At the Innoprom-2022 exhibition, the Ruselectronics holding, Rostec State Corporation, has presented a single-crystalline silicon prototype produced using only Russian materials. The technology will allow to phase out foreign raw materials used to manufacture electronic power devices.
The material production involves several stages. First, monosilane is synthesized from metallurgical grade silicon powder or silicon dioxide, and then polycrystalline silicon is further produced. This is the semi-finished product used as the basis for single-crystalline silicon.
The technology has been developed by RPE Saliut, Ruselectronics holding, together with the Institute for Physics of Microstructures RAS and Institute for Chemistry of High-Purity Substances RAS at the request of the Ministry of Industry and Trade of the Russian Federation.
“Rostec has developed an in-house process using Russian materials to produce single-crystalline silicon with a resistivity higher than 1000 Ohm-centimeters. Thus, foreign raw materials used in silicon slices for power devices, e.g. transistors, thermistors, power rectifiers, may be completely phased out. At the Innoprom, we demonstrate a prototype which is 107mm in diameter,” said Aleksandr Bushuev, General Director of RPE Saliut.
The Innoprom International Industrial Exhibition – is the major industrial, trading and exports platform in Russia. The event is held in Yekaterinburg from 4 July to 7 July. This year, Kazakhstan is the partner country of the exhibition.