公开(公告)号：US20230081954A1

公开(公告)日：2023-03-16

申请号：US17897502

申请日：2022-08-29

Applicant: Korea Electronics Technology Institute

Inventor： Intae SEO ,  Hyung Won KANG ,  Seung Ho HAN ,  Myong Jae YOO ,  Hyunseung YANG

IPC: H01L41/187 ,  H01L41/37 ,  H01L41/312 ,  H01L41/047 ,  H01L41/338 ,  H01L41/193

Abstract: Disclosed is a method for manufacturing a laminated piezoelectric composite. The method includes wet-mixing ceramic powder, a polymer binder, a plasticizer and a solvent for 4 to 72 hours so as to generate a mixed slurry, introducing the mixed slurry into a tape casting process so as to prepare a plurality of piezoelectric composite sheets, drying and forming the plurality of piezoelectric composite sheets using a roll-to-roll process so as to prepare the plurality of formed piezoelectric composite sheets, forming internal electrodes on the plurality of piezoelectric composite sheets so as to prepare the plurality of piezoelectric composite sheets having the internal electrodes, laminating and pressing the plurality of piezoelectric composite sheets having the internal electrodes so as to generate a piezoelectric composite sheet laminate having the internal electrodes, and cutting the piezoelectric composite sheet laminate having the internal electrodes into a desired shape and size.

公开(公告)号：US20220169769A1

公开(公告)日：2022-06-02

申请号：US17541023

申请日：2021-12-02

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Myong Jae YOO ,  Churl Seung LEE

IPC: C08F220/58 ,  C08F220/28

Abstract: This application relates to a low-dielectric thermally curable resin composition for solving a problem of increased transmission loss. In one aspect, the low-dielectric thermally curable resin composition includes a (meth)acrylic monomer having an alicyclic heterocycle, a polyfunctional (meth)acrylic monomer, an initiator, and a curing accelerator, and a low dielectric material prepared therefrom. Various embodiments can provide excellent low dielectric properties with a dielectric constant (Dk) in a high frequency area of 1 to 20 GHz of less than, for example, 3.28. In addition, the low dielectric material can have a significantly reduced transmission loss with a dissipation factor (Df) in an area of 1 to 20 GHz of less than, for example, 0.008, and thus, may implement excellent transmission properties in excellent 5G mobile communication.

公开(公告)号：US20220077381A1

公开(公告)日：2022-03-10

申请号：US17468404

申请日：2021-09-07

Applicant: Korea Electronics Technology Institute

Inventor： Myong Jae YOO ,  Hyung Won KANG ,  Seung Ho HAN

IPC: H01L41/332 ,  H01L41/047 ,  H01L41/187 ,  H01L41/29 ,  H01L41/43 ,  B23K26/352 ,  B23K26/0622 ,  B23K26/00

Abstract: A method of forming an electrode in a ceramic transducer electronic component is provided. The method includes preparing a sintered body for a ceramic transducer containing a metal oxide, performing patterning by irradiating a laser on a surface of the sintered body for a ceramic transducer, and forming a metal electrode by performing an electroless plating process on the sintered body for a ceramic transducer on which the patterning is formed, wherein, in the performing of the patterning by irradiating the laser on the surface of the sintered body for a ceramic transducer, the patterning is performed by irradiating the laser that satisfies at least one of a predetermined power condition and a predetermined processing speed condition.

公开(公告)号：US20180062006A1

公开(公告)日：2018-03-01

申请号：US15447077

申请日：2017-03-01

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Sung Hyun KIM ,  Myong Jae YOO ,  Ji Sun PARK

IPC: H01L31/0224 ,  H01L31/0236 ,  H01L31/0216

CPC classification number: H01L31/022425 ,  H01B1/22 ,  H01L31/02168 ,  H01L31/02363 ,  Y02E10/50

Abstract: Disclosed is a conductive paste for a front electrode of a solar cell, including copper-silver core-shell particles, boron, and a binder, wherein the boron is contained in an amount of 2.5 to 11 wt % based on the total weight of the conductive paste.