公开(公告)号：US20220406829A1

公开(公告)日：2022-12-22

申请号：US17840437

申请日：2022-06-14

Applicant: STMicroelectronics (Crolles 2) SAS

Inventor： Maurin DOUIX

IPC: H01L27/146

Abstract: An integrated sensor includes a substrate made of a first semiconductor material having a first optical refractive index. The substrate includes a pixel array, wherein each pixel has a photosensitive active zone formed by an index contrast zone including a matrix of the first semiconductor material and a periodic structure embedded in the matrix. The periodic structure extends from the backside of the substrate and has a two-dimensional periodicity in a parallel plane with the backside. A value of the periodicity is linked with the wavelength of the optical signal and with the first refractive index. Elements of the periodic structure are formed of a second optically transparent material having a second refractive index less than the first refractive index. These elements are positioned at locations defined by the periodicity except for at one location defining a region, preferably central, that is devoid of a corresponding one of the elements.

公开(公告)号：US20170075148A1

公开(公告)日：2017-03-16

申请号：US15084645

申请日：2016-03-30

Applicant: STMICROELECTRONICS (CROLLES 2) SAS

Inventor： Charles BAUDOT ,  Maurin DOUIX ,  Frédéric BOEUF ,  Sébastien CREMER

IPC: G02F1/025

CPC classification number: G02F1/025 ,  G02F2001/0151

Abstract: An E/O phase modulator may include a waveguide having an insulating substrate, a single-crystal silicon strip and a polysilicon strip of a same thickness and doped with opposite conductivity types above the insulating substrate, and an insulating interface layer between the single-crystal silicon strip and polysilicon strip. Each of the single-crystal silicon strip and polysilicon strip may be laterally continued by a respective extension, and a respective electrical contact coupled to each extension.

Abstract translation: E / O相位调制器可以包括具有绝缘衬底，单晶硅条和相同厚度的多晶硅条的波导，并且在绝缘衬底之上掺杂相反导电类型，并且在单晶之间的绝缘界面层 硅带和多晶硅条。 单晶硅带和多晶硅条中的每一个可以通过相应的延伸部横向连续，并且相应的电触点耦合到每个延伸部。