公开(公告)号：US20170299426A1

公开(公告)日：2017-10-19

申请号：US15513090

申请日：2016-06-09

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Keon Jae Lee ,  Jae Hyun Han ,  Daniel Joe

IPC: G01H11/08 ,  G10L15/22 ,  G10L15/28 ,  G10L21/028

CPC classification number: G01H11/08 ,  G01H3/08 ,  G10L15/22 ,  G10L15/28 ,  G10L21/028 ,  G10L25/18 ,  H04R7/06 ,  H04R17/02

Abstract: Disclosed is a piezoelectric voice recognition sensor, which includes a flexible thin film, a piezoelectric material layer laminated on the flexible thin film, and an electrode laminated on the piezoelectric material layer, wherein the electrode includes a plurality of frequency separation channels arranged in a row, and the plurality of frequency separation channels have different lengths from each other. The piezoelectric voice recognition sensor separates a voice, recognized using a plurality of frequency separation channels having a trapezoidal shape, through the plurality of channels depending on frequencies, and simultaneously converts the separated voice signals from mechanical vibration signals into electric signals by means of the flexible piezoelectric element so that the converted electric signals are recognized.

公开(公告)号：US10172241B2

公开(公告)日：2019-01-01

申请号：US14478279

申请日：2014-09-05

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Wook Baek ,  Keon Jae Lee ,  Geon Tae Hwang ,  Hyeon Kyun Yoo ,  Do Hyun Kim ,  Yoo Sun Kim

IPC: H05K3/32 ,  H05K1/03 ,  H05K3/00 ,  H01L23/00

Abstract: Provided is a flexible device, which includes a flexible substrate, a plurality of electrode lines provided on the flexible substrate and configured to contact the following anisotropic conductive film and then extend to a side of the flexible substrate, an anisotropic conductive film configured to contact the electrode line and laminated on the flexible substrate, a plurality of bumps provided on the anisotropic conductive film, and a circuit board having an electronic device provided at one side thereof and configured to contact the plurality of bumps.

公开(公告)号：US10166400B2

公开(公告)日：2019-01-01

申请号：US14538154

申请日：2014-11-11

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Keon Jae Lee ,  Myung Hwan Byun ,  Kwi Il Park ,  Geon Tae Hwang ,  Chang Kyu Chung

IPC: A61N1/00 ,  B32B38/00 ,  H01L41/08 ,  A61N1/378 ,  B32B38/10 ,  A61N1/36 ,  H01L41/113 ,  H01L41/312 ,  B82Y40/00 ,  A61N1/375 ,  A61N1/05

Abstract: Provided is a method for separating a nanogenerator, which includes laminating a buffer layer on a sacrificial substrate, making a nanogenerator on the buffer layer, laminating a metal layer on the nanogenerator and separating the nanogenerator from the buffer layer.Here, a nanogenerator is separated by using a stress difference between the sacrificial substrate and the metal layer, instead of an existing method in which a nanogenerator is separated from the sacrificial substrate by means of wet etching or the like. In particular, according to a difference between a tensile stress at the metal layer such as nickel and a compressive stress at the lower silicon substrate, the nanogenerator is intactly separated from the silicon oxide layer serving as a buffer layer. Therefore, the nanogenerator may be separated from the sacrificial substrate in a mechanical way, which is safer and more economic in comparison to an existing chemical separation method using an etching solution. Further, it is also possible to avoid a damage of the nanogenerator caused by an etching solution.

