PURPOSE: To form a ribbon crystal into a thin film and enable the rapid pulling up thereof by creating a pressure difference between the outside and the inside of an apparatus for producing the silicon ribbon crystal and pulling up the ribbon.

CONSTITUTION: An apparatus for producing a silicon ribbon crystal is formed into a hermetically sealed type to apply a pressure to the interior or a pressure difference is created. Thereby, the silicon ribbon crystal is pulled up by utilizing both forces of a conventional force to pull up the ribbon crystal and a force to push up the ribbon crystal on the melt side by a pressure difference. As a result, the silicon ribbon crystal can be formed into a thin film and rapidly pulled up. When a quenching method is adopted to some extent, the crystal can more rapidly be pulled up. Furthermore. the conversion efficiency is not deteriorated so much. A gas without causing chemical reaction with the melt is used as the gas for creating the pressure difference and a gas having no influence even if it chemically reacts is required.