Patents by Inventor Xiuyu Cai
Xiuyu Cai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20230417675Abstract: Light detection devices and related methods are provided. The devices may comprise a reaction structure for containing a reaction solution with a relatively high or low pH and a plurality of reaction sites that generate light emissions. The devices may comprise a device base comprising a plurality of light sensors, device circuitry coupled to the light sensors, and a plurality of light guides that block excitation light but permit the light emissions to pass to a light sensor. The device base may also include a shield layer extending about each light guide between each light guide and the device circuitry, and a protection layer that is chemically inert with respect to the reaction solution extending about each light guide between each light guide and the shield layer. The protection layer prevents reaction solution that passes through the reaction structure and the light guide from interacting with the device circuitry.Type: ApplicationFiled: September 11, 2023Publication date: December 28, 2023Applicant: Illumina, Inc.Inventors: Xiuyu CAI, Joseph Francis PINTO, Thomas A. BAKER, Tracy Helen FUNG
-
Patent number: 11781985Abstract: Light detection devices and related methods are provided. The devices may comprise a reaction structure for containing a reaction solution with a relatively high or low pH and a plurality of reaction sites that generate light emissions. The devices may comprise a device base comprising a plurality of light sensors, device circuitry coupled to the light sensors, and a plurality of light guides that block excitation light but permit the light emissions to pass to a light sensor. The device base may also include a shield layer extending about each light guide between each light guide and the device circuitry, and a protection layer that is chemically inert with respect to the reaction solution extending about each light guide between each light guide and the shield layer. The protection layer prevents reaction solution that passes through the reaction structure and the light guide from interacting with the device circuitry.Type: GrantFiled: December 22, 2022Date of Patent: October 10, 2023Assignee: Illumina, Inc.Inventors: Xiuyu Cai, Joseph Francis Pinto, Thomas A. Baker, Tracy Helen Fung
-
Publication number: 20230314326Abstract: An example sensor includes a flow cell, a detection device, and a controller. The flow cell includes a passivation layer having opposed surfaces and a reaction site at a first of the opposed surfaces. The flow cell also includes a lid operatively connected to the passivation layer to partially define a flow channel between the lid and the reaction site. The detection device is in contact with a second of the opposed surfaces of the passivation layer, and includes an embedded metal layer that is electrically isolated from other detection circuitry of the detection device. The controller is to ground the embedded metal layer.Type: ApplicationFiled: May 5, 2023Publication date: October 5, 2023Applicant: ILLUMINA, INC.Inventors: Tracy Helen FUNG, Xiuyu CAI, Lisa KWOK, Hai TRAN, Kevan SAMIEE, Liangliang QIANG, Boyan BOYANOV
-
Publication number: 20230207601Abstract: An example image sensor structure includes an image layer. The image layer includes an array of light detectors disposed therein. A device stack is disposed over the image layer. An array of light guides is disposed in the device stack. Each light guide is associated with at least one light detector of the array of light detectors. A passivation stack is disposed over the device stack. The passivation stack includes a bottom surface in direct contact with a top surface of the light guides. An array of nanowells is disposed in a top layer of the passivation stack. Each nanowell is associated with a light guide of the array of light guides. A crosstalk blocking metal structure is disposed in the passivation stack. The crosstalk blocking metal structure reduces crosstalk within the passivation stack.Type: ApplicationFiled: February 28, 2023Publication date: June 29, 2023Inventors: Xiuyu CAI, Ali AGAH, Tracy H. FUNG, Dietrich DEHLINGER
-
Publication number: 20230191391Abstract: Flow cells systems and corresponding methods are provided. The flow cells systems may include a socket comprising a base portion, a plurality of electrical contacts and a cover portion that includes a first port. The flow cells systems may also include a flow cell device secured within an enclosure of the socket. The flow cell device may comprise a frameless light detection device comprising a base wafer portion, a plurality of dielectric layers, a reaction structure, a plurality of light guides, a plurality of light sensors, and device circuitry electrically coupled to the light sensors. The flow cell device may also comprise a lid forming a flow channel over the reaction structure that includes a second port in communication with the flow channel and the first port of the socket. The device circuitry of the light detection device may be electrically coupled to the electrical contacts of the socket.Type: ApplicationFiled: February 8, 2023Publication date: June 22, 2023Applicant: Illumina, Inc.Inventors: Arnaud RIVAL, Ali AGAH, Dietrich DEHLINGER, Tracy H. FUNG, Xiuyu CAI
