Nikolai N Korneev

Title: Nikolai N. Korneev: Inventor of a High-Purity Silane Preparation Method

Introduction

Nikolai N. Korneev is an inventor associated with Moscow, Russia, and Midwest Research Institute. His work includes a patented process for preparing high-purity silane, a material used in semiconductor manufacturing and silicon production. His patent portfolio includes 1 patent.

Latest Patents

Korneev’s patent, “Method of High Purity Silane Preparation,” describes a process for producing silane suitable for forming thin silicon layers in semiconductor devices and for making high-purity polycrystalline and single-crystal silicon.

The method begins by reacting metallurgical silicon with alcohol under heat and in the presence of a catalyst. The resulting alkoxysilanes are separated and purified, then undergo simultaneous oxidation and reduction to produce gaseous silane and liquid secondary products. The silane is purified through impurity adsorption, while unreacted alcohol is recovered and returned to the silicon reaction.

The patent also describes processing the concentrated alkoxysilane mixture with a catalyst at temperatures from −20°C to +40°C for one to 50 hours. Tetra-alkoxysilane recovered from the liquid products is hydrolyzed to produce silica sol and alcohol. The alcohol is dehydrated and recycled into the process.

Career Highlights

Korneev’s documented contribution is a process designed to integrate silane production, purification, and the recovery of useful byproducts. The method’s recycling steps return alcohol to the reaction cycle, while hydrolysis of tetra-alkoxysilane yields industrial silica sol.

Collaborations

Korneev’s listed coworkers include Vadim G. Gerlivanov and Y. Simon Tsuo. His company affiliation is Midwest Research Institute.

Conclusion

Nikolai N. Korneev’s patented method addresses the preparation of high-purity silane through a sequence of reactions, purification, and material recovery, with applications in semiconductor devices and high-purity silicon production.