Lighting system

• US 7,122,825 B2
• Filed: 03/30/2005
• Issued: 10/17/2006
• Est. Priority Date: 07/18/2000
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Doi, Masato, Oohata, Toyoharu, Okuyama, Hiroyuki, Biwa, Goshi, Kikutani, Tomoyuki
• Primary Examiner(s): Whitehead, Jr., Carl
• Assistant Examiner(s): Dolan, Jennifer M
• Application Number:
  US11/093,795
• Publication Number:
  US 20050167675A1
• Time in Patent Office: 566 Days
• Field of Search: 257/15, 257/22, 257/76, 257/E33.003, 257/E33.025, 257/E33.026, 372/5, 372/43.01, 372/44.011
• US Class Current: 257/13
• CPC Class Codes: H01L 21/02381 Silicon, silicon germanium, germanium
• CPC Class Codes: H01L 21/02395 Arsenides
• CPC Class Codes: H01L 21/02409 Selenides
• CPC Class Codes: H01L 21/02411 Tellurides
• CPC Class Codes: H01L 21/02521 Materials
• CPC Class Codes: H01L 21/02532 Silicon, silicon germanium, germanium
• CPC Class Codes: H01L 21/02543 Phosphides
• CPC Class Codes: H01L 21/02546 Arsenides
• CPC Class Codes: H01L 21/0256 Selenides
• CPC Class Codes: H01L 21/02562 Tellurides
• CPC Class Codes: H01L 21/02573 Conductivity type
• CPC Class Codes: H01L 21/0262 Reduction or decomposition of gaseous compounds, e.g. CVD
• CPC Class Codes: H01L 21/02642 Mask materials other than SiO2 or SiN
• CPC Class Codes: H01L 2224/48137 the bodies being arranged next to each other, e.g. on a common substrate
• CPC Class Codes: H01L 2224/48139 with an intermediate bond, e.g. continuous wire daisy chain
• CPC Class Codes: H01L 33/007 comprising nitride compounds
• CPC Class Codes: H01L 33/0075 comprising nitride compounds
• CPC Class Codes: H01L 33/24 of the light emitting region, e.g. non-planar junction
• CPC Class Codes: H01L 33/32 containing nitrogen

Abstract

Semiconductor light-emitting devices are provided. The semiconductor light-emitting devices include a substrate and a crystal layer selectively grown thereon at least a portion of the crystal layer is oriented along a plane that slants to or diagonally intersect a principal plane of orientation associated with the substrate thereby for example, enhancing crystal properties, preventing threading dislocations, and facilitating device miniaturization and separation during manufacturing and use thereof.

Claims

1. A lighting system comprising:

a plurality of semiconductor light-emitting device arranged so as to emit light in response to a signal, each of the semiconductor light-emitting devices comprising a substrate including a substrate surface positioned along a substrate surface plane, a crystal layer comprising an approximately hexagonal prismoid, having a face oriented about an S-plane, and a top region oriented about a C-plane, and a layer of a first conductivity type, an active layer, and a layer of a second conductivity type each formed along at least a portion of the approximately hexagonal prismoid.