Patent ID: 6240588
Filing Date: 2001-06-05
Classification: B08B,H01L

Abstract:
A brush core for use in substrate scrubbing, comprising:a tubular core extending between a first end and a second end;a bore defined through a middle of the tubular core;a first plurality of holes, each hole of the first plurality of holes being defined through the tubular core to define a path to the bore, the first plurality of holes being defined along a first line that extends between the first end and the second end; anda second plurality of holes, each hole of the second plurality of holes being defined through the tubular core to define the path to the bore, the second plurality of holes being defined along a second line that extends between the first end and the second end, the first line and the second line are repeated around the tubular core and the first line and the second line alternate around the tubular core, and wherein the holes of the first plurality of holes are offset relative to the holes of the second plurality of holes, and each of the first lines and the second lines are defined along channels that are defined into an outer surface of the tubular core.