Blade assembly cover
AssigneeMicron Technology, Inc.
InventorErnest J. Hamilton
Life of this patent
Estimating the term…
Abstract
A gang blade assembly which controls the trajectory of detritus from a ball grid array substrate dicing operation is described. The assembly includes a cover which partially encases a hub with a plurality of blades. A brush is mounted on the cover to disrupt an air flow created by rotation of the hub and blades. The brush extends beneath the cover and has bristles which contact the hub. The bristles also serve to clear the hub of any detritus produced during dicing. More than one brush may be mounted on the cover.
Claims46
A blade assembly, comprising:
- a blade device, comprising:
- a hub;
- and
- at least one blade on said hub;
- a cover partially encasing said blade device;
- and
- a brush mounted on said cover and extending toward said hub.
A blade assembly, comprising:
- a blade device, comprising:
- a hub;
- and
- at least one blade on said hub;
- a cover partially encasing said blade device;
- and
- first and second brushes mounted on said cover and extending toward said hub.
A cover assembly for use with a gang blade assembly, comprising:
- a cover having a leading side and a top side;
- at least one bracket mounted on said cover;
- and
- at least one brush mounted on said at least one bracket, wherein said at least one brush comprises bristles which extend under said top side toward said leading side.
A method of controlling the trajectory of detritus during a substrate dicing operation, said method comprising:
- placing a protective cover at least partially around the periphery of a blade assembly that includes a hub and at least one blade;
- rotating the hub and the at least one blade;
- dicing a ball grid array substrate with the rotating blade, said dicing producing detritus;
- and
- disrupting an air flow caused by said rotating.
Dependencies are inferred from the claim text.