-
Patent number: 11680906Abstract: An example sensor includes a flow cell, a detection device, and a controller. The flow cell includes a passivation layer having opposed surfaces and a reaction site at a first of the opposed surfaces. The flow cell also includes a lid operatively connected to the passivation layer to partially define a flow channel between the lid and the reaction site. The detection device is in contact with a second of the opposed surfaces of the passivation layer, and includes an embedded metal layer that is electrically isolated from other detection circuitry of the detection device. The controller is to ground the embedded metal layer.Type: GrantFiled: April 19, 2018Date of Patent: June 20, 2023Assignee: ILLUMINA, INC.Inventors: Tracy Helen Fung, Xiuyu Cai, Lisa Kwok, Hai Tran, Kevan Samiee, Liangliang Qiang, Boyan Boyanov
-
Publication number: 20230125640Abstract: Light detection devices and related methods are provided. The devices may comprise a reaction structure for containing a reaction solution with a relatively high or low pH and a plurality of reaction sites that generate light emissions. The devices may comprise a device base comprising a plurality of light sensors, device circuitry coupled to the light sensors, and a plurality of light guides that block excitation light but permit the light emissions to pass to a light sensor. The device base may also include a shield layer extending about each light guide between each light guide and the device circuitry, and a protection layer that is chemically inert with respect to the reaction solution extending about each light guide between each light guide and the shield layer. The protection layer prevents reaction solution that passes through the reaction structure and the light guide from interacting with the device circuitry.Type: ApplicationFiled: December 22, 2022Publication date: April 27, 2023Applicant: Illumina, Inc.Inventors: Xiuyu CAI, Joseph Francis PINTO, Thomas A. BAKER, Tracy Helen FUNG
-
Patent number: 11610928Abstract: An example image sensor structure includes an image layer. The image layer includes an array of light detectors disposed therein. A device stack is disposed over the image layer. An array of light guides is disposed in the device stack. Each light guide is associated with at least one light detector of the array of light detectors. A passivation stack is disposed over the device stack. The passivation stack includes a bottom surface in direct contact with a top surface of the light guides. An array of nanowells is disposed in a top layer of the passivation stack. Each nanowell is associated with a light guide of the array of light guides. A crosstalk blocking metal structure is disposed in the passivation stack. The crosstalk blocking metal structure reduces crosstalk within the passivation stack.Type: GrantFiled: December 11, 2020Date of Patent: March 21, 2023Assignee: ILLUMINA, INC.Inventors: Xiuyu Cai, Ali Agah, Tracy H. Fung, Dietrich Dehlinger
-
Publication number: 20230076887Abstract: Disclosed is an apparatus and method of forming, including a supporting structure, a sensor on the supporting structure, a pair of columns on the supporting structure at opposite sides of the sensor, the pair of columns having a column height relative to a top surface of the supporting structure, the column height being higher than a height of the active surface of the sensor relative to the top surface of the supporting structure, and a lidding layer on the pair of columns and over the active surface, the lidding layer being supported at opposite ends by the pair of columns. The active surface of the sensor, the lidding layer and the pair of columns form an opening above at least more than about half of the active surface of the sensor, and the supporting structure, the sensor, the lidding layer and the pair of columns together form a flow cell.Type: ApplicationFiled: November 10, 2022Publication date: March 9, 2023Inventors: Donglai Lu, Xiuyu Cai, Wenyi Feng, Hai Tran
-
Patent number: 11543352Abstract: Light detection devices and related methods are provided. The devices may comprise a reaction structure for containing a reaction solution with a relatively high or low pH and a plurality of reaction sites that generate light emissions. The devices may comprise a device base comprising a plurality of light sensors, device circuitry coupled to the light sensors, and a plurality of light guides that block excitation light but permit the light emissions to pass to a light sensor. The device base may also include a shield layer extending about each light guide between each light guide and the device circuitry, and a protection layer that is chemically inert with respect to the reaction solution extending about each light guide between each light guide and the shield layer. The protection layer prevents reaction solution that passes through the reaction structure and the light guide from interacting with the device circuitry.Type: GrantFiled: March 2, 2021Date of Patent: January 3, 2023Assignee: ILLUMINA, INC.Inventors: Xiuyu Cai, Joseph Francis Pinto, Thomas A. Baker, Tracy Helen Fung
