STRIPPING COMPOSITIONS HAVING HIGH WN/W ETCHING SELECTIVITY

A composition for cleaning integrated circuit substrates, the composition comprising: water; an oxidizer comprising an ammonium salt of an oxidizing species; a corrosion inhibitor comprising a primary alkylamine having the general formula: R'NH 2 , wherein R' is an alkyl group containing u...

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Bibliographische Detailangaben
Hauptverfasser: INAOKA, SEIJI, PARRIS, GENE EVERAD, LIU, WEN DAR, CHEN, TIANNIU, CASTEEL, WILLIAM JACK, JR, LEE, YIIA
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A composition for cleaning integrated circuit substrates, the composition comprising: water; an oxidizer comprising an ammonium salt of an oxidizing species; a corrosion inhibitor comprising a primary alkylamine having the general formula: R'NH 2 , wherein R' is an alkyl group containing up to about 150 carbon atoms and will more often be an aliphatic alkyl group containing from about 4 to about 30 carbon atoms; optionally, a water-miscible organic solvent; optionally, an organic acid; optionally, a buffer speicies; optionally, a fluoride ion source; and optionally, a metal chelating agent.