This inventor holds 3 USPTO granted patents. Top assignees: Asea Brown Boveri Inc., Asea Brown Boveri Ag. Active years: 1994-1997.
Company Filing History:
Years Active: 1994-1997
Title: Klas Lilja: Innovator in Power Semiconductor Technology
Introduction
Klas Lilja is a notable inventor based in Fislisbach, Switzerland. He has made significant contributions to the field of power semiconductor technology, holding a total of 3 patents. His work focuses on optimizing semiconductor components to enhance performance and efficiency.
Latest Patents
One of Klas Lilja's latest patents is for a power semiconductor component with a transparent emitter and stop layer. This innovation allows for a significant reduction in the thickness of the semiconductor substrate while optimizing switching losses. The design includes a transparent emitter and a stop layer, making it applicable in various semiconductor switches such as IGBT, MCT, or GTO, as well as in diodes.
Another notable patent is for a controlled turn-off power semiconductor device. This device is subdivided into unit cells and features a five-layer structure in a p-n-p-n-p sequence. It includes a p-type emitter layer, an n-type base layer, a p-type base layer, an n-type emitter layer, and a p-doped contact region. The design prevents breakdown during turning-off, effectively avoiding current filamentation.
Career Highlights
Klas Lilja has worked with prominent companies in the industry, including Asea Brown Boveri Inc. and Asea Brown Boveri AG. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.
Collaborations
Throughout his career, Klas has collaborated with notable professionals such as Kenneth Johansson and Thomas Stockmeier. These collaborations have further enriched his work and contributions to the field.
Conclusion
Klas Lilja is a distinguished inventor whose work in power semiconductor technology has led to significant advancements. His patents reflect a commitment to innovation and efficiency in semiconductor design.

