公开(公告)号：US20250042151A1

公开(公告)日：2025-02-06

申请号：US18790687

申请日：2024-07-31

Applicant: Enjet Co. LTD

Inventor： Do Young Byun ,  Vu Dat Nguyen ,  Baek Hoon Seong

IPC: B41J2/045 ,  B41J2/06 ,  B41J2/125

Abstract: The present disclosure relates to an electrohydrodynamic jet printing apparatus and a method for controlling printing of the electrohydrodynamic jet printing apparatus. The electrohydrodynamic jet printing apparatus according to the present disclosure includes a nozzle that ejects supplied ink as a droplet towards a substrate; an electrode that is formed on the nozzle to form an electric field between the nozzle and the substrate by an applied voltage; a voltage supplier that applies the voltage to the electrode; and a controller that controls the voltage supplier, the controller controlling in real time the voltage being applied from the voltage supplier to the electrode such that a size of the droplet being ejected from the nozzle is constant.

公开(公告)号：US11383518B2

公开(公告)日：2022-07-12

申请号：US17185486

申请日：2021-02-25

Applicant: ENJET CO. LTD.

Inventor： Do Young Byun ,  Yong Hee Jang ,  Vu Dat Nguyen

IPC: B41J2/14

Abstract: The present disclosure relates to an induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode, and the induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode according to the present disclosure includes a nozzle for discharging supplied solution towards an opposite substrate through a nozzle hole formed at one end; a main electrode coated with an insulator and interpolated inside the nozzle, thus not contacting the solution inside the nozzle but separated from the solution; the induced auxiliary electrode made of a conductive material and formed at an outer surface of the nozzle; and a voltage supply for applying voltage to the main electrode.

公开(公告)号：US20160185112A1

公开(公告)日：2016-06-30

申请号：US14910783

申请日：2014-08-06

Applicant: ENJET CO., LTD.

Inventor： Vu Dat Nguyen ,  Do-Young Byun ,  Yong Hee Jang

IPC: B41J2/14

CPC classification number: B41J2/06 ,  B41J2/005 ,  B41J2/035 ,  B41J2/07 ,  B41J2/08 ,  B41J29/38 ,  B41J2002/061 ,  B41J2002/062 ,  B41J2002/063

Abstract: Provided herein is a contact patterning apparatus comprising: a substrate; a fluid supply unit configured to supply fluid towards the substrate; a voltage applying unit electrically connected to the fluid supply unit, and configured to make the fluid from the fluid supply unit connected between the substrate and the fluid supply unit by applying a voltage to a surface of the fluid; and a control unit configured to adjust a level of the voltage being applied to the fluid such that the fluid is patterned on the substrate in a dots form or a continuous line form, thereby stably patterning a continuous line of a fine line width regardless of the viscosity of the fluid being used and the patterning velocity.

Abstract translation: 本文提供的接触图案形成装置包括：基板; 流体供应单元，被配置为向所述基板供应流体; 电连接单元，电连接到所述流体供应单元，并且被配置为通过向所述流体的表面施加电压来使来自所述流体供应单元的流体连接在所述基板和所述流体供应单元之间; 以及控制单元，被配置为调节施加到流体的电压的电平，使得流体以点形式或连续线形式在基板上图案化，从而稳定地构图细线宽度的连续线，而不管 使用的流体的粘度和图案化速度。

公开(公告)号：US20150062250A1

公开(公告)日：2015-03-05

申请号：US14468405

申请日：2014-08-26

Applicant: Enjet Co. Ltd.

Inventor： Do-Young Byun ,  Vu Dat Nguyen ,  Baek Hoon Seong

IPC: B41J2/06

CPC classification number: B41J2/06 ,  B05B5/00 ,  B05B5/08 ,  B41J2002/043

Abstract: There is disclosed an apparatus for spraying and patterning, using an electrostatic force, includes a nozzle to which a voltage is applied to exhaust ink, a droplet circulation chamber provided in one end of the nozzle, with a hole provided in one end to spray the ink exhausted from the nozzle based on a particle size of the droplet and to temporarily collect the not-sprayed ink, and a substrate for impacting the ink sprayed from the hole thereon by forming an electric field between the nozzle and the substrate.

Abstract translation: 公开了一种用于喷涂和图案化的装置，使用静电力，包括施加电压的喷嘴以排出油墨，设置在喷嘴的一端的液滴循环室，其一端设置有喷孔， 基于液滴的粒径从喷嘴排出的墨水，并暂时收集未喷墨的墨水;以及基板，用于通过在喷嘴和基板之间形成电场来冲击从孔喷射的墨水。

公开(公告)号：US20240131799A1

公开(公告)日：2024-04-25

申请号：US18058476

申请日：2022-11-23

Applicant: ENJET CO. LTD.

