jobs.opennash.com/connect/)[ 05 How it works](https://jobs.opennash.com/methodology/) Renesas Electronics · Nakatsu, Japan # Semiconductor Assembly Process Technology Development Engineer Nakatsu, Japan Full-time Manufacturing & Production Listed on Renesas Electronics’s official careers site. Posted October 22, 2026. Check that it is still open and apply there. [Apply on Renesas Electronics’s careers site →](https://jobs.smartrecruiters.com/RenesasElectronics/744000157043769-semiconductor-assembly-process-technology-development-engineer) [OpenNash Jobs](https://jobs.opennash.com/) / [Renesas Electronics](https://jobs.opennash.com/companies/renesas-electronics/) / Semiconductor Assembly Process Technology Development Engineer ## Job description You will be responsible for technology development tasks in the assembly and packaging of advanced semiconductor packages for AI, HPC (High Performance Computing), automotive, and IoT advanced semiconductor packages (such as Flip Chip Scale Package, Flip Chip Ball Grid Array, and Power Semiconductor Package). Development, equipment selection and implementation of assembly technologies for advanced packages such as VPS, FCOSP, and FCBGA Development and improvement of materials and processes for assembly processes (Molding, Ball mount, Marking, PKG saw) - Support for Launching and Transitioning to Mass Production Lines - Process quality and yield improvement activities Reason for Hiring: Our company is driving innovation in semiconductor packaging technologies, including Flip Chip, SiP, VPS, FCOSP, and FCBGA. As demand continues to grow in AI, HPC, automotive, and IoT applications, advanced packages with higher density, improved thermal performance, and greater reliability are becoming increasingly important. To support the rapid expansion of these technologies, we are seeking experienced engineers in semiconductor assembly and packaging processes. In this role, you will contribute to the development of next-generation packages for AI/HPC, ADAS, and other advanced applications, from package design and process development to product launch. This is an excellent opportunity to work on cutting-edge semiconductor technologies and play a key role in shaping future innovations. ## Qualifications ### Required Qualifications Over - 5 years of experience in technology development in semiconductor back-end processes (assembly and packaging) Over - 5 years of technical development experience in any of the processes of Ball Mount, Reflow, Flux cleaning, or Marking Practical experience in process improvement, quality control, and equipment introduction Technical degrees (mechanical, materials, electronics, chemistry, etc.) Business-level proficiency in both Japanese and English ### Preferred Qualifications Practical experience in analyzing and improving defects using FTA, 5 Whys, etc. in subsequent processes Experience in material development such as material selection and optimization Experience in CAD design, including jigs and tool design and optimization Knowledge of semiconductor technology standards such as IATF and JEDEC Practical experience as a PM in product development ## At a glance - Posted by the employer: Oct 22, 2026 - First seen by OpenNash: Oct 26, 2026 - Last checked: Nov 2, 2026 - Listed for: 11 days - Location: Nakatsu, Japan - Employment type: Full-time[Apply on Renesas Electronics’s careers site →](https://jobs.smartrecruiters.com/RenesasElectronics/744000157043769-semiconductor-assembly-process-technology-development-engineer) ## Hiring at Renesas Electronics - Open jobs: 774 - New in the last 7 days: After two weekly collections - Tracked since: Oct 12, 2026 [All Renesas Electronics jobs](https://jobs.opennash.com/companies/renesas-electronics/) · [Weekly hiring report](/reports/hiring/) ## More jobs at Renesas Electronics ### [Assembly Process Manufacturing Engineer for Back End Fab](https://jobs.opennash.com/companies/renesas-electronics/jobs/30271cd6fe95a13db02d/) Nakatsu, Japan ### [Semiconductor Assembly Process Technology Development Senior Engineer](https://jobs.opennash.com/companies/renesas-electronics/jobs/c5bd7c53c2896b8e46e3/) Nakatsu, Japan ### [半導体生産システム開発エンジニア（1）](https://jobs.opennash.com/companies/renesas-electronics/jobs/2b1c45fc3ab4f76695ba/) Nakatsu, Japan ### [半導体生産システム開発エンジニア（2）](https://jobs.opennash.com/companies/renesas-electronics/jobs/1296e139fd77ec8cd171/) Nakatsu, Japan ### [半導体組立工程 技術開発エンジニア](https://jobs.opennash.com/companies/renesas-electronics/jobs/8494286796f4677faccc/) Nakatsu, Japan ## Similar jobs at other companies ### [Application Solutions, Semiconductor Process and Device Simulations (TCAD)](https://jobs.opennash.com/companies/siemens/jobs/f67c235bc95278628480/) Siemens ### [Software Engineering, Semiconductor Process and Device Simulators](https://jobs.opennash.com/companies/siemens/jobs/62c90573420bf03c52af/) Siemens ### [Internship - Unit Process Development Pre-Assembly](https://jobs.opennash.com/companies/infineon-technologies/jobs/a53de9218a7af6ec61b5/) Infineon Technologies · Melaka ### [Foundry Engineer for Advanced Technology (Device/Process/ Product)](https://jobs.opennash.com/companies/qualcomm/jobs/633d7c17ba43c8ce7573/) Qualcomm · Hsinchu City, Taiwan ### [Process and Technology SME - SAP Material Management](https://jobs.opennash.com/companies/eaton/jobs/6fafaee33096ed11e0cc/) Eaton · Budapest, HUN OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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