公开(公告)号：US12208637B2

公开(公告)日：2025-01-28

申请号：US18167682

申请日：2023-02-10

Applicant: Applied Materials, Inc.

Inventor： Yingdong Luo ,  Jinyu Lu ,  Takashi Kuratomi ,  Alexia Adilene Portillo Rivera ,  Xiaopei Deng ,  Zhengping Yao ,  Daihua Zhang ,  Rami Hourani ,  Ludovic Godet

IPC: B41M3/00 ,  B41J11/00 ,  G02B27/01

Abstract: Embodiments of the present disclosure generally relate to optical devices. More specifically, embodiments described herein relate to optical devices and methods of manufacturing a patterned optical device film on an optical device substrate. According to certain embodiments, an inkjet deposition process is used to deposit a patterned inkjet coating layer on the optical device substrate. A deposition process may then be used to deposit an optical device material on the patterned inkjet coating and the optical device substrate. The patterned inkjet coating on the optical device substrate may then be washed with an appropriate detergent to lift-off the patterned inkjet coating layer from the optical device substrate to form the patterned optical device film.

公开(公告)号：US11888093B2

公开(公告)日：2024-01-30

申请号：US17389029

申请日：2021-07-29

Applicant: Applied Materials, Inc.

Inventor： Daihua Zhang ,  Yingdong Luo ,  Mingwei Zhu ,  Hou T. Ng ,  Sivapackia Ganapathiappan ,  Nag B. Patibandla

IPC: H01L33/44 ,  H01L33/50 ,  H01L25/075 ,  H01L33/58 ,  H01L33/62 ,  H01L33/00 ,  H01L21/70 ,  H01L21/02 ,  H01L21/027 ,  H01L27/15

CPC classification number: H01L33/44 ,  H01L21/027 ,  H01L21/02104 ,  H01L21/70 ,  H01L21/707 ,  H01L25/0753 ,  H01L27/153 ,  H01L33/00 ,  H01L33/0093 ,  H01L33/505 ,  H01L33/58 ,  H01L33/62 ,  H01L2933/0041 ,  H01L2933/0058 ,  H01L2933/0066

Abstract: A multi-color display includes a backplane having backplane circuitry, an array of micro-LEDs electrically integrated with backplane circuitry of the backplane, a first color conversion layer over each of a first plurality of light emitting diodes, a second color conversion layer over each of a second plurality of light emitting diodes, and a plurality of isolation walls separating adjacent micro-LEDs of the array. The micro-LEDs of the array are configured to generate illumination of the same wavelength range, the first color conversion layer converts the illumination to light of a first color, and the second color conversion layer converts the illumination to light of a different second color.

公开(公告)号：US11867931B2

公开(公告)日：2024-01-09

申请号：US17448619

申请日：2021-09-23

Applicant: Applied Materials, Inc.

Inventor： Kang Luo ,  Xiaopei Deng ,  Daihua Zhang ,  Ludovic Godet

IPC: G02B5/18 ,  G03F7/00 ,  G03F7/16

CPC classification number: G02B5/1857 ,  G03F7/0005 ,  G03F7/16

Abstract: Embodiments of the present disclosure generally relate to optical devices. More specifically, embodiments described herein relate to optical devices and methods of manufacturing optical devices having optical device structures with at least one of varying depths or refractive indices across the surface of a substrate. According to certain embodiments, an inkjet process is used to deposit a volumetrically variable optical device that is etched to form a diffractive optic element (DOE). Volumetrically variable can relate to the thickness of the optical device, or the relative volume of two or more diffractive materials deposited in combination. According to other embodiments, a single-profile DOE is deposited on a substrate and an inkjet process deposits a volumetrically variable organic material over the DOE. The DOE and organic material are etched to modify the profile of the structure, after which the organic material is removed, leaving the modified-profile DOE.

公开(公告)号：US20230006110A1

公开(公告)日：2023-01-05

申请号：US17901831

申请日：2022-09-01

Applicant: Applied Materials, Inc.

Inventor： Yingdong Luo ,  Daihua Zhang ,  Hou T. Ng ,  Sivapackia Ganapathiappan ,  Nag B. Patibandla

IPC: H01L33/50 ,  H01L33/30 ,  H01L27/15

Abstract: A photocurable composition includes quantum dots, quantum dot precursor materials, a chelating agent, one or more monomers, and a photoinitiator. The quantum dots are selected to emit radiation in a first wavelength band in the visible light range in response to absorption of radiation in a second wavelength band in the UV or visible light range. The second wavelength band is different than the first wavelength band. The quantum dot precursor materials include metal atoms or metal ions corresponding to metal components present in the quantum dots. The chelating agent is configured to chelate the quantum dot precursor materials. The photoinitiator initiates polymerization of the one or more monomers in response to absorption of radiation in the second wavelength band.

公开(公告)号：US20220293816A1

公开(公告)日：2022-09-15

申请号：US17691091

申请日：2022-03-09

Applicant: Applied Materials, Inc.

Inventor： Hou T. Ng ,  Daihua Zhang ,  Nag B. Patibandla

IPC: H01L33/00 ,  H01L25/075 ,  H01L21/67

Abstract: An LED display fabrication tool includes a plurality of process chambers and a plurality of transfer chambers. The plurality of process chambers include first and second dispensing chambers to deliver first and second color conversion precursors onto a workpiece for fabrication of a light emitting diode (LED) displays, and first and second washing/drying chambers to remove uncured portions of the first and second color conversion precursors from the workpiece and then dries the workpiece. The plurality of transfer chambers are coupled to two process chambers by two respective sealable ports. First and second curing stations cure the precursors to form the first and second color conversion layers over a first set of LEDs on the workpiece.

