公开(公告)号：US11548212B2

公开(公告)日：2023-01-10

申请号：US17305747

申请日：2021-07-14

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou ,  Ziv Gilan

IPC: B41J2/14 ,  B05D3/06 ,  B29C64/268 ,  B29C64/112 ,  B29C64/205 ,  B41M5/00 ,  B33Y10/00 ,  B05D1/02

Abstract: Laser jetting of droplets of a viscous material, such as an ink, is performed by coating a layer of ink on a mesh-like transport screen, with the ink being retained within spaces of the mesh-like transport screen. The ink-coated mesh-like transport screen is conveyed to a working area and a laser beam is used to heat the ink within the spaces of the mesh-like transport screen, thereby causing ink droplets to be jetted from the spaces of the mesh-like transport screen. Structures are formed on a receiving substrate arranged near the working area by jetting the ink droplets, either in an aggregation or sequentially, across a gap from the mesh-like transport screen to the receiving substrate and displacing the mesh-like transport screen and the laser beam relative to one another at times between the jetting of the droplets, or by directly printing ink droplets onto the receiving substrate.

公开(公告)号：US20220401993A1

公开(公告)日：2022-12-22

申请号：US17815872

申请日：2022-07-28

Applicant: IO Tech Group Ltd.

Inventor： Michael ZENOU

IPC: B05D3/06 ,  B41J2/48 ,  G02B6/35 ,  G02B6/42 ,  G02B6/26

Abstract: The laser-induced dispensing system includes a cartridge assembly having a supply reel for supplying a foil having a light transmissive layer wound around the supply reel, and a take-up reel for taking up the foil. There is provided a coating device for coating the foil by a donor material during a motion of the foil. The laser-induced dispensing system also includes an irradiation head having optics configured for focusing a laser beam. Additionally, a controller, for controlling the cartridge assembly to establish motion of the foil, and the optics to focus the laser beam onto the foil at a location downstream of the outlet of the coating device so as to release droplets of the donor material from the foil is provided.

公开(公告)号：US20220339885A1

公开(公告)日：2022-10-27

申请号：US17811998

申请日：2022-07-12

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou ,  Ziv Gilan

IPC: B29C64/393 ,  B29C64/40 ,  B29C64/106 ,  B29C64/118 ,  B29C64/112 ,  B29C64/165 ,  G05B19/4099 ,  B29C64/379 ,  B29C64/209 ,  B29C64/277 ,  B29C64/268 ,  B23K26/402

Abstract: A method of solid free-form fabrication (SFF) includes receiving SFF data collectively pertaining to a three-dimensional shape of the object and comprising a plurality of slice data each defining a layer of the object. The method further includes dispensing a building material containing a solvent, drying the building material so as to remove at least some of the solvent from the building material and leveling the building material. The method further includes selectively ablating the building material, for at least several of the multiple layers, according to the slice data corresponding to the layer, and dispensing at least one additional building material onto the building material to fill vacant regions formed in the multiple layers by the selective ablation. A resolution of the dispensing of the additional building material may be less than a resolution of the selective ablation.

公开(公告)号：US11370174B2

公开(公告)日：2022-06-28

申请号：US16730610

申请日：2019-12-30

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou ,  Ziv Gilan

IPC: B29C64/393 ,  B23K26/402 ,  B29C64/106 ,  B29C64/112 ,  B29C64/118 ,  B29C64/165 ,  B29C64/209 ,  B29C64/268 ,  B29C64/277 ,  B29C64/379 ,  B29C64/40 ,  G05B19/4099 ,  B29C35/08 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/30

Abstract: A printer pressing assembly for forming material layers is provided. The printer pressing assembly includes a support assembly having a support surface, a driver and a press stop. The driver is able to change an elevation of the support surface relative to an elevation of the press stop. A nozzle is capable of dispensing a material onto the support surface. Further, a press is positionable opposite to the support surface and capable of moving relative to the support. Additionally, the press stop is capable of being elevated above the support surface so as to engage an abutment surface of the press to set a pre-determined distance between the contact surface of the press and the support surface.

公开(公告)号：US11207830B2

公开(公告)日：2021-12-28

申请号：US17248220

申请日：2021-01-14

Applicant: IO Tech Group Ltd.

Inventor： Ziv Gilan ,  Michael Zenou ,  Guy Nesher

IPC: B29C64/194 ,  B29C64/129 ,  B29C35/08 ,  B29C64/357 ,  B33Y30/00 ,  B33Y10/00 ,  B29C64/112 ,  B33Y40/20

Abstract: Methods and apparatus for the fabrication of solid three-dimensional objects from liquid polymerizable materials at high resolution. A material is coated on a film non-digitally, excess material is removed digitally, by laser, leaving an image of a layer to be printed, and the image is then engaged with existing portions of an object being fabricated and exposed to a non-digital UV curing light source. Since the only part of the process that is digital is the material removal, and this part is done by laser, the speed of printing and the robustness of the manufacturing process is improved significantly over conventional additive or 3D fabrication techniques.

