Patent ID: 8242518

Claim:
A lighting device comprising: a first substrate having first connection locations electrically connected to first conductors formed on the first substrate; a plurality of non-packaged light emitting dies, each of the plurality of non-packaged light emitting dies having a first die electrode and a second die electrode, the first die electrodes being aligned with and electrically connected to the first connection locations, respectively, without wire bonds; an intermediate layer over the first substrate, the intermediate layer having first holes corresponding to locations of the plurality of non-packaged light emitting dies on the first substrate such that each of the plurality of non-packaged light emitting dies is surrounded by walls of a corresponding first hole, a thickness of the intermediate layer being approximately a thickness of each of the non-packaged light emitting dies, the intermediate layer also having second holes corresponding to locations of electrical interconnectors, the second holes extending substantially through the thickness of the intermediate layer; and a second substrate, the intermediate layer disposed between the first substrate and the second substrate, the second substrate having second connection locations electrically connected to second conductors formed on the second substrate, the second die electrodes being substantially aligned with and electrically connected to the second connection locations, respectively, without wire bonds; wherein the plurality of non-packaged light emitting dies are sandwiched between the first substrate and the second substrate, wherein some of the first conductors and some of the second conductors are interconnected by the electrical interconnectors to create a series connection of at least some of the plurality of non-packaged light emitting dies without using wire bonds, and wherein at least one of the first substrate and second substrate has light passing locations for emitting light.