Patent ID: 6805135
Filing Date: 2004-10-19
Classification: C11D,H01L,Y10S

Abstract:
A cleaning solution for removing a byproduct derived from a decomposed substance of a process gas containing C and F, and deposited on a component in a process chamber of a semiconductor processing apparatus for subjecting a target substrate to a semiconductor process with the process gas, the cleaning solution comprising N-methyl-2-pyrrolidone, ethylene glycol monobutyl ether, a surfactant, and water; andwherein the surfactant contains fluorine and a total content of the N-methyl-2-pyrrolidone and ethylene glycol monobutyl ether is 80 to 90 wt %, and a ratio of a content of the N-methyl-2-pyrrolidone to the total content of the N-methyl-2-pyrrolidone and ethylene glycol monobutyl ether is 0.75 to 0.95.