„True vertical GaN high speed switching transistors for direct diode laser driving (PioneerGaN)”

Project co-financed by National Centre for Research and Development; The first  Polish-Berlin bilateral co-operation Call in Photonics


The Polish side project’s value: PLN 3 302 052.60
The NCBiR co-financing value: PLN 1 562 754.97
Project’s time frame: 01/01/2016 - 31/12/2018

Project Partners:

Ferdinand Braun Institut, Berlin, Germany – Project’s Leader from the German side
Sentech Instruments GmbH, Berlin, Germany
Polski Ośrodek Rozwoju Technologii – The consortium’s leader from the Polish side
Seen Semiconductors sp. z o. o.

Fulfilling the PioneerGaN’s goal GaN based field effect vertical transistors were manufactured. The mono-crystal free-standing ammono-thermal GaN was used as the substrate material. The high speed switching transistors vertical construction allows for its integration with a laser diode. The two device microstructure allows for the laser work in the pulse mode which in turn offers an advantage in the form of high brightness and high beam quality combined with lower thermal effect, ensuring longer laser’s life-time and work quality. With the use of the stepper lithography technology it was possible to obtain the 400mm/mm2 gate length to device area ration. This translates to the 100A – 250A current range and the 70V break-down voltage for the transistor.

The above features enable the device to be applied in many new optoelectronical areas e.i. LIDAR (Light Detection And Ranging) systems, spectroscopy in various areas, medicine, pico-projectors, laser TVs, multi-platform laser displays, where the availability of high optical power is paramount.

More information about the project can be found at tel.: 22 625 12 25, or at the beneficiary email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Important links:
Program’s documentation site: www.ncbr.gov.pl/programy/programy-miedzynarodowe/wspolpraca-dwustronna/
Intermediate Body – The National Centre for Research and Development (NCBiR): www.ncbr.gov.pl
Project Leader – Polski Ośrodek Rozwoju Technologii: www.port.org.pl