US 11,749,787 B2
Forming a multicolor phosphor-converted LED array
Emma Dohner, Redwood City, CA (US); Kentaro Shimizu, Sunnyvale, CA (US); and Hisashi Masui, San Jose, CA (US)
Assigned to Lumileds LLC, San Jose, CA (US)
Filed by Lumileds LLC, San Jose, CA (US)
Filed on Apr. 13, 2022, as Appl. No. 17/719,793.
Application 17/719,793 is a division of application No. 17/718,811, filed on Apr. 12, 2022.
Application 17/718,811 is a continuation of application No. PCT/US2020/055729, filed on Oct. 15, 2020.
Application PCT/US2020/055729 is a continuation in part of application No. 16/653,414, filed on Oct. 15, 2019, granted, now 11,063,191, issued on Jul. 13, 2021.
Claims priority of application No. 20157722 (EP), filed on Feb. 17, 2020.
Prior Publication US 2022/0238767 A1, Jul. 28, 2022
Int. Cl. H01L 33/00 (2010.01); H01L 25/075 (2006.01); H01L 33/50 (2010.01)
CPC H01L 33/504 (2013.01) [H01L 25/0753 (2013.01); H01L 33/005 (2013.01); H01L 33/0095 (2013.01); H01L 2933/0041 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for making a light emitting apparatus, the method comprising:
positioning on a semiconductor LED array comprising multiple semiconductor LED pixels a first set of phosphor pixels arranged on a carrier substrate, with each phosphor pixel of the first set aligned with a corresponding semiconductor LED pixel of the array, the phosphor pixels of the first set having a layer of thermally curable adhesive, in an uncured state, on a surface thereof opposite the carrier substrate so that a corresponding segment of the adhesive is between and in contact with each phosphor pixel of the first set and a light output surface of the corresponding semiconductor LED pixel; and
electrically operating selected ones of the semiconductor LED pixels to emit light and to heat the corresponding phosphor pixels to a temperature that at least partially cures corresponding discrete segments of the adhesive and bonds each one of the selected semiconductor LED pixels to the corresponding phosphor pixel of the first set.