公开(公告)号：US20220149250A1

公开(公告)日：2022-05-12

申请号：US17522148

申请日：2021-11-09

Applicant: Applied Materials, Inc.

Inventor： Robert Anthony Nordsell ,  Mingwei Zhu ,  Nag Patibandla ,  John D. Busch ,  Moon Young Shin ,  Asha Parekh ,  Hou T. Ng

IPC: H01L33/50 ,  H01L25/075 ,  H01L33/00 ,  H01L33/60

Abstract: Exemplary pixel structures may include a pixel structure of a display device panel stack. The structures may include a first panel. The first panel may include a plurality of ultraviolet light sources disposed on a backplane. The structures may also include a second panel. The second panel may be coupled with the first panel. The second panel may have an inner surface facing the ultraviolet light sources. The second panel may include a transparent substrate and a down-conversion layer. The down-conversion layer may be disposed overlying the transparent substrate. The down-conversion layer may be configured to down-convert ultraviolet light into visible light. The plurality of ultraviolet light sources and the inner surface of the second panel may be separated by a distance of at least 2 μm.

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：US11207826B2

公开(公告)日：2021-12-28

申请号：US15942153

申请日：2018-03-30

Applicant: Applied Materials, Inc.

Inventor： Hou T. Ng ,  Raanan Zehavi ,  Nag B. Patibandla

IPC: B29C64/20 ,  B29C64/153 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/336 ,  B29C64/209 ,  B29C64/236 ,  B29C64/232 ,  B29C64/264 ,  B29C64/205 ,  B29C64/165 ,  B29C64/295 ,  B29C64/307 ,  B33Y10/00 ,  B22F3/00 ,  B33Y70/00 ,  B22F12/00 ,  B22F10/10 ,  B29C64/386 ,  B22F10/28 ,  B22F10/00

Abstract: An additive manufacturing system includes a platen, a dispenser apparatus positioned above the platen to dispense a layer of powder over the platen, and an energy source to selectively fuse the layer of powder. The dispenser apparatus includes a support structure, a dispenser secured to the support structure and including a reservoir to hold the powder and one or more openings configured to deliver powder from the reservoir in a linear region that extends along a first axis, a spreader extending along the first axis and secured to the support structure and positioned to spread powder already delivered on the platen by the dispenser, and a drive system to move the support structure along a second axis perpendicular to the first axis such that the dispenser and blade move together to sweep the linear region along the second axis to deposit and level the powder.

公开(公告)号：US11137243B2

公开(公告)日：2021-10-05

申请号：US15494332

申请日：2017-04-21

Applicant: Applied Materials, Inc.

Inventor： Hou T. Ng ,  Nag B. Patibandla ,  Sivapackia Ganapathiappan

IPC: G01B11/06 ,  B33Y10/00 ,  B33Y30/00 ,  B24D18/00 ,  B29C64/112 ,  B29C64/277 ,  B29C64/245 ,  B29C64/236 ,  B29C64/227 ,  B29C64/209 ,  B33Y80/00 ,  B29C64/129 ,  B29C64/386 ,  B29L31/00 ,  B24B37/24 ,  B24B37/26 ,  B24B37/20 ,  B33Y40/00 ,  G01N15/10 ,  G01N15/14

Abstract: A method of additive manufacturing includes dispensing successive layers of feed material to form a polishing pad, and directing first and second radiation beams toward the layers of feed material to form a polishing pad. Dispensing each successive layer of the layers of feed material includes dispensing a drop of feed material, and directing the first and second radiation beams toward the layers of feed material includes, for each successive layer, directing the first radiation beam toward the drop of feed material to cure an exterior surface of the drop of feed material, and directing the second radiation beam toward the drop of feed material to cure an interior volume of the drop of feed material.

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：US11002530B2

公开(公告)日：2021-05-11

申请号：US15494302

申请日：2017-04-21

Applicant: Applied Materials, Inc.

