PROCEDE DE PRODUCTION D'UNE COMPOSITION DE POLISSAGE MECANO-CHIMIQUE ET PROCEDE DE POLISSAGE MECANO-CHIMIQUE

The present invention provides a method of manufacturing a composition for polishing silica and silicon nitride on a semiconductor substrate. The method comprises ion-exchanging carboxylic acid polymer to reduce ammonia and combining by weight percent 0.01 to 5 of the ion-exchanged carboxylic acid p...

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Bibliographische Detailangaben
1. Verfasser: MUELLER BRIAN L
Format: Patent
Sprache:fre
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Zusammenfassung:The present invention provides a method of manufacturing a composition for polishing silica and silicon nitride on a semiconductor substrate. The method comprises ion-exchanging carboxylic acid polymer to reduce ammonia and combining by weight percent 0.01 to 5 of the ion-exchanged carboxylic acid polymer with 0.001 to 1 quaternary ammonium compound, 0.001 to 1 phthalic acid and salts thereof, 0.01 to 5 abrasive, and balance water.