Optical semiconductor device and method for manufacturing the same

摘要

An optical semiconductor device having a first lead (3) for an optical semiconductor chip (2) to be mounted on and a second lead (4a) for a wire (5) being extended from the optical semiconductor chip (2) mounted on the first lead (3) to be joined to, the device being capable of reducing the possibility of a break of the wire (5) even under a thermal shock and the like. The optical semiconductor device can include: a first lead (3) for an optical semiconductor chip (2) to be mounted on; a second lead (4a) for a wire (5) (for example, gold wire) being extended from the optical semiconductor chip (2) mounted on the first lead (3) to be joined to; a holder part (6) for supporting the first lead (3) and the second lead (4a) at two locations each; a lens part (7); and a light-transmitting sealing part (8). The second lead (4) is separated into two lead pieces (4a, 4b) with a predetermined gap (‰  0) therebetween as seen in a plan view, within the inside space of the holder part (6) by which the second lead (4a) is supported at two locations.