Inventor： Do Young Byun ,  Shaheer Mohiuddin Khalil ,  Vu Dat Nguyen ,  Baek Hoon Seong

IPC: B29C64/393 ,  B29C64/118 ,  B29C64/209 ,  B33Y30/00 ,  B33Y50/02 ,  G06K15/02 ,  G06K15/10

CPC classification number: B29C64/393 ,  B29C64/118 ,  B29C64/209 ,  B33Y30/00 ,  B33Y50/02 ,  G06K15/021 ,  G06K15/105

Abstract: Disclosed is a printing apparatus for a 3D surface, which performs printing by ejecting a droplet onto a 3D surface and controlling an electric field on an impact path of the droplet, the printing apparatus including: a ejecting environment information provider configured to provide ejecting environment information between a nozzle and an impact point; and a controller configured to predict a result of printing on an actual substrate by accumulating previous printing results according to printing conditions and the ejecting environment information into a database, and perform the printing on the 3D surface while changing the printing conditions provided by the database based on the ejecting environment information provided by the ejecting environment information provider.

公开(公告)号：US20230094682A1

公开(公告)日：2023-03-30

申请号：US17645664

申请日：2021-12-22

Applicant: ENJET CO. LTD.

Inventor： Do Young Byun ,  Vu Dat Nguyen ,  Kwangsun Jeon

IPC: B41J2/125 ,  B41J2/06 ,  B41J2/14

Abstract: The present disclosure relates to a printing apparatus with a plurality of nozzle heads and method for aligning a plurality of nozzle tips. The printing apparatus with a plurality of nozzle heads according to the present disclosure includes a first nozzle head having a first nozzle tip for discharging ink and a first moving part for moving the first nozzle tip, and disposed at one side of a working area on a substrate; a second nozzle head having a second nozzle tip for discharging ink and a second moving part for moving the second nozzle tip, and disposed at the other side of the working area on the substrate; and a first camera disposed above the substrate to observe the first nozzle tip and the second nozzle tip at the same time.

公开(公告)号：US12172438B2

公开(公告)日：2024-12-24

申请号：US18521721

申请日：2023-11-28

Applicant: ENJET CO. LTD.

Inventor： Do Young Byun ,  Vu Dat Nguyen ,  Kwangsun Jeon

IPC: B41J2/125 ,  B41J2/06 ,  B41J2/14

Abstract: The present disclosure relates to a method for aligning a plurality of nozzle tips, the method comprising: a first nozzle aligning step of setting a reference position of a first nozzle tip for discharging ink within a working area through an image of a first camera observing the working area above a substrate and a second camera observing the working area in an inclined direction; a second nozzle aligning step of setting a reference position of a second nozzle tip for discharging ink within the working area through the image of the first camera and the second camera; a step of detecting a position of a substrate based on the image of the second camera; and a printing preparation step of positioning the first nozzle tip and the second nozzle tip to a printing position on the substrate.

公开(公告)号：US20240227305A9

公开(公告)日：2024-07-11

申请号：US18058476

申请日：2022-11-23

Applicant: ENJET CO. LTD.

Inventor： Do Young Byun ,  Shaheer Mohiuddin Khalil ,  Vu Dat Nguyen ,  Baek Hoon Seong

IPC: B29C64/393 ,  B29C64/118 ,  B29C64/209 ,  B33Y30/00 ,  B33Y50/02 ,  G06K15/02 ,  G06K15/10

CPC classification number: B29C64/393 ,  B29C64/118 ,  B29C64/209 ,  B33Y30/00 ,  B33Y50/02 ,  G06K15/021 ,  G06K15/105

Abstract: Disclosed is a printing apparatus for a 3D surface, which performs printing by ejecting a droplet onto a 3D surface and controlling an electric field on an impact path of the droplet, the printing apparatus including: a ejecting environment information provider configured to provide ejecting environment information between a nozzle and an impact point; and a controller configured to predict a result of printing on an actual substrate by accumulating previous printing results according to printing conditions and the ejecting environment information into a database, and perform the printing on the 3D surface while changing the printing conditions provided by the database based on the ejecting environment information provided by the ejecting environment information provider.

公开(公告)号：US20170182717A1

公开(公告)日：2017-06-29

申请号：US15371983

申请日：2016-12-07

Applicant: Enjet Co. Ltd .

Inventor： Do Young Byun ,  Vu Dat Nguyen

IPC: B29C67/00 ,  B33Y50/02 ,  B22F3/105 ,  B28B1/00 ,  B28B17/00 ,  B33Y30/00 ,  B33Y40/00

CPC classification number: B33Y30/00 ,  B22F3/008 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1058 ,  B28B1/001 ,  B28B17/0081 ,  B28B17/009 ,  B29C64/112 ,  B29C64/118 ,  B29C64/153 ,  B29C64/20 ,  B33Y40/00 ,  B33Y50/02 ,  Y02P10/295

Abstract: The invention provides a printer comprising an exchange station by which a printer module of a multifunction 3D printer can be attached and detached. The printer module is electromagnetically or mechanically attached to the exchange station to perform a printing operation. The multifunction 3D printer supports the printer module steadily and stably.

公开(公告)号：US11355360B2

公开(公告)日：2022-06-07

申请号：US16587740

申请日：2019-09-30

Applicant: ENJET CO. LTD.

Inventor： Do Young Byun ,  Vu Dat Nguyen ,  Yong Hee Jang

IPC: H01L21/56 ,  H01L21/67 ,  H01L21/687 ,  H01L21/683

Abstract: Disclosed are an underfill method and apparatus for a semiconductor package, the underfill method includes loading a substrate; charging a filler to be filled in between the substrate and a device; applying the filler to the substrate; and subjecting the applied filler to an electric field.