摘要:
A temperature control method is used for controlling a temperature of a hot plate, so that a measured temperature of the hot plate conforms to a target temperature thereof, in a heat processing apparatus for performing a heat process on a substrate placed on the hot plate, which is used in a coating/developing system for applying a resist coating onto the substrate to form a resist film and then performing development on the resist film after light exposure. The method includes acquiring adjustment data necessary for adjusting a reaching time defined by a time period for increasing the temperature of the substrate from a first temperature around an initial temperature to a second temperature around the target temperature; and adjusting the target temperature by use of the adjustment data thus acquired, after starting the process on the substrate.
摘要:
The present invention relates to a method for heat processing of a substrate having the step of baking a substrate, on which a coating film is formed, at a predetermined high temperature, comprising a first step of increasing the substrate from a predetermined low temperature to a predetermined intermediate temperature lower than a predetermined reaction temperature at which the coating film reacts, a second step of maintaining the substrate at the predetermined intermediate temperature for a predetermined period of time, and a third step of increasing the temperature of the substrate to the predetermined high temperature higher than the predetermined reaction temperature. By temporarily increasing the temperature of the substrate to the intermediate temperature lower than the reaction temperature, maintaining the substrate at this intermediate temperature for the predetermined period of time, and thereafter increasing the temperature of the substrate to the high temperature higher than the reaction temperature when the temperature of the substrate is increased, the temperature within the surface of the substrate can be made uniform when the temperature of the substrate reaches the reaction temperature. Consequently, a chemical reaction due to heat processing of the coating film within the surface of the substrate is performed uniformly.
摘要:
A temperature control method is used for controlling a temperature of a hot plate, so that a measured temperature of the hot plate conforms to a target temperature thereof, in a heat processing apparatus for performing a heat process on a substrate placed on the hot plate, which is used in a coating/developing system for applying a resist coating onto the substrate to form a resist film and then performing development on the resist film after light exposure. The method includes acquiring adjustment data necessary for adjusting a reaching time defined by a time period for increasing the temperature of the substrate from a first temperature around an initial temperature to a second temperature around the target temperature; and adjusting the target temperature by use of the adjustment data thus acquired, after starting the process on the substrate.
摘要:
The present invention relates to a method for heat processing a substrate. After a coating film is formed on the substrate, the substrate is baked at a predetermined high temperature. The baking step is performed by first increasing the substrate temperature from a predetermined low temperature to a predetermined intermediate temperature that is lower than a predetermined reaction temperature at which the coating film reacts. Next, a second baking step maintains the substrate at the predetermined intermediate temperature for a predetermined period of time, and is followed by a third step of increasing the temperature of the substrate to the predetermined high temperature that is higher than the predetermined reaction temperature. This results in uniform temperature within the surface of the substrate when the temperature of the substrate reaches the reaction temperature. Consequently, a chemical reaction due to heat processing of the coating film within the surface of the substrate is performed uniformly.
摘要:
The present invention is a substrate processing apparatus for performing processing of a substrate including: a heat treatment unit provided in a casing of the processing apparatus and having a heating section in which a heat treatment of the substrate is performed; a duct provided on a side part on the heating section side of the casing; and a cooling flow passage provided in the duct for allowing a cooling fluid to flow therethrough. Heat generated from the heating section is prevented from conducting by an air current flowing in the duct, and further the heat is absorbed by the cooling fluid. Therefore, it is possible to prevent the heat from conducting to the outside of the casing.
摘要:
A substrate coated with a coating solution is placed on a heating plate in a processing chamber in which an inert gas is circulating. The substrate is heated on the heating plate while the inert gas is circulating at an extremely small first circulating amount. The substrate is heated further on the heating plate while the inert gas is circulating at a second circulating amount larger than the first circulating amount. Detected is the density of the solvent in the processing chamber. The supply and exhaust amounts of the inert gas are controlled based on the density detected after the start of heating, so that an exhaust amount of the inert gas becomes a predetermined amount for a predetermined period until the solvent density reaches a predetermined density. A necessary control process is performed so that the solvent density reaches the predetermined density when the solvent density has not reached or exceeded the predetermined density after the predetermined period has elapsed. The two-time thermal-process or solvent-density control promotes evaporation of the resist solvent while restricting scattering of a photo-oxidizing agent included in the resist from being promoted beyond the wafer surface, thus achieving coated-film uniformity for the thermal process.
摘要:
An exhaust hole has a size covering not only a first region above a hot plate but also a second region surrounding the first region. A plate ember with a plurality of openings is disposed at the mouth of the exhaust hole. The exhaust hole exhausts air from the first region and the second region, even when the heat processing is not performed. Therefore, a solvent volatilized in the first region is also exhausted from the second region and will not leak outside the apparatus.
摘要:
A temperature control method for a heat process on a resist film on a substrate includes first and second steps. The first step includes measuring a stepped response waveform of measured temperatures of a substrate at measurement points while changing stepwise each target temperature, then using this result to compose a pulsed response waveform with respect to a change of a pulsed target temperature, then using this result to compose a triangular response waveform with respect to a change of a triangular target temperature, and then using this result to acquire a matrix as relation information showing a relation between the target temperatures and temperatures of the substrate at measurement points. The second step includes acquiring temperature distribution information by use of measured temperatures of the substrate placed on the hot plate, measured at measurement points before adjustment of the target temperatures, and then calculating adjustment information by use of the relation information acquired in the first step and the temperature distribution information, thereby determining adjustment information.
摘要:
A temperature control method for a heat process on a resist film on a substrate includes first and second steps. The first step includes measuring a stepped response waveform of measured temperatures of a substrate at measurement points while changing stepwise each target temperature, then using this result to compose a pulsed response waveform with respect to a change of a pulsed target temperature, then using this result to compose a triangular response waveform with respect to a change of a triangular target temperature, and then using this result to acquire a matrix as relation information showing a relation between the target temperatures and temperatures of the substrate at measurement points. The second step includes acquiring temperature distribution information by use of measured temperatures of the substrate placed on the hot plate, measured at measurement points before adjustment of the target temperatures, and then calculating adjustment information by use of the relation information acquired in the first step and the temperature distribution information, thereby determining adjustment information.
摘要:
The present invention relates to a method for heat processing of a substrate having the step of baking a substrate, on which a coating film is formed, at a predetermined high temperature, comprising a first step of increasing the substrate from a predetermined low temperature to a predetermined intermediate temperature lower than a predetermined reaction temperature at which the coating film reacts, a second step of maintaining the substrate at the predetermined intermediate temperature for a predetermined period of time, and a third step of increasing the temperature of the substrate to the predetermined high temperature higher than the predetermined reaction temperature. By temporarily increasing the temperature of the substrate to the intermediate temperature lower than the reaction temperature, maintaining the substrate at this intermediate temperature for the predetermined period of time, and thereafter increasing the temperature of the substrate to the high temperature higher than the reaction temperature when the temperature of the substrate is increased, the temperature within the surface of the substrate can be made uniform when the temperature of the substrate reaches the reaction temperature. Consequently, a chemical reaction due to heat processing of the coating film within the surface of the substrate is performed uniformly.