Si1-xGex single crystals (0 < x < 0.15) with diameter up to 2 in were
grown by conventional Czochralski technique. The method for the growth
of Ge(1-x)Six crystals using continuous feeding the melt with a numbe
r of Si rods was developed and the Ge1-xSix crystals (0 < x < 0.3) wer
e grown. The growth process both Si1-xGex and Ge1-xSix crystals was ca
rried out using the automated control system based on the crystal weig
hing. The peculiarities of weight control at the stage of conical part
formation are considered.