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. 01, 2020
Filed:
Jan. 30, 2018
Applicant:
Facebook Technologies, Llc, Menlo Park, CA (US);
Inventors:
Assignee:
Facebook Technologies, LLC, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/44 (2010.01); H01L 21/67 (2006.01); H01L 33/06 (2010.01); H01L 33/24 (2010.01); H01L 33/40 (2010.01); H01L 33/00 (2010.01); H01L 25/075 (2006.01); H01J 37/32 (2006.01); H01L 33/10 (2010.01); H01L 21/784 (2006.01); H01L 27/15 (2006.01); H01L 21/683 (2006.01); B65G 47/90 (2006.01); H01S 5/183 (2006.01);
U.S. Cl.
CPC ...
H01L 21/67144 (2013.01); H01J 37/321 (2013.01); H01L 21/6836 (2013.01); H01L 21/784 (2013.01); H01L 25/0753 (2013.01); H01L 27/156 (2013.01); H01L 33/0095 (2013.01); H01L 33/06 (2013.01); H01L 33/10 (2013.01); H01L 33/24 (2013.01); H01L 33/405 (2013.01); H01L 33/44 (2013.01); B65G 47/90 (2013.01); H01J 2237/334 (2013.01); H01L 2933/0025 (2013.01); H01S 5/183 (2013.01);
Abstract
Embodiments relate to an integrated process for forming an elastomeric layer over an epitaxial structure of multiple light emitting diode (LED) dies, and then etching the elastomeric layer into individual elastomeric interface layers (elayers) on each of the LED dies and etching the epitaxial structure to singulate the LED dies. The elayer allows each LED die to be picked up by a pick-up head (or pick and place head (PPH)), and placed onto a display substrate including control circuits for sub-pixels of an electronic display. In some embodiments, the LED dies are micro-LED (uLED) dies.