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:
Apr. 26, 2011
Filed:
Dec. 02, 2004
Elke Zakel, Falkensee, DE;
Ghassem Azdasht, Berlin, DE;
Elke Zakel, Falkensee, DE;
Ghassem Azdasht, Berlin, DE;
Pac Tech—Packaging Technologies GmbH, Nauen, DE;
Abstract
A method and device for alternately contacting two wafer-like component composite arrangements, in which the two component composite arrangements, provided with contact metallizations on their opposing contact surfaces, are brought into a coverage position with their contact metallizations to form contact pairs, in which position the contact metallizations to be joined together are pressed against one another, the contact metallizations being contacted by exposing the rear of one of the component composite arrangements to laser radiation, the wavelength of the laser radiation being selected as a function of the degree of absorption of the component composite arrangement , so that a transmission of the laser radiation through the component composite arrangement exposed to the laser radiation at the rear is essentially suppressed or an absorption of the laser radiation takes place essentially in the contact metallizations of one or both component composite arrangements.