Patent ID: 7804099

Claim:
A solid-state light source comprising a stack of elements, said elements comprising: a substrate-free inorganic light emitting diode chip; and a first wavelength conversion chip, wherein said substrate-free inorganic light emitting diode chip has a multilayer semiconductor structure that includes a first doped layer, a first electrode in electrical contact with said first doped layer, a second doped layer, a second electrode in electrical contact with said second doped layer, and an active region interposed between said first doped layer and said second doped layer, wherein said active region emits internally generated light in a first wavelength range and wherein said multilayer semiconductor structure is at least 10 microns thick; and wherein said first wavelength conversion chip is attached to said inorganic light emitting diode chip by a transparent bonding layer and wherein said first wavelength conversion chip converts at least a portion of said light of a first wavelength range into light of a second wavelength range, said second wavelength range being different from said first wavelength range.