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:
May. 22, 2012
Filed:
Oct. 14, 2008
John J. Daniels, Madison, CT (US);
John J. Daniels, Madison, CT (US);
Lumachip, Inc., Waterford, CT (US);
Abstract
A bare die semiconductor device, e.g., a bare die LED, includes a substrate having a bottom face and a bottom die electrode. There is also a top face having a top face edge, a top face area, a top face periphery and a top die electrode. A semiconductor material provides a p-n semiconductor junction between the top and bottom faces. The top die electrode inhibits an external top planar electrode from contact with the top face edges. Such bare die LEDs can be incorporated into a light sheet that has a transparent first substrate having a planar top electrode and a second substrate having a bottom substrate electrode. An adhesive secures the second substrate to the first substrate. Bare die LEDs are disposed in the adhesive with their top die electrodes contacting the top planar electrode and their bottom die electrodes contacting the bottom substrate electrode.