公开(公告)号：US11094530B2

公开(公告)日：2021-08-17

申请号：US16412222

申请日：2019-05-14

Applicant: Applied Materials, Inc.

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

IPC: H01L21/00 ,  H01L21/02 ,  H01L33/50 ,  H01L25/075 ,  H01L33/58 ,  H01L33/62 ,  H01L33/00 ,  H01L21/70

Abstract: A method of fabricating a multi-color display includes dispensing a photo-curable fluid that includes a color conversion agent over a display having a backplane and an array of light emitting diodes electrically integrated with backplane circuitry of the backplane, activating a plurality of light emitting diodes in the array of light emitting diodes to illuminate and cure the first photo-curable fluid to form a color conversion layer over each of the first plurality of light emitting diodes to convert light from the plurality of light emitting diodes to light of a first color, and removing an uncured remainder of the first photo-curable fluid. This process is repeated with a fluid having different color conversion components for another color.

公开(公告)号：US20210154930A1

公开(公告)日：2021-05-27

申请号：US16694144

申请日：2019-11-25

Applicant: Applied Materials, Inc.

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

IPC: B29C64/209 ,  B29C64/25 ,  B29C64/255 ,  B29C64/329 ,  B29C64/227 ,  B29C64/245 ,  B29C64/264 ,  B29C64/153

Abstract: A dispensing system for an additive manufacturing includes a powder reservoir that contains powder to form an object, and an array of nozzles positioned at a base of the powder reservoir over a top surface of a platen where the object is to be formed. The powder flows from the powder reservoir through the nozzles to the top surface. A respective powder wheel in each nozzle controls a flow rate of the powder. Each wheel has multiple troughs on surface of the wheel. When a motor rotates the wheel, the troughs transport the powder through the nozzle. The rotation speed of the wheel controls the flow rate. For solid parts of the object, the wheel rotates and allows the powder to be deposited on the top surface. For empty parts of the object, the wheel remains stationary to prevent the powder from flowing to the surface.

公开(公告)号：US10981323B2

公开(公告)日：2021-04-20

申请号：US15960481

申请日：2018-04-23

Applicant: Applied Materials, Inc.

Inventor： Jeffrey L. Franklin ,  Hou T. Ng ,  Nag B. Patibandla

IPC: B33Y30/00 ,  B33Y50/00 ,  B33Y50/02 ,  G02B5/09 ,  G02B26/12 ,  B29C64/153 ,  B29C64/236 ,  B29C64/218 ,  B29C64/209 ,  B29C64/277 ,  B29C64/214 ,  B29C64/386 ,  B33Y10/00 ,  B29C64/245 ,  B29C64/393 ,  B29C64/268 ,  B29C64/205

Abstract: An additive manufacturing apparatus includes a platform, a dispenser to deliver a plurality of layers of feed material, one or more light sources configured to emit a first light beam and a second light beam, and a polygon beam scanner including a rotatable mirror having a plurality of reflective facets to redirect the first light beam and the second light beam toward the platform to deliver energy to an uppermost layer of feed material. The mirror is positioned and rotatable such that motion of each facet of the plurality of reflective facets causes the first light beam to sweep along a first path on the uppermost layer and causes the second light beam to sweep along the first path following the first light beam.

公开(公告)号：US10780497B2

公开(公告)日：2020-09-22

申请号：US15186060

申请日：2016-06-17

Applicant: Applied Materials, Inc.

Inventor： Hou T. Ng ,  Nag B. Patibandla ,  Ajey M. Joshi ,  Ashavani Kumar ,  Kasiraman Krishnan

IPC: B22F3/105 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y10/00 ,  B29C64/386 ,  B29C64/153 ,  B29C64/20 ,  B22F1/00

Abstract: An additive manufacturing apparatus for forming a part includes a support, a first dispenser to deliver a layer of first particles on a support or an underlying layer on the support, a second dispenser to deliver second particles onto the layer of first particles such that the second particles infiltrate into the layer of first particles, an energy source to fuse the first particle and second particles to form a fused layer of the part, and a controller coupled to the first dispenser, second dispenser and energy source.

公开(公告)号：US10758978B2

公开(公告)日：2020-09-01

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 ,  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 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.