公开(公告)号：US20150077949A1

公开(公告)日：2015-03-19

申请号：US14478279

申请日：2014-09-05

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Wook Baek ,  Keon Jae Lee ,  Geon Tae Hwang ,  Hyeon Kyun Yoo ,  Do Hyun Kim ,  Yoo Sun Kim

IPC: H05K1/02 ,  H05K3/00 ,  H05K3/10 ,  H05K1/03

CPC classification number: H05K3/323 ,  H01L24/00 ,  H01L2224/16225 ,  H01L2224/32225 ,  H01L2224/73204 ,  H01L2224/73253 ,  H05K1/0393 ,  H05K3/0058 ,  H05K2203/016 ,  H05K2203/0278 ,  H05K2203/1105 ,  Y10T29/4913 ,  H01L2924/00

Abstract: Provided is a flexible device, which includes a flexible substrate, a plurality of electrode lines provided on the flexible substrate and configured to contact the following anisotropic conductive film and then extend to a side of the flexible substrate, an anisotropic conductive film configured to contact the electrode line and laminated on the flexible substrate, a plurality of bumps provided on the anisotropic conductive film, and a circuit board having an electronic device provided at one side thereof and configured to contact the plurality of bumps.

Abstract translation: 提供了一种柔性装置，其包括柔性基板，设置在柔性基板上并被配置为接触随后的各向异性导电膜然后延伸到柔性基板的一侧的多个电极线，被配置为接触 电极线，并且层压在柔性基板上，设置在各向异性导电膜上的多个凸块，以及具有设置在其一侧并被配置为接触多个凸块的电子器件的电路板。

公开(公告)号：US11295972B2

公开(公告)日：2022-04-05

申请号：US16727248

申请日：2019-12-26

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Keon Jae Lee ,  Han Eol Lee ,  Tae Jin Kim ,  Jung Ho Shin ,  Sang Hyun Park

IPC: H01L21/683 ,  H01L21/677 ,  B65G47/91 ,  H01L33/62

Abstract: The present disclosure provides a method for transfer and assembly of RGB micro-light-emitting diodes using vacuum suction force whereby the vacuum state of micrometer-sized adsorption holes to which micro-light-emitting diodes formed on a mother substrate or a temporary substrate are bonded is controlled selectively, so that only the micro-light-emitting diode devices desired to be detached from the mother substrate or the temporary substrate are detached from the mother substrate or the temporary substrate using vacuum suction force and then transferred to a target substrate.

公开(公告)号：US10436631B2

公开(公告)日：2019-10-08

申请号：US15513090

申请日：2016-06-09

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Keon Jae Lee ,  Jae Hyun Han ,  Daniel Joe

IPC: G01H11/08 ,  G10L15/28 ,  G10L15/22 ,  G10L21/028 ,  H04R17/02 ,  G01H3/08 ,  G10L25/18 ,  H04R7/06

Abstract: Disclosed is a piezoelectric voice recognition sensor, which includes a flexible thin film, a piezoelectric material layer laminated on the flexible thin film, and an electrode laminated on the piezoelectric material layer, wherein the electrode includes a plurality of frequency separation channels arranged in a row, and the plurality of frequency separation channels have different lengths from each other. The piezoelectric voice recognition sensor separates a voice, recognized using a plurality of frequency separation channels having a trapezoidal shape, through the plurality of channels depending on frequencies, and simultaneously converts the separated voice signals from mechanical vibration signals into electric signals by means of the flexible piezoelectric element so that the converted electric signals are recognized.

公开(公告)号：US11272851B2

公开(公告)日：2022-03-15

申请号：US16202965

申请日：2018-11-28

Applicant: ROBOPRINT CO., LTD ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Keon Jae Lee ,  Dae Yong Park ,  Dong Hyun Kim ,  Seong Wook Min ,  Jae Hun An ,  Jung Kyu Park ,  Min Su Kim

IPC: A61B5/022 ,  A61B5/00 ,  A61B5/021

Abstract: A pulse sensing module used in a blood pressure measuring device attached to the skin to allow at least one of systolic pressure Psystolic, diastolic pressure Pdiastolic, and blood pressure variation to be measured according to an embodiment of the present disclosure includes a piezoelectric layer that includes a piezoelectric material for generating a piezoelectric effect due to a pulse and a protective layer that is applied to the piezoelectric layer to protect the piezoelectric layer, allows a poling process of applying a high voltage to the first electrode line and the second electrode line formed on the piezoelectric layer to improve the polarity of the piezoelectric material, and has an opening for allowing a portion of the first electrode line and a portion of the second electrode line to be exposed.