Patent ID: 9482957
Filing Date: 2016-11-01
CPC Classification: B05D,C11D,G03F,H01L

Claim Text:
1. A solvent for reducing solvent evaporation and surface interaction for semiconductor resist coating, consisting of: a first solvent, selected from the group consisting of alkylene glycol alkyl ether acetate, alkylene glycol alkyl ether and a combination thereof; and a second solvent, selected from the group consisting of n-butyl propionate, methyl n-amyl ketone, methyl iso-amyl ketone, 2-ethylhexyl acetate, n-methyl-2-pyrrolidone (NMP), diisobutyl ketone, cyclohexanone, cyclohexanol, isobutyl isobutyrate, n-pentyl propionate, p-amyl acetate, dimethylformamide, oxo-hexyl acetate esters, diacetone alcohol, oxo-heptyl acetate esters, oxo-octyl acetate esters, isophorone, ethylene glycol diacetate, dibasic esters, texanol ester alcohol, methyl isobutyl carbinol, p-amyl alcohol, 2-ethylhexanol, methoxy propyl aetate, methyl glycol, ethyl glycol, isopropyl glycol, n-butyl glycol, ethoxy propanol, diacetone alcohol, methyl amyl acetate, dimethyl dipate, di-n-butyl ether, methyl oleate and a combination there, wherein a volume ratio of the first solvent to the second solvent is in a range of 0/100 to 90/10, wherein a resist dispense volume for a 300 mm wafer is less than 0.6 cc, or a resist dispense volume for a 450 mm wafer is less than 1.1 cc.