公开(公告)号：US10717265B2

公开(公告)日：2020-07-21

申请号：US15266494

申请日：2016-09-15

Applicant: Applied Materials, Inc.

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

IPC: B29C64/20 ,  B33Y40/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/112 ,  B29C64/386 ,  B29C64/153 ,  B29C64/165

Abstract: An additive manufacturing system includes a platen having a top surface to support an object being manufactured, a support structure, an actuator coupled to at least one of the platen or the support structure to create relative motion there between along a first axis parallel to the top surface, a plurality of printheads mounted on the support structure, and an energy source. Each printhead includes a dispenser to deliver a plurality of successive layers of feed material over the platen. The printheads are spaced along a second axis perpendicular to the first axis such that during motion along the first axis the plurality of printheads dispense feed material in a plurality of parallel swaths along the first axis. The energy source is configured to fuse at least a portion of the feed material.

公开(公告)号：US10668533B2

公开(公告)日：2020-06-02

申请号：US15211872

申请日：2016-07-15

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 ,  B29C64/20 ,  B22F3/00 ,  B29C64/371 ,  B23K26/342 ,  B23K26/70 ,  B33Y30/00 ,  B33Y10/00

Abstract: An additive manufacturing system includes a platen having a top surface to support an object being manufactured, a feed material dispenser to deliver a plurality of successive layers of feed material over the platen, an energy source positioned above the platen to fuse at least a portion of an outermost layer of feed material, and a coolant fluid dispenser to deliver a coolant fluid onto the outermost layer of feed material after at least a portion of the outermost layer has been fused.

公开(公告)号：US20190351667A1

公开(公告)日：2019-11-21

申请号：US16510774

申请日：2019-07-12

Applicant: Applied Materials, Inc.

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

IPC: B33Y30/00 ,  B29C64/295 ,  B29C64/20 ,  B22F3/00 ,  B29C64/209 ,  B29C64/236 ,  B22F3/105 ,  B29C64/336 ,  B29C64/264 ,  B29C64/153

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：US20190308406A1

公开(公告)日：2019-10-10

申请号：US16440731

申请日：2019-06-13

Applicant: Applied Materials, Inc.

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

IPC: B33Y30/00 ,  B29C31/02 ,  B05C19/04 ,  B22F3/00 ,  B29C64/205 ,  B29C64/153 ,  B29C64/321 ,  B29C64/241 ,  B22F3/105 ,  B29C64/20

Abstract: An additive manufacturing apparatus includes a dispensing system positionable over a platen to deliver a powder, an actuator to move the dispensing system along a scan axis, and an energy source to fuse a portion of the powder. The dispensing system has a hopper to hold the powder and a dispenser. The dispenser includes a channel extending along a longitudinal axis from a proximal end to a distal end. The proximal end of the channel of the dispenser is configured to receive the powder from the powder source. A powder conveyor is positioned within the channel to move the powder from the proximal end along a length of the channel, and a plurality of apertures are arranged along the longitudinal axis of the channel. The dispenser is configured such that flow of powder through each aperture is independently controllable.

公开(公告)号：US10350824B2

公开(公告)日：2019-07-16

申请号：US15265631

申请日：2016-09-14

Applicant: Applied Materials, Inc.

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

IPC: B29C67/00 ,  B29C64/153 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/386 ,  B29C64/20 ,  B29C64/336 ,  B29C64/264 ,  B29C64/205 ,  B29C64/165 ,  B29C64/295 ,  B29C64/209 ,  B29C64/307 ,  B22F3/105 ,  B33Y10/00 ,  B22F3/00 ,  B33Y70/00

Abstract: An additive manufacturing system includes a platen having a top surface to support an object being manufactured, a support that is movable along a vertical axis, an actuator to move the support along the vertical axis, a dispenser to deliver a plurality of successive layers of feed material over the platen, an energy source configured to fuse at least a portion of the feed material, and a controller. The dispenser and energy source are mounted on the support over the platen such that motion of the support along the vertical axis moves the dispenser and energy source together toward or away from the top surface of the platen. The controller is coupled to the actuator, dispenser and energy source and configured to cause the actuator to move the support to lift the dispenser and actuator away from the top surface after each of the plurality of successive layers is delivered.