Hard Mask Layer Stack And A Method Of Patterning

A hard mask layer stack for patterning a layer to be patterned includes a carbon layer disposed on top of the layer to be patterned, a first layer of a material selected from the group of SiO2 and SiON disposed on top of the carbon layer and a silicon layer disposed on top of the first layer. A meth...

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Hauptverfasser: NAGEL NICOLAS, MANGER DIRK, VERHOEVEN MARTIN, BLAWID STEFAN, GUTSCH MANUELA, BAUCH LOTHAR, BOUBEKEUR HOCINE, TATRY THOMAS, VOGT MIRKO, ROESSIGER MARTIN, MARKERT MATTHIAS, CASPARY DIRK, LATTARD LUDOVIC
Format: Patent
Sprache:eng
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Zusammenfassung:A hard mask layer stack for patterning a layer to be patterned includes a carbon layer disposed on top of the layer to be patterned, a first layer of a material selected from the group of SiO2 and SiON disposed on top of the carbon layer and a silicon layer disposed on top of the first layer. A method of patterning a layer to be patterned includes providing the above described hard mask layer stack on the layer to be patterned and patterning the silicon hard mask layer in accordance with a pattern to be formed in the layer that has to be patterned.