公开(公告)号：US20190094462A1

公开(公告)日：2019-03-28

申请号：US16185654

申请日：2018-11-09

Applicant: STMicroelectronics SA ,  STMicroelectronics (Crolles 2) SAS

Inventor： Jean-Robert Manouvrier ,  Jean-Francois Carpentier ,  Patrick LeMaitre

IPC: G02B6/124 ,  G02F1/025 ,  G02B6/30

Abstract: An electro-optic device may include a photonic chip having an optical grating coupler at a surface. The optical grating coupler may include a first semiconductor layer having a first base and first fingers extending outwardly from the first base. The optical grating coupler may include a second semiconductor layer having a second base and second fingers extending outwardly from the second base and being interdigitated with the first fingers to define semiconductor junction areas, with the first and second fingers having a non-uniform width. The electro-optic device may include a circuit coupled to the optical grating coupler and configured to bias the semiconductor junction areas and change one or more optical characteristics of the optical grating coupler.

公开(公告)号：US20180329144A1

公开(公告)日：2018-11-15

申请号：US15971665

申请日：2018-05-04

Applicant: STMicroelectronics (Crolles 2) SAS

Inventor： Patrick Le Maitre ,  Jean-Francois Carpentier

IPC: G02B6/28

CPC classification number: G02B6/2821 ,  G02B6/12004 ,  G02B6/125 ,  G02B2006/12061 ,  G02B2006/12097 ,  G02B2006/12147 ,  G02B2006/12159

Abstract: The disclosure relates to an optical splitter including two waveguides on either side of an axis. Each waveguide includes a first segment and a second segment that are closer to the axis than the rest of the waveguide. The first segments are optically coupled and the second segments are optically coupled. Each guide includes between the first and second segment, starting from the first segment, a first curved section including in succession a curvature the concavity of which is turned the side opposite the axis then a curvature the concavity of which is turned towards the axis, and starting from the second segment a second curved section including in succession a curvature the concavity of which is turned the side opposite the axis then a curvature the concavity of which is turned towards the axis. The first curved sections of the two waveguides are curved differently.

公开(公告)号：US09647625B2

公开(公告)日：2017-05-09

申请号：US14084394

申请日：2013-11-19

Applicant: STMicroelectronics SA ,  STMicroelectronics (Crolles 2) SAS

Inventor： David Petit ,  Sylvain Joblot ,  Pierre Bar ,  Jean-Francois Carpentier ,  Pierre Dautriche

IPC: H03H3/02 ,  H03H9/02 ,  H03H3/04 ,  H03H9/00 ,  H03H9/17 ,  G02F1/1337 ,  G01N29/02

CPC classification number: H03H3/02 ,  G01N29/022 ,  G02F1/133707 ,  H03H3/04 ,  H03H9/0028 ,  H03H9/02102 ,  H03H9/175 ,  Y10T29/42 ,  Y10T29/49005 ,  Y10T29/49155

Abstract: A method for manufacturing a wafer on which are formed resonators, each resonator including, above a semiconductor substrate, a stack of layers including, in the following order from the substrate surface: a Bragg mirror; a compensation layer made of a material having a temperature coefficient of the acoustic velocity of a sign opposite to that of all the other stack layers; and a piezoelectric resonator, the method including the successive steps of: a) depositing the compensation layer; and b) decreasing thickness inequalities of the compensation layer due to the deposition method, so that this layer has a same thickness to within better than 2%, and preferably to within better than 1%, at the level of each resonator.

公开(公告)号：US11199731B2

公开(公告)日：2021-12-14

申请号：US17064385

申请日：2020-10-06

Applicant: STMicroelectronics (Crolles 2) SAS ,  Commissariat a l'Energie Atomique et aux Energies Alternatives

Inventor： Patrick Le Maitre ,  Nicolas Michit ,  Jean-Francois Carpentier ,  Benoit Charbonnier

IPC: G01R19/30 ,  G02B6/12 ,  G02F1/01 ,  H01L31/0352 ,  H01L31/103 ,  H01L31/105 ,  G02F1/025

Abstract: A device, includes: a ring waveguide; a diode comprising a junction extending at least partly in the ring waveguide; and a first circuit configured to supply a signal representative of a leakage current in the diode.

公开(公告)号：US20190339551A1

公开(公告)日：2019-11-07

申请号：US16401956

申请日：2019-05-02

Applicant: STMicroelectronics (Crolles 2) SAS ,  Commissariat a l'Energie Atomique et aux Energies Alternatives

Inventor： Patrick Le Maitre ,  Nicolas Michit ,  Jean-Francois Carpentier ,  Benoit Charbonnier

IPC: G02F1/025 ,  G01R19/30

Abstract: A device, includes: a ring waveguide; a diode comprising a junction extending at least partly in the ring waveguide; and a first circuit configured to supply a signal representative of a leakage current in the diode.

