Patent ID: 8685771
Filing Date: 2014-04-01
Classification: B82Y,H01L,H01S

Abstract:
1. A process for fabricating light-emitting devices, each light-emitting device having an active zone in which a light beam having one or more wavelengths can propagate along a propagation direction, and a first wall comprising subwavelength structures smaller in size than the wavelength in a direction transverse to the propagation direction of the light beam enabling the reflectivity of the wall to be adjusted, the process comprising: producing a single mask; etching, through the single mask, in a substrate consisting of a stack of layers of semiconductor material forming an emissive cavity, the subwavelength structures and cleavage lines defining the light emitting device during the same etching operation; and the first wall comprising the subwavelength structures and constituting an antireflection structure providing an antireflection function, comprising a reflectivity of less than about 10% with respect to the wavelength or wavelengths.