Invention Grant
- Patent Title: Flexibly deformable holding element for substrates
- Patent Title (中): 用于基板的可变形保持元件
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Application No.: US12565121Application Date: 2009-09-23
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Publication No.: US08274640B2Publication Date: 2012-09-25
- Inventor: Gerhard Kalkowski , Stefan Risse , Thomas Peschel , Christoph Damm
- Applicant: Gerhard Kalkowski , Stefan Risse , Thomas Peschel , Christoph Damm
- Applicant Address: DE München
- Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- Current Assignee Address: DE München
- Agency: Gibson & Dernier LLP
- Agent Matthew B. Dernier, Esq.
- Priority: DE102008052100 20081008
- Main IPC: G03B27/58
- IPC: G03B27/58 ; H01L21/683

Abstract:
Flexibly deformable holding elements operate such that substrates can be held in a fixed manner at a surface of the holding element electrostatically or also by use of negative pressure and planar positional deviations or unwanted deformations can be compensated simply and reliably, where at least one cut-out having an opening arranged at the rear side is formed at the rear side of the holding element which is disposed opposite the surface, and an actuator is arranged there exerting compressive forces or pulling forces for a widening or narrowing of the cut-out and/or for a deformation of the holding element.
Public/Granted literature
- US20100265485A1 Flexibly Deformable Holding Element For Substrates Public/Granted day:2010-10-21
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