Abstract:
A hardmask composition for processing a resist underlayer film is provided. The hardmask composition comprises: (a) an organosilane polymer prepared by reacting polycondensation products of hydrolysates of compounds represented by Formulae 1, 2 and 3: [RO] 3 Si-Ar (1) (wherein R is methyl or ethyl and Ar is an aromatic ring-containing functional group), [RO] 3 Si-H (2) (wherein R is methyl or ethyl), and [RO] 3 Si-R' (3) (wherein R is methyl or ethyl and R'is substituted or unsubstituted cyclic or acyclic alkyl) with ethyl vinyl ether of Formula 4: CH 2 CHOCH 2 CH 3 (4) in the presence of an acid catalyst; (b) a solvent; and (c) a crosslinking catalyst.
Abstract:
A hardmask composition for processing a resist underlayer film is provided. The hardmask composition comprises an organosilane polymer and a solvent or a mixture of solvents wherein the organosilane polymer is prepared in the presence of an acid catalyst by polycondensation of hjdroly sates of compounds represented by Formulae 1, 2 and 3: ([R)1O]3S-X (1) wherein X is a C6-C30 functional group containing at least one substituted or unsubstituted aromatic ring and R1 is a C1-C6 alkyl group; [R2O]3S-R 3 (2) wherein R2 is a C1-C6 alkyl group and R3 is a C1-C12 alkyl group; and [R4O]3S-Y-S[OR 5]3 (3) wherein R4 and R5 are each independently a C1-C6 alkyl group, and Y is a linking group selected from the group consisting of aromatic rings, substituted or unsubstituted, linear or branched C1-C20 alkylene groups, C1-C20 alkylene groups containing an aromatic ring, a heterocyclic ring, an urea group or an isocyanurate group in the backbone and C2-C20 hydrocarbon groups containing at least one multiple bond. The hardmask composition exhibits excellent film characteristics and good storage stability and allows transferring a good pattern to a material layer due to its satisfactory hardmask characteristics. In addition, the hardmask composition has improved etch resistance against O 2 plasma gas upon subsequent etching for patterning. The hardmask composition can be used to form a highly hjdrophilic thin film, thus being effective in improving the interfacial compatibility of the thin film with an overlying antireflective coating. Further provided is a process for producing a semiconductor integrated circuit device using the hardmask composition.
Abstract:
Disclosed is a hardmask composition having antireflective properties useful for a lithographic process. The hardmask composition provides excellent optical properties, superior mechanical properties and high etch selectivity. In addition, the hardmask composition can be easily applied by a spin-on coating technique. Advantageously, the hardmask composition is suitable for a short- wavelength lithographic process and has a minimum residual acid content.
Abstract:
Disclosed is a hardmask composition for forming a resist underlayer film. The hardmask composition comprises (A) an organosilane polymer and (B) at least one stabilizer. The hardmask composition is very stable during storage and allows a good pattern to be transferred to a material layer due to its excellent hardmask properties.
Abstract:
Disclosed is a hardmask composition for processing a resist underlayer film. The hardmask composition comprises: (a) an organosilane polymer having alkoxy groups prepared from a compound represented by [RO] 3 Si-R' (1) (wherein R is methyl or ethyl and R' is substituted or unsubstituted cyclic or acyclic alkyl), or an organosilane polymer having alkoxy groups prepared from the compound of Formula 1 and a compound represented by [RO] 3 Si-Ar (2) (wherein R is methyl or ethyl and Ar is an aromatic ring-containing functional group); and (b) a solvent. The hardmask composition has excellent film characteristics. In addition, the hardmask composition exhibits excellent hardmask characteristics, thus allowing a good pattern to be effectively transferred to a material layer. Particularly, the hardmask composition is highly stable during storage. Further disclosed is a method for producing a semiconductor integrated circuit device using the hardmask composition.
Abstract:
Provided herein, according to some embodiments of the invention, are organosilane polymers prepared by reacting organosilane compounds including (a) at least one compound of Formula (I) Si(OR 1 )(OR 2 )(OR 3 )R 4 wherein R 1 , R 2 and R 3 may each independently be an alkyl group, and R 4 may be -(CH 2 ) n R 5 , wherein R 5 may be an aryl or a substituted aryl, and n may be O or a positive integer; and (b) at least one compound of Formula (II) Si(OR 6 )(OR 7 )(OR 8 )R 9 wherein R 6 , R 7 and R 8 may each independently an alkyl group or an aryl group; and R 9 may be an alkyl group. Also provided are hardmask compositions including an organosilane compound according to an embodiment of the invention, or a hydrolysis product thereof. Methods of producing semiconductor devices using a hardmask compostion according to an embodiment of the invention, and semiconductor devices produced therefrom, are also provided.