United Solar Ovonic Corp.

Gregory Demaggio

Kevin Beernink

Subhendu Guha

Arindam Banerjee

Ginger Pietka

Kenneth Lord

Kermit Jones

Arthur Myatt

Jeffrey Yang

Todd Johnson

Shengzhong (Frank) Liu

Kermit H Jones

A web of a first sheet material and a web of a second sheet material are laminated together by a process wherein the sheet materials are wound, in an interleaved relationship, upon a roller having a radially displaceable outer surface. The roller and webs and then subjected to heating and/or a low-pressure environment so as to complete the lamination. A body of adhesive material, such as a hot melt adhesive, may be interposed between the webs and the heating or low pressure environment can activate this adhesive. Further disposed are particular configurations of rollers with radially displaceable surfaces.

Lamination process and roller for use therein

An ultra lightweight semiconductor device such as a photovoltaic device is fabricated on a non-etchable barrier layer which is disposed upon an etchable substrate. The device is contacted with an appropriate etchant for a period of time sufficient to remove at least a portion of the thickness of the substrate. The barrier layer prevents damage to the photovoltaic material during the etching process. Photovoltaic devices fabricated by this method have specific power levels in excess of 300 w/kg.

Ultra lightweight photovoltaic device and method for its manufacture

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Ann Arbor, MI, United States of America

Gregory Demaggio