Patent ID: 8735781
Filing Date: 2014-05-27
Classification: B29C,B30B,B82Y,G03F

Abstract:
1. A method of controlling use of a hot press device to fabricate a substrate with thermally transferred microstructures, the hot press device including a transfer unit configured to thermally transfer microstructures to a substrate, a heating unit configured to heat said transfer unit, a cooling unit configured to cool said transfer unit, a control unit configured to control said heating unit and said cooling unit, wherein when heating said transfer unit to a target temperature, said control unit performs the method of controlling use of a hot press device, comprising: comparing an amount of energy given to said transfer unit by said heating unit with an amount of energy observed to enter into said transfer unit, when a temperature of said transfer unit reaches a temperature lower than said target temperature by a predetermined amount before the temperature of said transfer unit reaches said target temperature; calculating an amount of surplus energy from a difference between said amount of energy given to said transfer unit and said amount of energy observed to enter into said transfer unit; and cooling said transfer unit such that said amount of surplus energy generated in said heating unit is cancelled by said cooling unit.