US 12,364,070 B2
Self-supporting wavelength-converting phosphor layer
Jens Meyer, Aachen (DE); Niels Jeroen Van Der Veen, Schiphol (NL); and Ronja Missong, Aachen (DE)
Assigned to Lumileds LLC, San Jose, CA (US)
Filed by LUMILEDS LLC, San Jose, CA (US)
Filed on Jul. 21, 2022, as Appl. No. 17/869,933.
Application 17/869,933 is a continuation of application No. PCT/US2021/014565, filed on Jan. 22, 2021.
Claims priority of application No. 20153301 (EP), filed on Jan. 23, 2020.
Prior Publication US 2022/0359795 A1, Nov. 10, 2022
Int. Cl. H01L 33/50 (2010.01); H10H 20/851 (2025.01)
CPC H10H 20/8512 (2025.01) [H10H 20/8515 (2025.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
forming on a surface of a substrate a layer of multiple phosphor particles;
forming or depositing inorganic material that at least partially embeds the layer of phosphor particles on the substrate so as to form a wavelength-converting layer comprising the phosphor particles and the inorganic material, the wavelength-converting layer having a first surface against the substrate surface and a second surface opposite the first surface; and
separating the wavelength-converting layer from the substrate, the inorganic material binding together the phosphor particles so that the wavelength-converting layer is self-supporting.