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At ISTFA, Rosine GERMANICUS presented a paper about "SiC MOSFET micro-explosion due to a Single Event Burnout: analysis at the device and die levels". We at JPK Group are proud that we could support this paper with sample preparations conducted with a micro milling tool from our principle ULTRA TEC.

Please contact us for the complete paper or interest in Failure Analysis, Sample Preparation or FA Workshop on January 31, 2024 in Munich.


For device qualification in harsh environments (space, avionic and nuclear), radiation testing identifies the sensitivity of the devices and technologies and allows to predict their degradation in these environments. In this paper, the analysis of the electrical characteristics and of the failure of a commercial SiC MOSFET after a Single Event Burnout (SEB) induced by proton irradiation are presented. The goal is to highlight the SEB degradation mechanism at the device and die levels. For failed devices, the current as a function of the drain-source bias (VDS) in off-state (VGS=0V) confirms the gate rupture. For the die analysis, Scanning Electron Microscopy (SEM) investigations with energy-dispersive X-ray spectroscopy (EDX) analysis reveals the trace of the micro explosion related to the catastrophic SEB inside the SiC die. With a fire examination, similar to a blast, the SEM analysis discloses damages due to the large local increase of the temperature during the SEB thermal runaway, leading to the thermal decomposition of a part of the SiC MOSFET and the combustion with gaseous emissions in the device structure.

The JP Kummer Group is glad to introduce our new partner eInnoSys






eInnosys is a leading provider of automation and software solutions for the manufacturing industry. With a focus on Factory & Assembly Automation, Equipment Software, Industry 4.0, AI/ML, and predictive maintenance, the company has developed innovative and patented products in these areas. As a leader in the field of smart manufacturing and industrial automation, eInnosys specializes in upgrading legacy equipment and implementing predictive maintenance solutions to drive efficiency and productivity. The company’s expertise in AI/ML enables them to analyze data and provide predictive insights, helping their clients to stay ahead of the competition.

We have plant holidays from December 24, 2022 to January 01, 2023. During this time our office is not manned and no dispatch takes place. We will be happy to process your inquiries and orders again from January 02, 2023

We are grateful for the successful cooperation with our partner Wentworth Laboratories and the trust placed in us, so that we can also offer their products in the Netherlands in the future.

We look forward to many more projects!

We have plant holidays from December 24, 2021 to January 10, 2022. During this time our office is not manned and no dispatch takes place. We will be happy to process your inquiries and orders again from January 10, 2022.


We are proud to announce that nTact/ FAS Holdings Group was recently selected by the DOE for a Perovskite-Silicon Tandem Cell Development Project.

Please find more information in Area 2 Manufacturing an R&D:

Solar Energy Technologies Office Fiscal Year 2020 Perovskite Funding Program | Department of Energy

We are sorry to announce the passing of our dear friend and the founder of our group of companies, Hans-Peter ‘John’ Kummer.

John was legendary in the semiconductor equipment business and was known and respected around the world. He founded John P Kummer AG in Zug, Switzerland in 1975 and the rest, as they say, is history.

John: Your warmth, wisdom and diplomatic skills will never be replaced.

John Kummer
26.04.1927 – 03.04.2021

We are closed from 24th of December until 6th of January 2021.

We wish you all a Merry Christmas and a successful New Year!

Thank you very much for your support and cooperation this year.


The John P. Kummer Group is glad to introduce our new partner Toho Technology Inc.

Toho delivers precision industrial and life-science technologies that enhance business and lives.

Please contact us for more information

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