Patent ID: 6165555
Filing Date: 2000-12-26
Classification: C23C,H01L

Abstract:
A method for forming copper film using chemical vapor deposition comprising the steps of:introducing 1,1,1,5,5,5-hexafluoro-2,4-pentanedionato (vinyltrimethoxysilane) copper(I) and 1,1,1,5,5,5-hexafluoro-2,4-pentanedione into a reaction chamber by using a process gas delivery means, the process gas delivery means including:first storing means,a delivery means,an evaporator,second storing means,a thermal supply means, anda bubbling means,the first storing means maintaining the 1,1,1,5,5,5-hexafluoro-2,4-pentanedionato (vinyltrimethoxysilane) copper(I) at room temperature, the delivery means transferring the 1,1,1,5,5,5-hexafluoro-2,4-pentanedionato (vinyltrimethoxysilane) copper(I) in the first storing means to the evaporator and controlling the amount of the 1,1,1,5,5,5-hexafluoro-2,4-pentanedionato (vinyltrimethoxysilane) copper(I) flowing into the evaporator by a micropump, the evaporator vaporizing the 1,1,1,5,5,5-hexafluoro-2,4-pentanedionato (vinyltrimethoxysilane) copper(I) transferred from the delivery means and providing a port connected with a gas line for a first carrier gas,the second storing means receiving the 1,1,1,5,5,5-hexafluoro-2,4-pentanedione, the thermal supply means heating the 1,1,1,5,5,5-hexafluoro-2,4-pentanedione in the second storing means, the bubbling means bubbling the 1,1,1,5,5,5-hexafluoro-2,4-pentanedione by a second carrier gas,wherein the reaction chamber includes a substrate including a semiconducting, conducting or insulating film, a support member, a heater, a gas distribution unit, and a vacuum pumping port,the heater supplying thermal energy to the substrate mounted on the support member so as to induce copper chemical vapor deposition from said 1,1,1,5,5,5-hexafluoro-2,4-pentanedionato (vinyltrimethoxysilane) copper(I), and said 1,1,1,5,5,5-hexafluoro-2,4-pentanedione, said deposited copper having a (111) preferred orientation, the gas distribution unit spraying process gases supplied from the process gas delivery means onto the substrate, and the vacuum pumping port is connected to a vacuum pressure providing means including a turbomolecular pump, a mechanical pump, a motorized throttle valve, and vacuum valves which control a pressure of the reaction chamber.