-
Patent number: 11519846Abstract: Disclosed is an apparatus and method of forming, including a supporting structure, a sensor on the supporting structure, a pair of columns on the supporting structure at opposite sides of the sensor, the pair of columns having a column height relative to a top surface of the supporting structure, the column height being higher than a height of the active surface of the sensor relative to the top surface of the supporting structure, and a lidding layer on the pair of columns and over the active surface, the lidding layer being supported at opposite ends by the pair of columns. The active surface of the sensor, the lidding layer and the pair of columns form an opening above at least more than about half of the active surface of the sensor, and the supporting structure, the sensor, the lidding layer and the pair of columns together form a flow cell.Type: GrantFiled: January 29, 2019Date of Patent: December 6, 2022Assignee: ILLUMINA, INC.Inventors: Donglai Lu, Xiuyu Cai, Wenyi Feng, Hai Tran
-
Publication number: 20220352228Abstract: An image sensor structure including an image stack disposed over a device stack. The image stack includes a plurality of light detectors. A first optical filter stack is disposed over the image stack. The first optical filter stack includes a light guide layer. Light pipe cavities are disposed in the light guide layer. Each light pipe cavity is associated with a light detector. Each light pipe cavity has an aspect ratio that is greater than about 2.5 to about 1. A nanowell layer is disposed over the first optical filter stack. Nanowells are disposed in the nanowell layer. Each nanowell is associated with a light detector.Type: ApplicationFiled: September 29, 2020Publication date: November 3, 2022Applicant: ILLUMINA, INC.Inventors: Arvin EMADI, Ali AGAH, Xiuyu CAI, Craig Lee HETHERINGTON
-
Patent number: 11374111Abstract: A semiconductor device that a fin structure, and a gate structure present on a channel region of the fin structure. A composite spacer is present on a sidewall of the gate structure including an upper portion having a first dielectric constant, a lower portion having a second dielectric constant that is less than the first dielectric constant, and an etch barrier layer between sidewalls of the first and second portion of the composite spacer and the gate structure. The etch barrier layer may include an alloy including at least one of silicon, boron and carbon.Type: GrantFiled: January 15, 2020Date of Patent: June 28, 2022Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, GLOBALFOUNDRIES INC., STMICROELECTRONICS, INC.Inventors: Xiuyu Cai, Chun-Chen Yeh, Qing Liu, Ruilong Xie
-
Patent number: 11256033Abstract: Light detection devices and corresponding methods are provided. The devices include a reaction structure to contain a reaction solution and at least one reaction site that generates light emissions in response to incident excitation light after treatment with the reaction solution. The devices also include a plurality of light sensors and device circuitry. The devices further include a plurality of light guides extending toward at least one corresponding light sensor from input regions that receive the excitation light and the light emissions from at least one corresponding reaction recess. The light guides comprise a first filter region that filters the excitation light and permits the light emissions of a first wavelength to pass to the at least one corresponding light sensor, and a second filter region that filters the excitation light and the permits light emissions of a second wavelength to pass to the at least one corresponding light sensor.Type: GrantFiled: May 6, 2020Date of Patent: February 22, 2022Assignee: ILLUMINA, INC.Inventor: Xiuyu Cai
-
Publication number: 20210208072Abstract: Light detection devices and related methods are provided. The devices may comprise a reaction structure for containing a reaction solution with a relatively high or low pH and a plurality of reaction sites that generate light emissions. The devices may comprise a device base comprising a plurality of light sensors, device circuitry coupled to the light sensors, and a plurality of light guides that block excitation light but permit the light emissions to pass to a light sensor. The device base may also include a shield layer extending about each light guide between each light guide and the device circuitry, and a protection layer that is chemically inert with respect to the reaction solution extending about each light guide between each light guide and the shield layer. The protection layer prevents reaction solution that passes through the reaction structure and the light guide from interacting with the device circuitry.Type: ApplicationFiled: March 2, 2021Publication date: July 8, 2021Applicant: Illumina, Inc.Inventors: Xiuyu CAI, Joseph Francis PINTO, Thomas A. BAKER, Tracy Helen FUNG
-
