公开(公告)号：US11446750B2

公开(公告)日：2022-09-20

申请号：US16807489

申请日：2020-03-03

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou ,  Ziv Gilan ,  Guy Nesher

IPC: B41F16/00 ,  B05C5/02 ,  B05C1/08 ,  B05C9/14 ,  H05K3/00 ,  B05D3/06 ,  B05D1/26 ,  B05D1/28 ,  B23K1/00 ,  H05K3/34 ,  B41M3/00 ,  B23K101/42

Abstract: Systems and methods in which dot-like portions of a material (e.g., a viscous material such as a solder paste) are printed or otherwise transferred onto an intermediate substrate at a first printing unit, the intermediate substrate having the dot-like portions of material printed thereon is transferred to a second printing unit, and the dot-like portions of material are transferred from the intermediate substrate to a final substrate at the second printing unit. Optionally, the first printing unit includes a coating system that creates a uniform layer of the material on a donor substrate, and the material is transferred in the individual dot-like portions from the donor substrate onto the intermediate substrate at the first printing unit. Each of the first and second printing units may employ a variety of printing or other transfer technologies. The system may also include material curing and imaging units to aid in the overall process.

公开(公告)号：US20220023016A1

公开(公告)日：2022-01-27

申请号：US17493303

申请日：2021-10-04

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou ,  Guy Nesher ,  Ziv Gilan

IPC: A61C13/00 ,  B29C64/268 ,  B29C64/205 ,  A61C13/08

Abstract: A three-dimensional device is fabricated in a layer-by-layer approach using a support material. The support material is deposited in a liquid form on a surface, hardened by cooling or ultraviolet (UV) curing, and selectively ablated to create an area within which the desired structure of the device will be formed. Active material is deposited into this area, and the layer-by-layer process repeated until the three-dimensional device has been completed. Thereafter, any remaining support material is removed by water or other solvent.

公开(公告)号：US11203154B2

公开(公告)日：2021-12-21

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 ,  B29C64/106 ,  B29C64/371 ,  B29C35/02 ,  B29C35/08 ,  B29C59/04 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

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：US20210385951A1

公开(公告)日：2021-12-09

申请号：US17302449

申请日：2021-05-03

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou

IPC: H05K3/28 ,  H05K3/00

Abstract: Systems and methods that enable printing of conformal materials and other waterproof coating materials at high resolution. An initial printing of a material on edges of a component is performed at high resolution in a first printing step, and a subsequent printing of the material on remaining surfaces of the component is applied in a second printing step, with or without curing of the material printed on the edges between the two printing steps. The printing of the material may be performed by a laser-assisted deposition or using another dispensing system to achieve a high resolution printing of the material and a high printing speed.

公开(公告)号：US20210347116A1

公开(公告)日：2021-11-11

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 ,  B29C64/112 ,  B29C64/357

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：US20210339462A1

公开(公告)日：2021-11-04

申请号：US17305747

申请日：2021-07-14

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou ,  Ziv Gilan

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

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：US20210267067A1

公开(公告)日：2021-08-26

申请号：US17247981

申请日：2021-01-04

Applicant: IO Tech Group Ltd.

Inventor： Ziv Gilan ,  Michael Zenou

IPC: H05K3/12 ,  H05K3/34

Abstract: Systems and methods in which dot-like portions of a material (e.g., a viscous material such as a solder paste) are printed or otherwise transferred onto an electronic component at a first printing unit, and the electronic component is subsequently placed onto a substrate with the portions of viscous material between the electronic component and the substrate. Optionally, a printing unit which prints the dots of material onto the electronic component includes a coating system that creates a uniform layer of the material on a donor substrate, and the material is transferred in the individual dot-like portions from the donor substrate onto the electronic component by the printing unit. The system may also include imaging units to aid in the overall process.

公开(公告)号：US10099422B2

公开(公告)日：2018-10-16

申请号：US15704575

申请日：2017-09-14

Applicant: IO Tech Group Ltd.

Inventor： Michael Zenou ,  Ziv Gilan

IPC: B29C35/08 ,  B29C41/02 ,  B29C64/393 ,  B29C64/40 ,  B29C64/106 ,  B29C64/118 ,  B29C64/112 ,  B29C64/165 ,  B29C64/379 ,  B29C64/209 ,  B29C64/277 ,  B29C64/268 ,  B23K26/402 ,  G05B19/4099 ,  B33Y10/00 ,  B33Y30/00 ,  B22F3/00

Abstract: A method of solid free form fabrication (SFF) is disclosed. The method comprises: 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 also comprises, for each of at least a few of the layers, dispensing a building material on a receiving medium, straightening the building material, and selectively ablating the building material according to respective slice data.