Patent ID: 6329643
Filing Date: 2001-12-11
Classification: C30B,F27D,H01L

Abstract:
A method of temperature-calibrating a second heat treating apparatus based on a heat treatment result obtained by a first heat treating apparatus for reference, the first heat treating apparatus comprising a first process chamber, a first heating unit for heating an inside of the first process chamber, and a first controller for setting a temperature of the first heating unit, the second heat treating apparatus comprising a second process chamber, a second heating unit for heating an inside of the second process chamber, and a second controller for setting a temperature of the second heating unit, the first and second process chambers being substantially equal to each other in construction and the first and second heating units being substantially equal to each other in construction, the method comprising:a temperature measuring step of heating a measurement substrate for measuring temperature at a selected position within the first process chamber by the first heating unit, and obtaining a first set value of temperature of the first controller for converging a measured temperature of the measurement substrate to a target value of temperature;a heat treating step on a primary side of forming a first thin film on a first substrate by heating the first substrate at the selected position within the first process chamber by the first heating unit while setting the first controller at the first set value of temperature, the first thin film being formed under a selected process pressure and selected process gas conditions that are selected such that a growth rate of the first thin film is changed as a function of temperature;a heat treating step on a secondary side of forming a second thin film equal in material to the first thin film on a second substrate substantially equal in size and material to the first substrate under the selected process pressure and selected process gas conditions by heating the second substrate at a position, corresponding to the selected position, within the second process chamber by the second heating unit; anda calibrating step of obtaining a second set value of temperature of the second controller at the time when a thickness of the first thin film and a thickness of the second thin film are made equal to each other, and temperature-calibrating the second heat treating apparatus based on an assumption that the target value of temperature is obtained at the position, corresponding to the selected position, within the second process chamber at a time when a set temperature of the second controller is the second set value of temperature.