公开(公告)号：US20220302196A1

公开(公告)日：2022-09-22

申请号：US17835300

申请日：2022-06-08

Applicant: Raytheon Company

Inventor： Jonathan Getty ,  Bradly Eachus ,  David Brehl

IPC: H01L27/146 ,  H01L21/683

Abstract: A method of forming an image detector from an optical detector having a first side connected to a substrate and a second side opposite the first side. The method includes: receiving the detector; electrically coupling the second side of the detector to a read out integrated circuit (ROIC); securing the detector to the ROIC with an adhesive, wherein the adhesive surrounds the detector and at least a portion of the substrate. The method also includes chemically removing at least some of the substrate to expose an exposed portion of the first side of the detector. Such removal results in the formation of an adhesive fence from the adhesive that has a fence upper surface that is above the first side on which an optical element is mounted such that an air gap exists between the first side of the detector and the optical element.

公开(公告)号：US11588068B2

公开(公告)日：2023-02-21

申请号：US17100041

申请日：2020-11-20

Applicant: Raytheon Company

Inventor： Jamal Mustafa ,  Edward P. Smith ,  Bradly Eachus

IPC: H01L31/11 ,  H01L27/146 ,  H01L31/0304 ,  H01L31/18

Abstract: A photo detector having a substrate and a first structure formed on the substrate. The first structure includes an emitter layer formed on the substrate and a base layer formed on the emitter layer. Further, the first structure includes a collector layer formed on the base layer. The collector layer has a plasmonic structure. The plasmonic structure includes a first plurality of mesa structures. Each of the mesa structures of the first plurality of mesa structures includes a second plurality of mesa structures having ridges arranged in a regularly repeating pattern.

公开(公告)号：US11374050B2

公开(公告)日：2022-06-28

申请号：US16940310

申请日：2020-07-27

Applicant: Raytheon Company

Inventor： Michael J. Batinica ,  Bradly Eachus ,  Edward P. Smith

IPC: H04N5/369 ,  H04N5/351 ,  H04N5/378 ,  H01L27/146

Abstract: A unit cell of a focal plane array (FPA) is provided. The unit cell includes a first layer having a first absorption coefficient. The first layer is configured to: sense a first portion of a polarized light of an incident light having a first portion and a second portion, convert the first sensed portion of incident light into a first electrical signal, and pass through a second portion of the incident light. Further, the unit cell includes a second layer having a second absorption coefficient and positioned adjacent to the first layer and configured to receive the second portion of the incident light. The second layer is configured to convert the second portion of the incident light to a second electrical signal. Also, the unit cell includes a readout integrated circuit positioned adjacent to the second layer and configured to receive the first electrical signal and the second electrical signal.

公开(公告)号：US20210280626A1

公开(公告)日：2021-09-09

申请号：US16811467

申请日：2020-03-06

Applicant: RAYTHEON COMPANY

Inventor： Jonathan Getty ,  Bradly Eachus ,  David Brehl

IPC: H01L27/146 ,  H01L21/683

Abstract: A method of forming an image detector from an optical detector having a first side connected to a substrate and a second side opposite the first side. The method includes: receiving the detector; electrically coupling the second side of the detector to a read out integrated circuit (ROIC); securing the detector to the ROIC with an adhesive, wherein the adhesive surrounds the detector and at least a portion of the substrate. The method also includes chemically removing at least some of the substrate to expose an exposed portion of the first side of the detector. Such removal results in the formation of an adhesive fence from the adhesive that has a fence upper surface that is above the first side on which an optical element is mounted such that an air gap exists between the first side of the detector and the optical element.

公开(公告)号：US11728367B2

公开(公告)日：2023-08-15

申请号：US17835300

申请日：2022-06-08

Applicant: Raytheon Company

Inventor： Jonathan Getty ,  Bradly Eachus ,  David Brehl

IPC: H01L27/146 ,  H01L21/683

CPC classification number: H01L27/14634 ,  H01L21/6835 ,  H01L27/1469 ,  H01L27/14618 ,  H01L27/14621 ,  H01L27/14625 ,  H01L27/14627 ,  H01L27/14636 ,  H01L27/14685 ,  H01L2221/68381

Abstract: A method of forming an image detector from an optical detector having a first side connected to a substrate and a second side opposite the first side. The method includes: receiving the detector; electrically coupling the second side of the detector to a read out integrated circuit (ROIC); securing the detector to the ROIC with an adhesive, wherein the adhesive surrounds the detector and at least a portion of the substrate. The method also includes chemically removing at least some of the substrate to expose an exposed portion of the first side of the detector. Such removal results in the formation of an adhesive fence from the adhesive that has a fence upper surface that is above the first side on which an optical element is mounted such that an air gap exists between the first side of the detector and the optical element.

公开(公告)号：US20220165903A1

公开(公告)日：2022-05-26

申请号：US17100041

申请日：2020-11-20

Applicant: Raytheon Company

Inventor： Jamal Mustafa ,  Edward P. Smith ,  Bradly Eachus

IPC: H01L31/11 ,  H01L31/0304 ,  H01L27/146 ,  H01L31/18

Abstract: A photo detector having a substrate and a first structure formed on the substrate. The first structure includes an emitter layer formed on the substrate and a base layer formed on the emitter layer. Further, the first structure includes a collector layer formed on the base layer. The collector layer has a plasmonic structure. The plasmonic structure includes a first plurality of mesa structures. Each of the mesa structures of the first plurality of mesa structures includes a second plurality of mesa structures having ridges arranged in a regularly repeating pattern.

公开(公告)号：US20220028917A1

公开(公告)日：2022-01-27

申请号：US16940310

申请日：2020-07-27

Applicant: Raytheon Company

Inventor： Michael J. Batinica ,  Bradly Eachus ,  Edward P. Smith

IPC: H01L27/146 ,  H04N5/378 ,  H04N5/369 ,  H04N5/351

Abstract: A unit cell of a focal plane array (FPA) is provided. The unit cell includes a first layer having a first absorption coefficient. The first layer is configured to: sense a first portion of a polarized light of an incident light having a first portion and a second portion, convert the first sensed portion of incident light into a first electrical signal, and pass through a second portion of the incident light. Further, the unit cell includes a second layer having a second absorption coefficient and positioned adjacent to the first layer and configured to receive the second portion of the incident light. The second layer is configured to convert the second portion of the incident light to a second electrical signal. Also, the unit cell includes a readout integrated circuit positioned adjacent to the second layer and configured to receive the first electrical signal and the second electrical signal.