公开(公告)号：US10919224B2

公开(公告)日：2021-02-16

申请号：US16509121

申请日：2019-07-11

Applicant: IO Tech Group, Ltd.

Inventor： Ziv Gilan ,  Daniel Liptz ,  Michael Zenou

IPC: B29C64/245 ,  B29C64/268 ,  B29C64/379 ,  B33Y30/00 ,  B33Y40/00

Abstract: A leveling system for a 3D printing system for laser dispensing includes inner and outer frames, each supported at its corners by respective actuators of first and second sets of actuators. The outer frame supports an optical plane within which material to be dispensed by laser irradiation is disposed. The inner frame supports a receiving medium plane within which a substrate on which said material to be dispensed by laser irradiation is disposed. Each actuator operates independently to displace a respective frame corner in the vertical direction. The inner and outer frames each is attached at their respective corners to a respective actuator by a rod, thus allowing the inner and outer frames to freely rotate with respect to one another. An additional frame may support sensors for monitoring the 3D printing system.

公开(公告)号：US10898921B2

公开(公告)日：2021-01-26

申请号：US16694616

申请日：2019-11-25

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou ,  Ziv Gilan

IPC: B05C11/10 ,  B05C5/02 ,  B05C1/08 ,  B05D1/26 ,  B05D1/40 ,  B05D7/00 ,  B05C11/02

Abstract: Systems and methods for dispensing liquid materials as may be used in applications for coating flexible films and the like. Such a film may be coated by dispensing a rheological material onto its surface while drawing the film through a gap between a pair of rollers. The gap defines the thickness of a layer of the material applied to the film and is maintained at a desired width by microwires positioned through the gap. Another film across the gap from that to which the rheological material is applied aids in the coating of the layer and a contact area of the second film may be adjusted relative to the gap, e.g., when changing materials or when the coating film becomes abraded or deformed.

公开(公告)号：US20200350275A1

公开(公告)日：2020-11-05

申请号：US15929281

申请日：2020-04-22

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou ,  Ziv Gilan ,  Guy Nesher

IPC: H01L23/00

Abstract: A method for fabricating a three-dimensional (3D) electronic device. A liquid support material (e.g., an epoxy acrylate with a photoinitiator) is applied by a laser-induced forward transfer (LIFT) process to a printed circuit board (PCB) having one or more connectors and one or more electronic components thereon, and then cured to solid form by cooling and/or exposure to ultraviolet (UV) radiation. A layer of conductive material (e.g., a metal) is printed on the solidified support material by LIFT to electrically connect the one or more electronic components to respective ones of the connectors on the PCB. Subsequently, the layer of conductive material is dried by heating and metal particles in the conductive layer sintered using a laser beam. The assembly may then be encapsulated in an encapsulant.

公开(公告)号：US20200180225A1

公开(公告)日：2020-06-11

申请号：US16703417

申请日：2019-12-04

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou ,  Ziv Gilan ,  Daniel Liptz ,  Yuval Shai

IPC: B29C64/264 ,  B29C64/245 ,  B29C64/371 ,  B29C64/106

Abstract: Systems and methods that prevent oxygen inhibition of a light-initiated polymerization reaction by purging the oxygen from reaction surfaces using inert gas flow. In some embodiments, oxygen is purged using a gas diffusion system that introduces, via a diffuser, an inert gas into a workspace between a UV light source and a UV curable layer of a workpiece. The diffuser may be made of a transparent or diffuse material to allow UV light to pass through it, and includes an array of micro-holes for the gas to pass through towards the workpiece. The inert gas flow may be heated to maintain a desired and uniform reaction temperature.

公开(公告)号：US20200086341A1

公开(公告)日：2020-03-19

申请号：US16694616

申请日：2019-11-25

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou ,  Ziv Gilan

IPC: B05D1/26 ,  B05D1/40 ,  B05D7/00 ,  B05C11/02 ,  B05C11/10 ,  B05C5/02

Abstract: Systems and methods for dispensing liquid materials as may be used in applications for coating flexible films and the like. Such a film may be coated by dispensing a rheological material onto its surface while drawing the film through a gap between a pair of rollers. The gap defines the thickness of a layer of the material applied to the film and is maintained at a desired width by microwires positioned through the gap. Another film across the gap from that to which the rheological material is applied aids in the coating of the layer and a contact area of the second film may be adjusted relative to the gap, e.g., when changing materials or when the coating film becomes abraded or deformed.