公开(公告)号：US11367643B2

公开(公告)日：2022-06-21

申请号：US16838981

申请日：2020-04-02

Applicant: Applied Materials, Inc

Inventor： Daihua Zhang ,  Hou T. Ng ,  Nag B. Patibandla ,  Sivapackia Ganapathiappan ,  Yingdong Luo ,  Kyuil Cho ,  Han-Wen Chen

IPC: H01L21/68 ,  H01L21/67 ,  H01L21/02

Abstract: A method for printing on a substrate includes printing a support structure by printing a liquid precursor material and curing the liquid precursor material, printing one or more alignment markers by printing the liquid precursor material outside the support structure and curing the liquid precursor material, positioning a substrate within the support structure, performing a registration of the substrate using the one or more alignment markers, and printing one or more device structures on the substrate while registered by printing and curing the liquid precursor material.

公开(公告)号：US20220016708A1

公开(公告)日：2022-01-20

申请号：US17375853

申请日：2021-07-14

Applicant: Applied Materials, Inc.

Inventor： Hou T. Ng ,  Daihua Zhang ,  Nag B. Patibandla

IPC: B22F10/28 ,  B22F12/30 ,  B22F12/53 ,  B22F12/63 ,  B22F12/67 ,  B22F12/90 ,  B22F12/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: Methods and systems for additive manufacturing can include a modular spreader unit including multiple spreaders that collectively span the width of a large build area. The spreaders can be arranged in offset rows so that spreaders in a second row cover gaps between spreaders in a first row. The spreaders can be secured with quick release mechanisms for rapid replacement and adjustment during service intervals.

公开(公告)号：US11007570B2

公开(公告)日：2021-05-18

申请号：US15927957

申请日：2018-03-21

Applicant: Applied Materials, Inc.

Inventor： Hou T. Ng ,  Nag B. Patibandla ,  Daihua Zhang

IPC: B22F3/00 ,  B33Y30/00 ,  B28B1/00 ,  C04B35/624 ,  C04B35/111 ,  C04B35/50 ,  C04B35/626 ,  C04B35/581 ,  C04B35/584 ,  C04B35/634 ,  B28B7/46 ,  C04B35/14 ,  B29C64/393 ,  B29C64/165 ,  B29C64/336 ,  B22F1/00 ,  B22F3/105 ,  C04B35/64 ,  B33Y10/00 ,  B22F3/10 ,  B22F3/15 ,  B28B11/24 ,  B33Y40/00 ,  B33Y50/02

Abstract: An additive manufacturing apparatus includes a platform, one or more supports positioned above the platform, an actuator, a first dispenser system configured dispense a plurality of successive layers of powder onto a build area supported by the platform, a first binder material dispenser configured to selectively dispense a first binder material on a voxel-by-voxel basis to an uppermost layer of powder in the build area, and an energy source configured to emit radiation toward the platform so as to solidify the binder material. The first dispenser system includes a first powder dispenser that is attached to and moves with a first support from the one or more supports and is configured to selectively dispense a first powder onto the build area, and a second powder dispenser that is configured to selectively dispense the second powder onto the build area.

公开(公告)号：US20200373279A1

公开(公告)日：2020-11-26

申请号：US16422879

申请日：2019-05-24

Applicant: Applied Materials, Inc.

Inventor： Sivapackia Ganapathiappan ,  Yingdong Luo ,  Daihua Zhang ,  Hou T. Ng ,  Mingwei Zhu ,  Nag B. Patibandla

IPC: H01L25/075 ,  C09K11/02 ,  G03F7/028 ,  G03F7/00

Abstract: A photocurable composition includes a nanomaterial selected to emit radiation in a first wavelength band in the visible light range in response to absorption of radiation in a second wavelength band in the UV or visible light range, one or more (meth)acrylate monomers, and a photoinitiator that initiates polymerization of the one or more (meth)acrylate monomers in response to absorption of radiation in the second wavelength band. The second wavelength band is different than the first wavelength band. A light-emitting device includes a plurality of light-emitting diodes and the cured photocurable composition in contact with a surface through which radiation in a first wavelength band in the UV or visible light range is emitted from each of the light-emitting diodes.

公开(公告)号：US20190201975A1

公开(公告)日：2019-07-04

申请号：US15927922

申请日：2018-03-21

Applicant: Applied Materials, Inc.

Inventor： Hou T. Ng ,  Nag B. Patibandla ,  Daihua Zhang

IPC: B22F3/00 ,  B28B1/00 ,  B33Y30/00

Abstract: An additive manufacturing apparatus includes a platform, one or more supports positioned above the platform, an actuator, a first powder dispenser that is attached to and moves with a first support from the one or more supports and is configured to selectively dispense a first powder onto the build area, a first binder material dispenser configured to selectively dispense a first binder material on a voxel-by-voxel basis to an uppermost layer of powder in the build area to form a volume of the layer having powder and binder material and corresponding to a cross-sectional portion of a part being built, a third dispensing system configured to deliver a densification material to the layer of powder or the combined layer of powder and binder material, and an energy source configured to emit radiation toward the platform so as to solidify the binder material.