公开(公告)号：US10161830B2

公开(公告)日：2018-12-25

申请号：US15460425

申请日：2017-03-16

Applicant: STMicroelectronics (Crolles 2) SAS

Inventor： Patrick Le Maitre ,  Jean-Francois Carpentier

IPC: G01M11/00 ,  H04B10/07

Abstract: An intermediate signal is separated into a first sub-signal and a second sub-signal according to a separation coefficient having a known real value. The first sub-signal is delivered to a first photonic circuit containing at least one photonic device to be characterized and a first photonic part. The second sub-signal is delivered to a second photonic circuit containing a second photonic part having a same transfer function as the first photonic part but lacking the at least one photonic device. Optical output signals from the first and second photonic circuits are converted into first and second electrical signals. Losses of the at least one photonic device are determined from processing the electrical signals and from the known real value of the separation coefficient.

公开(公告)号：US10012792B2

公开(公告)日：2018-07-03

申请号：US15217100

申请日：2016-07-22

Applicant: STMICROELECTRONICS (CROLLES 2) SAS

Inventor： Jean-Francois Carpentier ,  Patrick Lemaitre ,  Mickael Fourel

IPC: G02B6/42 ,  G02B6/12 ,  G02B6/30 ,  H01L23/13 ,  H01L23/498

CPC classification number: G02B6/12002 ,  G02B6/12004 ,  G02B6/30 ,  G02B6/4232 ,  G02B6/4257 ,  G02B6/4269 ,  G02B6/428 ,  G02B6/4292 ,  H01L23/13 ,  H01L23/49827 ,  H01L2224/16225

Abstract: An integrated electronic device includes a substrate having an opening extending therethrough. The substrate includes an interconnection network, and connections coupled to the interconnection network. The connections are to be fixed on a printed circuit board. An integrated photonic module is electrically connected to the substrate, with a portion of the integrated photonic module in front of or overlapping the opening of the substrate. An integrated electronic module is electrically connected to the photonic module, and extends at least partly into the opening of the substrate. The electronic module and the substrate may be electrically connected onto the same face of the photonic module.

公开(公告)号：US20180031443A1

公开(公告)日：2018-02-01

申请号：US15460425

申请日：2017-03-16

Applicant: STMicroelectronics (Crolles 2) SAS

Inventor： Patrick Le Maitre ,  Jean-Francois Carpentier

IPC: G01M11/00

CPC classification number: G01M11/33 ,  G01M11/30 ,  H04B10/07

Abstract: An intermediate signal is separated into a first sub-signal and a second sub-signal according to a separation coefficient having a known real value. The first sub-signal is delivered to a first photonic circuit containing at least one photonic device to be characterized and a first photonic part. The second sub-signal is delivered to a second photonic circuit containing a second photonic part having a same transfer function as the first photonic part but lacking the at least one photonic device. Optical output signals from the first and second photonic circuits are converted into first and second electrical signals. Losses of the at least one photonic device are determined from processing the electrical signals and from the known real value of the separation coefficient.

公开(公告)号：US09791346B1

公开(公告)日：2017-10-17

申请号：US15133614

申请日：2016-04-20

Applicant: STMICROELECTRONICS SA ,  STMICROELECTRONICS (CROLLES 2) SAS

Inventor： Jean-Francois Carpentier ,  Patrick Lemaitre ,  Jean-Robert Manouvrier ,  Charles Baudot ,  Bertrand Borot

IPC: G01B9/00 ,  G01M11/02 ,  G02B6/28 ,  G02B6/34 ,  G02B6/12

CPC classification number: G01M11/02 ,  G01R31/2656 ,  G01R31/27 ,  G01R31/2884 ,  G01R31/303 ,  G01R31/311 ,  G01R31/31728 ,  G01R35/00 ,  G02B6/00 ,  G02B6/12004 ,  G02B6/2808 ,  G02B6/34

Abstract: A semiconductor device may include a semiconductor wafer, and a reference circuit carried by the semiconductor wafer. The reference circuit may include optical DUTs, a first set of photodetectors coupled to outputs of the optical DUTs, an optical splitter coupled to inputs of the optical DUTs, and a second set of photodetectors coupled to the optical splitter. The optical splitter is to be coupled to an optical source and configured to transmit a reference optical signal to the first set of photodetectors via the optical DUTs and the second set of photodetectors.

公开(公告)号：US09645469B2

公开(公告)日：2017-05-09

申请号：US14836011

申请日：2015-08-26

Applicant: STMICROELECTRONICS (CROLLES 2) SAS ,  STMICROELECTRONICS SA

Inventor： Patrick Lemaitre ,  Jean-Francois Carpentier ,  Charles Baudot ,  Jean-Robert Manouvrier

IPC: G02F1/225 ,  G02F1/025 ,  G02F1/21

CPC classification number: G02F1/225 ,  G02F1/025 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2203/15

Abstract: An electro-optic (E/O) device includes an asymmetric optical coupler having an input and first and second outputs, a first optical waveguide arm coupled to the first output of the first asymmetric optical coupler, and a second optical waveguide arm coupled to the second output of the first asymmetric optical coupler. At least one E/O amplitude modulator is coupled to at least one of the first and second optical waveguide arms. An optical combiner is coupled to the first and second optical waveguide arms downstream from the at least one E/O amplitude modulator.