Patent ID: 8664683

Claim:
An optical semiconductor device comprising: a carrier for enabling accurate positioning of a first optical element in relation to an optical semiconductor element, said carrier comprising: an electrically conductive multi-layer carrier base sheet having an upper carrier layer, a lower carrier layer, and an intermediate carrier layer between said upper carrier layer and said lower carrier layer, said upper carrier layer and said intermediate carrier layer having an upper conductor structure formed in said upper carrier layer and said intermediate carrier layer; and a patterned insulative spacer layer arranged on an upper carrier layer side of said carrier base sheet and arranged such that at least a portion of the patterned insulative spacer layer is disposed below said upper carrier layer, wherein: said patterned insulative spacer layer is patterned such that at least one cavity is formed in which said optical semiconductor element is connectable to said upper conductor structure, a depth of said cavity being greater than a height of the optical semiconductor element when connected to said carrier; and said cavity is formed to define a location of said first optical element in relation to said optical semiconductor element; the optical semiconductor element connected to said upper conductor structure in the cavity formed by said patterned insulative spacer layer; and said first optical element is provided in said location defined by said patterned insulative spacer layer.