Patent ID: 6352244
Filing Date: 2002-03-05
Classification: C23C

Abstract:
A gasline system for delivering gases for chemical vapor deposition, the system comprising a Ti[N(CH3)2]4 ampule, a carrier gasline connected to the Ti[N(CH3)2]4 ampule, and a mixture gasline consisting of a nitrogen gasline and a helium-dilute gasline, wherein the mixture gasline is connected to the Ti[N(CH3)2]4 ampule in order to mix a carrier gas and Ti[N(CH3)2]4 with a mixed gas comprising a nitrogen gas and a helium-dilute gas, an improvement to which system comprises auxiliary gasline-heating units located on the nitrogen gasline and on the helium-dilute gasline for increasing exit temperatures of the nitrogen gas and the helium-dilute gas, respectively, wherein the auxiliary gasline-heating units further comprise:two heater tapes respectively located on the nitrogen gasline and the helium-dilute gasline for heating the nitrogen gasline and the helium-dilute gasline; a temperature controller connected to the two heater tapes for controlling temperatures of the two heater tapes; and a power supply connected to the temperature controller for supplying a heating power.