Patent ID: 7309683

Claim:
A cleaning composition comprising: an alkali solution; a metal corrosion inhibitor comprising at least one selected from the group consisting of 2-butyne-1,4-diol and 3-butyne-1-ol; pure water; and a surfactant represented by the following chemical formula: R1-OSO 3 -HA + wherein R1 is one selected from the group consisting of a butyl group, an isobutyl group, an isooctyl group, a nonyl phenyl group, an octyl phenyl group, a decyl group, a tridecyl group, a lauryl group, a myristyl group, a cetyl group, a stearyl group, an oleyl group, a licenoleyl group and a behnyl group, and A is one selected from the group consisting of ammonia, ethanol amine, diethanol amine and triethanol amine.