Publication number: 20210098521Abstract: An example image sensor structure includes an image layer. The image layer includes an array of light detectors disposed therein. A device stack is disposed over the image layer. An array of light guides is disposed in the device stack. Each light guide is associated with at least one light detector of the array of light detectors. A passivation stack is disposed over the device stack. The passivation stack includes a bottom surface in direct contact with a top surface of the light guides. An array of nanowells is disposed in a top layer of the passivation stack. Each nanowell is associated with a light guide of the array of light guides. A crosstalk blocking metal structure is disposed in the passivation stack. The crosstalk blocking metal structure reduces crosstalk within the passivation stack.Type: ApplicationFiled: December 11, 2020Publication date: April 1, 2021Inventors: Xiuyu CAI, Ali AGAH, Tracy H. FUNG, Dietrich DEHLINGER
-
Patent number: 10955343Abstract: Light detection devices and related methods are provided. The devices may comprise a reaction structure for containing a reaction solution with a relatively high or low pH and a plurality of reaction sites that generate light emissions. The devices may comprise a device base comprising a plurality of light sensors, device circuitry coupled to the light sensors, and a plurality of light guides that block excitation light but permit the light emissions to pass to a light sensor. The device base may also include a shield layer extending about each light guide between each light guide and the device circuitry, and a protection layer that is chemically inert with respect to the reaction solution extending about each light guide between each light guide and the shield layer. The protection layer prevents reaction solution that passes through the reaction structure and the light guide from interacting with the device circuitry.Type: GrantFiled: December 11, 2018Date of Patent: March 23, 2021Assignee: Illumina, Inc.Inventors: Xiuyu Cai, Joseph Francis Pinto, Thomas A. Baker, Tracy Helen Fung
-
Patent number: 10879296Abstract: An example image sensor structure includes an image layer. The image layer includes an array of light detectors disposed therein. A device stack is disposed over the image layer. An array of light guides is disposed in the device stack. Each light guide is associated with at least one light detector of the array of light detectors. A passivation stack is disposed over the device stack. The passivation stack includes a bottom surface in direct contact with a top surface of the light guides. An array of nanowells is disposed in a top layer of the passivation stack. Each nanowell is associated with a light guide of the array of light guides. A crosstalk blocking metal structure is disposed in the passivation stack. The crosstalk blocking metal structure reduces crosstalk within the passivation stack.Type: GrantFiled: December 4, 2018Date of Patent: December 29, 2020Assignee: ILLUMINA, INC.Inventors: Xiuyu Cai, Ali Agah, Tracy H. Fung, Dietrich Dehlinger
-
Publication number: 20200264376Abstract: Light detection devices and corresponding methods are provided. The devices include a reaction structure to contain a reaction solution and at least one reaction site that generates light emissions in response to incident excitation light after treatment with the reaction solution. The devices also include a plurality of light sensors and device circuitry. The devices further include a plurality of light guides extending toward at least one corresponding light sensor from input regions that receive the excitation light and the light emissions from at least one corresponding reaction recess. The light guides comprise a first filter region that filters the excitation light and permits the light emissions of a first wavelength to pass to the at least one corresponding light sensor, and a second filter region that filters the excitation light and the permits light emissions of a second wavelength to pass to the at least one corresponding light sensor.Type: ApplicationFiled: May 6, 2020Publication date: August 20, 2020Inventor: Xiuyu CAI
-
Patent number: 10749031Abstract: A large area electrical contact for use in integrated circuits features a non-planar, sloped bottom profile. The sloped bottom profile provides a larger electrical contact area, thus reducing the contact resistance, while maintaining a small contact footprint. The sloped bottom profile can be formed by recessing an underlying layer, wherein the bottom profile can be crafted to have a V-shape, U-shape, crescent shape, or other profile shape that includes at least a substantially sloped portion in the vertical direction. In one embodiment, the underlying layer is an epitaxial fin of a FinFET. A method of fabricating the low-resistance electrical contact employs a thin etch stop liner for use as a hard mask. The etch stop liner, e.g., HfO2, prevents erosion of an adjacent gate structure during the formation of the contact.Type: GrantFiled: September 23, 2016Date of Patent: August 18, 2020Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, STMICROELECTRONICS, INC., GLOBALFOUNDRIES, INCInventors: Xiuyu Cai, Qing Liu, Ruilong Xie, Chun-Chen Yeh