US 7,592,192 B2
White light emitting diode (white LED) and method of manufacturing white LED
Hiroyuki Nabeta, Hachioji (Japan); and Hideaki Wakamatsu, Hachioji (Japan)
Assigned to Konica Minolta Holdings, Inc., Tokyo (Japan)
Appl. No. 10/590,589
PCT Filed Feb. 24, 2005, PCT No. PCT/JP2005/002979
§ 371(c)(1), (2), (4) Date Aug. 24, 2006,
PCT Pub. No. WO2005/086239, PCT Pub. Date Sep. 15, 2005.
Claims priority of application No. 2004-061931 (JP), filed on Mar. 05, 2004.
Prior Publication US 2007/0164300 A1, Jul. 19, 2007
Int. Cl. H01L 21/20 (2006.01)
U.S. Cl. 438—22  [257/E33.076] 4 Claims
OG exemplary drawing
 
1. A method of manufacturing a white light emitting diode comprising a transparent inorganic oxide, and a phosphor layer to convert blue light into yellow light, provided on a blue light emitting diode, the method comprising the steps of:
forming the phosphor layer comprising an inorganic compound containing a phosphor, and
forming the transparent inorganic oxide as an oxide of at least one kind selected from Al, Si, Ti, Ge, P, B, Y, Sn, Pb, Gd, Lu, Sc, In, Mg, Ca, Sr and Ba via an aerosol deposition method by which particles in a vapor phase are deposited on a substrate via collision of the particles with a surface of the substrate in a vacuum.