Patent ID: 9583644
Date: 2017-02-28
CPC Classifications: G01B,G02B,H01L,Y02E

Claim:
1. A semiconductor optical device comprising: a substrate including a primary surface, the primary surface having first, second, third and fourth areas; a first conductivity-type semiconductor layer disposed on the third and fourth areas; a first semiconductor laminate for a photodiode, the first semiconductor laminate being disposed on the first conductivity-type semiconductor layer in the third area; a second semiconductor laminate for an optical waveguide, the second semiconductor laminate being disposed on the first conductivity-type semiconductor layer in the fourth area; a third semiconductor laminate disposed on the first conductivity-type semiconductor layer in the third area; a resin body disposed on the second, third and fourth areas; a first electrode connected with the first semiconductor laminate through a first opening of the resin body in the third area; a first pad electrode disposed on the first area; and a wiring conductor disposed on the resin body, the wiring conductor connecting the first electrode to the first pad electrode, the first semiconductor laminate having first, second, third and fourth sides, the second semiconductor laminate forming a butt-joint junction with the first side of the first semiconductor laminate to be coupled with the photodiode, the third semiconductor laminate being in contact with the second side of the first semiconductor laminate, the third and fourth sides of the first semiconductor laminate being covered with a semiconductor protective film disposed on the second area, the resin body covering the semiconductor protective film, the first semiconductor laminate, the second semiconductor laminate and the third semiconductor laminate, the first semiconductor laminate including a second conductivity-type semiconductor layer, the second conductivity-type semiconductor layer being in contact with the first electrode, the wiring conductor extending on a first side and a top of the resin body in the second and third areas and extending on the first area to the first pad electrode, and the first side of the resin body being disposed in the second area.