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:
Jan. 31, 2017
Filed:
Jul. 13, 2012
John A. Rogers, Champaign, IL (US);
Placid M. Ferreira, Champaign, IL (US);
Reza Saeidpourazar, Nashua, NH (US);
John A. Rogers, Champaign, IL (US);
Placid M. Ferreira, Champaign, IL (US);
Reza Saeidpourazar, Nashua, NH (US);
THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS, Urbana, IL (US);
Abstract
A transfer printing process that exploits the mismatch in mechanical or thermo-mechanical response at the interface of a printable micro- or nano-device and a transfer stamp to drive the release of the device from the stamp and its non-contact transfer to a receiving substrate are provided. The resulting facile, pick-and-place process is demonstrated with the assembling of 3-D microdevices and the printing of GAN light-emitting diodes onto silicon and glass substrates. High speed photography is used to provide experimental evidence of thermo-mechanically driven release.