| 摘要 |
PURPOSE:To obtain an opto-electronic integrated circuit, which does never cause restrictions of the layout of elements even if the electronic circuit element is formed on a substrate surface different from a substrate surface formed with the photodetectors and is capable of reducing effectively the incidence of light to the electronic circuit element. CONSTITUTION:With photodetectors 2 formed on one main surface of a single GaAs substrate 1, an electronic circuit element 3 is formed on the other main surface of the substrate 1, a via hole 13 is provided in the substrate 1 and these elements are electrically connected to each other through wirings 7a and 7c. |
