Ruselectronics has developed its own varactors
The holding company has mastered the import substituting production of semiconductor diodes
Ruselectronics began to produce varactors Russian production to replace imported articles, used in the Russian electronic equipment.
In Tomsk Institute of semiconductor devices (NIIPP) of the holding company Ruselectronics developed silicon and GaAs varactors. According to their electrical parameters (capacitance, the overlap factor), they are not inferior to foreign analogues, and in some ways surpass them. In particular, the Russian GaAs devices have better performance on quality factor: its value reaches 1000 or more at a frequency of 50 MHz.
NIIPP developed the varactors in two versions – for the attachment and surface mounting. Institute engineers have changed the approach to the design and production of epitaxial structures, thereby reducing the manufacturing process of the varactors to increase the reproducibility of the parameters and the yield rate of products.
New design GaAs varactors are protected by Russian patent.
For the developments of NIIPP has received the National award in the field of import substitution "Priority 2016" in the category "electronics".
A varicap is a semiconductor diode that changes its capacitance proportional to the reverse applied voltage from a few to hundreds of picofarads. The varactors are convenient because, applying a constant bias voltage, can be remotely and almost bezynertsionnoj to change their capacity. The varactors are used for frequency tuning resonant circuits and filters, amplification and generation of microwave signal and locked loop.
NIIPP is one of the leading Russian developers and manufacturers of devices on the gallium arsenide has technological lines for silicon, III-V compounds, in-house production of photomasks and epitaxial structures, a wide range of measuring equipment.