Abstract:
The infrared detector device (1) comprises a PN junction (9, 10) formed by a first semiconductor material region (9) doped with rare earth ions and by a second semiconductor material region (10) of opposite doping type (P). The detector device comprises a waveguide (8) formed by a projecting structure (6) extending on a substrate (2) including a reflecting layer (4) and laterally delimited by a protection and containment oxide region (11). At least one portion of the waveguide (8) is formed by the PN junction and has an end fed with light to be detected. The detector device (1) has electrodes (18, 13) disposed laterally to and on the waveguide (8) to allow an efficient gathering of charge carriers generated by photoconversion.
Abstract:
Semiconductor power device comprising a semiconductor layer (1) of a first type of conductivity, wherein a body region (2) of a second type of conductivity comprising source regions (3) of the first type of conductivity is formed, a gate oxide layer (4) superimposed to the semiconductor layer (1) with an opening over the body region (2), polysilicon regions (5) superimposed to the gate oxide layer (4), and regions of a first insulating material (6) superimposed to the polysilicon regions (5). The device comprises regions of a second insulating material (10) situated on side of both the polysilicon regions (5) and the regions of a first insulating material (6) and over zones (14) of the gate oxide layer (4) situated near the opening on the body region (2), oxide regions (9) interposed between the polysilicon regions (5) and the regions of a second insulating material (10), oxide spacers (8) superimposed to the regions of a second insulating material (10).