The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 2006
Filed:
Dec. 12, 2001
David Ferreres, Montpellier Cédex, FR;
David Ferreres, Montpellier Cédex, FR;
Semco Engineering SA, Montpellier Cedex, FR;
Abstract
A device for holding a wafer, an electronic component comprises a system for transporting without deformation a wafer of electronic components. The device also enables the transport by one or the other of the passive or active faces. The device comprises a planar and thin rigid support having a controllable temperature and at least an electrode consisting of (N+1) elements, confined between two sheets of insulating material. The support provides a protrusion-free surface for gripping the wafer, and electrostatic elements for positive retention of the wafer induces a gripping power of the latter distributed over the entire support. The U-shaped support is borne by the electrical bond of the electrode with a remote (adjustable, AC or DC, mono-multipolar) power source. The gripping surface of the device is planar and protrusion-free whatever the geometry of the support used.