OBJECT TABLE, A STAGE APPARATUS, A LITHOGRAPHIC APPARATUS AND A METHOD OF LOADING AN OBJECT ONTO AN OBJECT TABLE OR STAGE APPARATUS

The invention provides an object table configured to hold an object on a holding surface, the object table comprising: a main body; a plurality of burls extending from the main body, end surfaces of the burls defining the holding surface; an actuator assembly; wherein the actuator assembly is config...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: VERMEULEN JOHANNES, JANSEN BAS, S. J. HERMANUSSEN, STEUR MICHAEL M A, BUTLER HANS
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention provides an object table configured to hold an object on a holding surface, the object table comprising: a main body; a plurality of burls extending from the main body, end surfaces of the burls defining the holding surface; an actuator assembly; wherein the actuator assembly is configured to deform the main body to generate an out-of- plane deformation of the holding surface, based on shape information of the object that is to be held. 本发明提供了一种被配置为将物体保持在保持表面上的载物台,所述载物台包括:主体;从主体延伸的多个突节,突节的端面限定保持表面;致动器组件;其中致动器组件被配置为使主体变形,以基于要被保持的物体的形状信息来生成保持表面的平面外变形。