PRESSURE FEED GRINDING OF AMLCD SUBSTRATE EDGES

The present invention is directed to an apparatus (10) for grinding or polishing at least one edge of a glass substrate. The apparatus includes an air bearing support member (20) configured to pivot about an axis of rotation (12) with zero frictional resistance opposing said pivotal movement. A grin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ALLAIRE ROGER ALPHEE, ONO TOSHIHIKO, RAJ BABAK R, BROWN JAMES WILLIAM, SHINKAI MASAYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS FREQUENCY-CHANGING GRINDING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PERFORMING OPERATIONS PHYSICS POLISHING TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention is directed to an apparatus (10) for grinding or polishing at least one edge of a glass substrate. The apparatus includes an air bearing support member (20) configured to pivot about an axis of rotation (12) with zero frictional resistance opposing said pivotal movement. A grinding unit (30) is coupled to the air bearing support member (20). The grinding unit (30) is configured to apply a predetermined force normal to the at least one edge to remove a predetermined amount of material from the at least one edge. The predetermined force is directly proportional to the predetermined amount of material and less than a normal force resulting in glass substrate breakage.