Company Filing History:
Years Active: 2014
Title: The Innovations of Hans-Ulrich Pfeiffer
Introduction
Hans-Ulrich Pfeiffer is a notable inventor based in Zurich, Switzerland. He has made significant contributions to the field of semiconductor technology, particularly in the development of laser diodes. His work has implications for various applications in electronics and telecommunications.
Latest Patents
Hans-Ulrich Pfeiffer holds a patent for a semiconductor laser diode. This innovative device comprises a semiconductor body with an n-region and a p-region that are laterally spaced apart. The laser diode features an active region situated between these two regions, which includes a front end and a back end section. The design incorporates an n-metallization layer adjacent to the n-region, which has a first injector for current injection into the active region. Conversely, a p-metallization layer is located opposite the n-metallization layer and adjacent to the p-region, featuring a second injector for current injection. The unique aspect of this invention is that the thickness and/or width of at least one metallization layer is selected to control current injection in specific parts of the active region. This arrangement leads to a substantially uniform current distribution near the front end of the active region, significantly enhancing the reliability of the laser diode.
Career Highlights
Hans-Ulrich Pfeiffer is currently employed at II-VI Laser Enterprise GmbH, where he continues to innovate in the field of laser technology. His expertise and contributions have positioned him as a key figure in the development of advanced semiconductor devices.
Collaborations
He has collaborated with notable colleagues, including Andrew Cannon Carter and Jörg Troger, to further advance the technology in his field.
Conclusion
Hans-Ulrich Pfeiffer's work in semiconductor laser diodes exemplifies the innovative spirit of modern inventors. His contributions not only enhance the reliability of laser technology but also pave the way for future advancements in the field.
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