Process for the abrasive machining of surfaces, in particular of semiconductor wafers

The invention relates to a process for the abrasive machining of surfaces of semiconductors. A process is described for the chemical mechanical machining of semiconductor wafers. A plurality of surfaces are successively subjected to a polishing step, in which they are brought into contact with a pol...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Hollatz, Mark, Römer, Andreas
Format: Patent
Sprache:eng
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention relates to a process for the abrasive machining of surfaces of semiconductors. A process is described for the chemical mechanical machining of semiconductor wafers. A plurality of surfaces are successively subjected to a polishing step, in which they are brought into contact with a polishing device. The polishing device contains a polishing-grain carrier with polishing grains, and the surfaces are moved relative to the polishing device. Material is removed from the surface by the polishing grains, which are fixed in the polishing-grain carrier and may become partially detached from the carrier material during the polishing operation. In each case one or more polishing steps is preceded by a conditioning step for regeneration of the polishing device. The polishing device and a conditioning surface of strong structure are brought into contact with one another and moved relative to one another, with the result that starting states of the polishing-device surface at a beginning of the individual polishing steps are comparable with one another.