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:
Sep. 18, 2001
Filed:
Sep. 17, 1999
Joseph Michael Freund, Fogelsville, PA (US);
George John Przybylek, Douglasville, PA (US);
Dennis Mark Romero, Bethlehem, PA (US);
Agere Systems Optoelectronics Guardian Corp., Miami Lakes, FL (US);
Abstract
A system is provided for removing large semiconductor work pieces from an adhesive film. A pick and place apparatus is provided with a collet bar with elongated sides and opposed ends. A channel extends into a cavity on a lower surface of the collet bar. The channel receives a vacuum. The collet bar is angled from a longitudinal axis of the larger work piece to be removed. The work piece may be aligned with a cylindrical roller located under the adhesive film. The angle is chosen to extend the bar across a majority of the width of the work piece. By lowering the collet bar, a first end contacts the work piece, which may be tilted on the roller. Further lowering of the collet bar tilts the semiconductor work piece up into the same plane as the lower surface of the collet bar.