Metal peroxo compounds with organic co-ligands for electron beam, deep UV and extreme UV protoresist applications

Compositions are disclosed having the formula (3): [C′]k[Ta(O2)x(L′)y]  (3), wherein x is an integer of 1 to 4, y is an integer of 1 to 4, Ta(O2)x(L′)y has a charge of 0 to −3, C′ is a counterion having a charge of +1 to +3, k is an integer of 0 to 3, L′ is an oxidatively stable organic ligand havin...

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Bibliographische Detailangaben
Hauptverfasser: LINDA KARIN SUNDBERG, GREGORY MICHAEL WALLRAFF, ROBERT DENNIS MILLER, QING SONG, HOOL KIM, JOHN DAVID BASS
Format: Patent
Sprache:eng
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Zusammenfassung:Compositions are disclosed having the formula (3): [C′]k[Ta(O2)x(L′)y]  (3), wherein x is an integer of 1 to 4, y is an integer of 1 to 4, Ta(O2)x(L′)y has a charge of 0 to −3, C′ is a counterion having a charge of +1 to +3, k is an integer of 0 to 3, L′ is an oxidatively stable organic ligand having a charge of 0 to −4, and L′ comprises an electron donating functional group selected from the group consisting of carboxylates, alkoxides, amines, amine oxides, phosphines, phosphine oxides, arsine oxides, and combinations thereof. The compositions have utility as high resolution photoresists.