Inventor： Hou T. Ng ,  Nag B. Patibandla ,  Sivapackia Ganapathiappan

IPC: B29C64/227 ,  G01B11/06 ,  B33Y10/00 ,  B33Y30/00 ,  B24D18/00 ,  B29C64/112 ,  B29C64/277 ,  B29C64/245 ,  B29C64/236 ,  B29C64/209 ,  B33Y80/00 ,  B29C64/129 ,  B29C64/386 ,  B29L31/00 ,  B24B37/24 ,  B24B37/26 ,  B24B37/20 ,  B33Y40/00 ,  G01N15/10 ,  G01N15/14

Abstract: An additive manufacturing apparatus for forming a polishing pad for chemical mechanical polishing includes a platform, an actuator system coupled to the platform to adjust a tilt of the platform, one or more printheads supported above the platform, the one or more printheads configured to dispense successive layers of feed material on the platform to be form the polishing pad, a sensing system to detect a height of a surface on or above the platform at each of a plurality of horizontally spaced points, and a controller configured to selectively operate the actuator system to adjust the tilt of the platform based on the detected height of the platform at each of the points such that the surface is moved closer to horizontal.

公开(公告)号：US10981227B2

公开(公告)日：2021-04-20

申请号：US15941955

申请日：2018-03-30

Applicant: Applied Materials, Inc.

Inventor： Hou T. Ng ,  Nag B. Patibandla ,  Ajey M. Joshi ,  Bharath Swaminathan ,  Ashavani Kumar ,  Eric Ng ,  Bernard Frey ,  Kasiraman Krishnan

IPC: B22F3/10 ,  B22F3/105 ,  B29C64/153 ,  B22F3/00 ,  B29C64/371 ,  B29C64/364 ,  B23K26/342 ,  B23K26/70 ,  B33Y30/00 ,  B33Y10/00

Abstract: An additive manufacturing system includes a platen having a top surface, a support structure, a powder dispenser coupled to the support structure and positioned above the platen and configured to deliver a powder in a linear region that extends along a first axis, a gas dispenser coupled to the support structure in a fixed position relative to the powder dispenser and having an outlet to deliver a gas across the outermost layer of feed material, an energy source configured to selectively fused the layer of powder, and an actuator coupled to the support to move the support with the powder dispenser and the gas dispenser together along a second axis perpendicular to the first axis and parallel to the top surface such that the linear region and the outlet sweep along the second axis to deposit the powder in a swath over the platen and deliver the gas.

公开(公告)号：US10967626B2

公开(公告)日：2021-04-06

申请号：US16510774

申请日：2019-07-12

Applicant: Applied Materials, Inc.

Inventor： Hou T. Ng ,  Raanan Zehavi ,  Nag B. Patibandla

IPC: B22F3/105 ,  B33Y30/00 ,  B29C64/264 ,  B29C64/336 ,  B29C64/295 ,  B22F3/00 ,  B29C64/153 ,  B29C64/209 ,  B29C64/236 ,  B29C64/277 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y50/02 ,  B29C64/165 ,  B29C64/205

Abstract: A module for an additive manufacturing system includes a frame, a dispenser configured to deliver a layer of particles over a platen, an energy source to generate a beam to fuse the particles, and a metrology system having a first sensor to measure a property of the surface of layer before being fused and a second sensor to measure a property of the layer after being fused. The dispenser, first sensor, energy source and second sensor are positioned on the frame in order along a first axis, and the dispenser, first sensor, energy source and second sensor are fixed to the frame such that the frame, dispenser, first sensor, energy source and second sensor can be mounted and dismounted as a single unit from a movable support.

公开(公告)号：US20210023789A1

公开(公告)日：2021-01-28

申请号：US17067502

申请日：2020-10-09

Applicant: Applied Materials, Inc.

Inventor： Hou T. Ng ,  Nag B. Patibandla ,  Ajey M. Joshi ,  Raanan Zehavi ,  Jeffrey L. Franklin ,  Kashif Maqsood

IPC: B29C64/268 ,  B29C64/135 ,  B22F3/105 ,  B23K26/082 ,  B33Y10/00 ,  B28B1/00 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/245 ,  B29C64/205 ,  B29C64/209 ,  B29C64/277 ,  B29C64/273

Abstract: An additive manufacturing apparatus includes a platform, a dispenser to dispense a plurality of layers of feed material on a top surface of the platform, and an energy delivery assembly. The energy delivery assembly includes a light source to emit one or more light beams, a first reflective member having a plurality of reflective facets, and at least one second reflective member. The first reflective member is rotatable such that sequential facets sweep the light beam sequentially along a path on the uppermost layer. The at least one second reflective member is movable such that the at least one second reflective surface is repositionable to receive at least one of the at least one light beam and redirect the at least one of at least one light beam along a two-dimensional path on the uppermost layer.