Control device and manufacturing system

Abstract

A control device controls temperatures of heaters included in a casting furnace. The casting furnace includes a mold to receive an inorganic material and the heaters surrounding the mold to heat the mold and cause the inorganic material to melt and solidify from a bottom to manufacture an ingot. The heaters include an upper heater located above the mold, a lateral upper heater located above and lateral to the mold, and a lateral lower heater located lateral to the mold below the lateral upper heater. The control device includes a heater controller that controls, in a solidification process of the inorganic material, temperatures of the upper heater, the lateral upper heater, and the lateral lower heater based on a solidification ratio of the inorganic material and at least one of a solidification rate of the inorganic material or interface profile information indicating a solid-liquid interface profile of the inorganic material.

Dependencies are inferred from the claim text.