Integrated circuit, e.g. optical detector, has inner volumes having surfaces on side of photosensitive element and lateral surfaces, respectively, where one of former surfaces has area smaller than area of one of lateral surface

摘要

The circuit has a light guide (6) with truncated cones having inner volumes (104, 204) and outer volumes (105, 205), respectively. The inner volumes have surfaces (101, 201) on a side of a photosensitive element, surfaces (103, 203) situated on a side of a light input face and lateral surfaces (102, 202), respectively. The outer volumes surround the inner volumes on a part of the lateral surfaces, where the surface (101) has an area smaller than an area of the surface (103). The area of the surface (103) is smaller than the cones. An independent claim is also included for the production of an integrated circuit.