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. 21, 2020
Filed:
Jan. 11, 2016
Osram Oled Gmbh, Regensburg, DE;
Michael Huber, Bad Abbach, DE;
Lorenzo Zini, Regensburg, DE;
OSRAM OLED GmbH, Regensburg, DE;
Abstract
According to the present disclosure, a method for producing a plurality of semiconductor chips is provided with the following steps: a) providing a composite assembly, including a carrier, a semiconductor layer sequence and a functional layer; b) severing the functional layer by means of coherent radiation along a singulation pattern; c) forming separating trenches in the carrier along the singulation pattern; and d) applying a protective layer, which delimits the functional layer toward the separating trenches, on in each case at least one side surface of the semiconductor chips to be singulated. The singulated semiconductor chips each includes a part of the semiconductor layer sequence, of the carrier and of the functional layer.