Patent ID: 6310019
Filing Date: 2001-10-30
Classification: C11D,H01L

Abstract:
A cleaning agent for a semi-conductor substrate, comprising a compound of the general formula [2""] ##STR21##(wherein R.sub.1 to R.sub.4 are each independently a hydrogen atom, a hydroxy group, or an alkyl having 1 to 10 carbon atoms or a haloalkyl group having 1 to 10 carbon atoms, and r, r', s and s' are each independently 0 or an integer and the total of r, r', s and s' are 1 to 20) and a quaternary ammonium compound of the general formula [5'] ##STR22##(wherein R.sub.6 to R.sub.9 are each independently a lower alkyl group having 1 to 6 carbon atoms or a hydroxy lower alkyl group having 1 to 6 carbon atoms).