Ferdinand-Braun-Institut für Höchstfrequenztechnik

The Ferdinand-Braun-Institut für Höchstfrequenztechnik (FBH) researches cutting-edge technologies in the fields of microwaves and optoelectronics. It develops high-frequency devices and circuits for applications in communications and sensor technology as well as high-power diode lasers for materials processing, laser technology, medical technology and high precision metrology.

The FBH is an internationally recognized competence center for III/V-compound semiconductors. It operates industry-compatible and flexible clean room laboratories with vapor phase epitaxy units and a III/V-semiconductor process line. The work relies on comprehensive materials and process analysis equipment, a state-of-the-art device measurement environment, and excellent tools for simulation and CAD. In close cooperation with industry, its research results lead to cutting-edge products. The FBH also succeeds in turning innovative product ideas into spin-off companies.

The Ferdinand-Braun-Institut is member of the Leibniz Association and belongs to the Forschungsverbund Berlin e.V. It has 150 members of staff, more than 70 of which are scientists.

Research Topics

Microwaves

• Gallium arsenide electronics with heterojunction bipolar transistors: monolithic microwave integrated circuits (MMICs) up to 80 GHz and power transistors up to 10 GHz
• Indium phosphide electronics: integrated circuits (ICs) for 80 Gbit/s optical transmission systems
• Gallium nitride electronics: microwave power transistors up to 10 GHz (power: >> 10 Watt)

Optoelectronics

• High-power, high-brightness diode lasers at 0.6 - 1.2 µm
• High brilliance diode lasers: linewidth < 10 MHz
• Semiconductor disc lasers
• Hybrid integrated laser systems

Competence & Comprehensive Services

The FBH develops high-value products and services for its partners in the research community and industry which are tailored precisely to fit individual needs. The institute offers its international customer base complete solutions and know-how as a one-stop agency - from design to ready-to-ship modules.

• Development and realization of III/V-semiconductor processes
• Epitaxial III/V-semiconductor layers according to customer´s needs
• Realization of devices and MMIC prototypes up to 80 GHz, small-scale production
• Electromagnetic simulation and design for microwave packaging
• Microwave measurements up to 110 GHz, high power measurements from 1 to 10 GHz
• Development of "tailor-made" diode lasers - up to small-scale productions
• Reliability testing of high-power diode lasers
• Development of modules for hybrid integrated laser systems