USE OF SURFACTANTS HAVING AT LEAST THREE SHORT-CHAIN PERFLUORINATED GROUPS FOR MANUFACTURING INTEGRATED CIRCUITS HAVING PATTERNS WITH LINE-SPACE DIMENSIONS BELOW 50NM

The use of surfactants A, the 1% by weight aqueous solutions of which exhibit a static surface tension 3; and a photolithographic process making use of the surfactants A in immersion photoresist layers, photoresist layers exposed to actinic radiation, developer solutions for the exposed photoresist...

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Bibliographische Detailangaben
Hauptverfasser: MAYER, Dieter, KLIPP, Andreas
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The use of surfactants A, the 1% by weight aqueous solutions of which exhibit a static surface tension 3; and a photolithographic process making use of the surfactants A in immersion photoresist layers, photoresist layers exposed to actinic radiation, developer solutions for the exposed photoresist layers and/or in chemical rinse solutions for developed patterned photoresists comprising patterns having line-space dimensions below 50 nm and aspect ratios >3. By way of the surfactants A, pattern collapse is prevented, line edge roughness is reduced, watermark defects are prevented and removed and defects are reduced by removing particles.