公开(公告)号：US11724314B2

公开(公告)日：2023-08-15

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 ,  B22F12/00 ,  B33Y30/00 ,  B33Y40/00 ,  B22F12/90 ,  B33Y50/00 ,  B33Y10/00

CPC classification number: B22F10/28 ,  B22F12/222 ,  B22F12/224 ,  B22F12/30 ,  B22F12/53 ,  B22F12/63 ,  B22F12/67 ,  B22F12/90 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y10/00 ,  B33Y50/00

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：US20220288878A1

公开(公告)日：2022-09-15

申请号：US17692010

申请日：2022-03-10

Applicant: Applied Materials, Inc.

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

IPC: B29D11/00 ,  G02B5/28

Abstract: A method of fabricating a multi-color display includes dispensing a first photo-curable fluid through apertures in a first mask into a first plurality of wells in a display. A first plurality of light emitting diodes are activated to illuminate and cure the first photo-curable fluid to form a first color conversion layer over each of the first plurality of light emitting diodes, and an uncured remainder of the first photo-curable fluid is removed. A second photo-curable fluid is dispensed through apertures in a second mask into a second plurality of wells in the display. A second plurality of light emitting diodes are activated to illuminate and cure the second photo-curable fluid to form a second color conversion layer over each of the second plurality of light emitting diodes. An uncured remainder of the second photo-curable fluid is removed.

公开(公告)号：US20220189933A1

公开(公告)日：2022-06-16

申请号：US17587524

申请日：2022-01-28

Applicant: Applied Materials, Inc.

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

IPC: H01L25/075 ,  H01L33/00 ,  H01L33/50 ,  H01L33/32

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 cover layer spanning the LEDs and having a plurality of recesses, and first and second color conversion layers. Each recess of the plurality of recesses positioned over a corresponding micro-LED from the plurality of micro-LEDs, the first color conversion layer is in each recess over a first plurality of LEDs to convert the illumination from the first plurality of LEDs to light of a first color, and the second color conversion layer is in each recess over a second plurality of LEDs to convert the illumination from the second plurality of LEDs to light of a different second color.

公开(公告)号：US20220069173A1

公开(公告)日：2022-03-03

申请号：US17006624

申请日：2020-08-28

Applicant: Applied Materials, Inc.

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

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

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：US20220029068A1

公开(公告)日：2022-01-27

申请号：US17380998

申请日：2021-07-20

Applicant: Applied Materials, Inc.

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

IPC: H01L33/50 ,  H01L27/15 ,  H01L33/56 ,  C09K11/02 ,  C08F22/14

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. The second wavelength band is different than the first wavelength band. The photocurable composition further includes one or more (meth)acrylate monomers, a thiol crosslinker, 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. 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：US11090724B2

公开(公告)日：2021-08-17

申请号：US15926997

申请日：2018-03-20

Applicant: Applied Materials, Inc.

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

IPC: B33Y10/00 ,  B22F10/10 ,  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 ,  C04B35/64 ,  B22F3/10 ,  B22F3/15 ,  B28B11/24 ,  B33Y40/00 ,  B33Y50/02

Abstract: An additive manufacturing apparatus has a platform, one or more supports positioned above the platform, an actuator coupled to at least one of the platform and the one or more supports and configured to create relative motion therebetween such that the one or more supports scan across the platform, a first dispenser system configured dispense a plurality of successive layers of powder onto a build area supported by the platform, a second dispenser system configured to dispense a binder material onto 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.

公开(公告)号：US20240363392A1

公开(公告)日：2024-10-31

申请号：US18765940

申请日：2024-07-08

Applicant: Applied Materials, Inc.

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

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

CPC classification number: H01L21/70 ,  H01L21/02104 ,  H01L21/027 ,  H01L21/707 ,  H01L25/0753 ,  H01L27/153 ,  H01L33/00 ,  H01L33/0093 ,  H01L33/44 ,  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 color conversion layer over each of a plurality of light emitting diodes, and a plurality of isolation walls separating adjacent micro-LEDs of the array.

公开(公告)号：US12062735B2

公开(公告)日：2024-08-13

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 ,  B08B3/08 ,  B41M3/00 ,  B41M5/00 ,  B41M7/00 ,  H01L21/66 ,  H01L21/67 ,  H01L21/677 ,  H01L25/075 ,  H01L25/16

CPC classification number: H01L33/0095 ,  B08B3/08 ,  B41M3/003 ,  B41M3/006 ,  B41M5/0047 ,  B41M7/00 ,  H01L21/67034 ,  H01L21/67051 ,  H01L21/6715 ,  H01L21/67236 ,  H01L21/67288 ,  H01L21/67715 ,  H01L22/20 ,  H01L25/0753 ,  H01L21/67167 ,  H01L21/67173 ,  H01L25/167 ,  H01L2933/0041

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：US11965103B2

公开(公告)日：2024-04-23

申请号：US16996744

申请日：2020-08-18

Applicant: Applied Materials, Inc.

Inventor： Yingdong Luo ,  Sivapackia Ganapathiappan ,  Ashwin Murugappan Chockalingam ,  Daihua Zhang ,  Uma Sridhar ,  Daniel Redfield ,  Rajeev Bajaj ,  Nag B. Patibandla ,  Hou T. Ng ,  Sudhakar Madhusoodhanan

IPC: C09D11/107 ,  B24B37/24 ,  B29C64/112 ,  B29K33/00 ,  B29K509/02 ,  B29L31/00 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  B33Y80/00 ,  C09K3/14

CPC classification number: C09D11/107 ,  B24B37/245 ,  B29C64/112 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  B33Y80/00 ,  C09K3/1409 ,  B29K2033/08 ,  B29K2509/02 ,  B29L2031/736

Abstract: A formulation, system, and method for additive manufacturing of a polishing pad. The formulation includes monomer, dispersant, and nanoparticles. A method of preparing the formulation includes adding a dispersant that is a polyester derivative to monomer, adding metal-oxide nanoparticles to the monomer, and subjecting the monomer having the nanoparticles and dispersant to sonication to disperse the nanoparticles in the monomer.

公开(公告)号：US11942456B2

公开(公告)日：2024-03-26

申请号：US17587524

申请日：2022-01-28

Applicant: Applied Materials, Inc.

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

IPC: H01L25/075 ,  H01L33/00 ,  H01L33/32 ,  H01L33/50

CPC classification number: H01L25/0753 ,  H01L33/0075 ,  H01L33/32 ,  H01L33/504 ,  H01L2933/0033 ,  H01L2933/0041 ,  H01L2933/0058

Abstract: A method of fabricating a multi-color display includes dispensing a photo-curable fluid over a display having an array of light emitting diodes (micro-LEDs) disposed below a cover layer. The cover has an outer surface with a plurality of recesses, and the photo-curable fluid fills the recesses. The photo-curable fluid includes a color conversion agent. A plurality of LEDs in the array are activated to illuminate and cure the photo-curable fluid to form a color conversion layer in the recesses over the activated LEDs. This layer will convert light from these LEDs to light of a first color. An uncured remainder of the photo-curable fluid is removed. Then the process is repeated with a different photo-curable fluid having a different color conversion agent and a different plurality of LEDs. This forms a second color conversion layer in different plurality of recesses to convert light from these LEDs to light of a second color.