Method and apparatus for chemical delivery through the brush

In a method of cleaning a substrate, a solution is applied to the substrate through a brush which also scrubs the substrate. Alternatively, (i) the substrate is scrubbed with a brush, an HF soln. is applied to the substrate and the brush is rinsed; or (ii) the substrate is placed in a scrubber, a fi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DOUGLAS G. GARDNER, JOHN M. DELARIOS, MIKHAIL RAVKIN
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:In a method of cleaning a substrate, a solution is applied to the substrate through a brush which also scrubs the substrate. Alternatively, (i) the substrate is scrubbed with a brush, an HF soln. is applied to the substrate and the brush is rinsed; or (ii) the substrate is placed in a scrubber, a first scrubbing cycle is carried out at a first station where a first soln . is applied to the substrate through the brush, a second scrubbing cycle is carried out at a second station using a second soln. and second brush and the brush is rinsed. Also claimed is an appts. for carrying out the process. Pref. a PVA brush is used.