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公开(公告)号：US20240080011A1
公开(公告)日：2024-03-07
申请号：US18112609
申请日：2023-02-22
发明人： Moon Chul LEE , Jae Hyoung GIL , Kwang Su KIM , Sung Jun LEE , Yong Suk KIM , Dong Hyun PARK , Tae Kyung LEE
摘要： A bulk-acoustic wave (BAW) resonator includes a central portion in which a first electrode, a piezoelectric layer, and a second electrode are sequentially stacked on a substrate, and an extension portion extending externally from the central portion, and an insertion layer and a loss prevention film are disposed in the extension portion between the substrate and the second electrode. The loss prevention film is formed to have a thickness of 50 Å to 500 Å. The insertion layer is stacked on the loss prevention film, and has a side surface opposing the central portion, the side surface is formed as a first inclined surface having a first inclination angle. The loss prevention film has a side surface opposing the central portion, the side surface is formed as a second inclined surface having a second inclination angle. The second inclination angle is formed to be greater than the first inclination angle.
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公开(公告)号：US20230087049A1
公开(公告)日：2023-03-23
申请号：US17689333
申请日：2022-03-08
发明人： Tae Kyung LEE , Sang Heon HAN , Kwang Su KIM , Sung Joon PARK , Jae Goon AUM
摘要： A bulk acoustic resonator includes: a substrate; a protective layer; and a resonant portion including a piezoelectric layer, a first electrode disposed between the piezoelectric layer and the substrate, and a second electrode disposed between the piezoelectric layer and the protective layer. The protective layer covers a central portion of the resonant portion and a reflective portion surrounding the central portion and formed in a region in which an upper surface of the second electrode rises relative to the central portion. An upper surface of a portion of the protective layer covering the reflective portion is more gently inclined than the upper surface of a portion of the second electrode in the reflective portion.
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公开(公告)号：US20230022852A1
公开(公告)日：2023-01-26
申请号：US17750643
申请日：2022-05-23
发明人： Tae Kyung LEE , Ji Hye NAM , Hye Lee KIM , Jong Hyouk KIM , Jong Won YUN , Seong Ho EOM , Seong Chan PARK , Yong Joo JO
摘要： A lens includes a lens unit, an uneven layer formed on at least a portion of a surface of the lens unit, a buffer layer covering the uneven layer and having a shape conforming to an uneven surface of the uneven layer, and a water-repellent layer covering the buffer layer.
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公开(公告)号：US20230015405A1
公开(公告)日：2023-01-19
申请号：US17679472
申请日：2022-02-24
发明人： Tae Kyung LEE , Sung Joon PARK , Kwang Su KIM , Jae Goon AUM , Sung HAN
摘要： A bulk acoustic resonator package is provided. The bulk acoustic resonator package includes a substrate; a cap; a resonance portion including a first electrode, a piezoelectric layer, and a second electrode, stacked in a first direction in which the substrate and the cap face each other, and disposed between the substrate and the cap; and a cap melting member disposed to surround the resonance portion, and disposed to be in contact with a portion of a surface of the cap facing the substrate, when viewed in the first direction, and including a material or a structure that is based on a melting of the portion of the surface of the cap.
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公开(公告)号：US20210313958A1
公开(公告)日：2021-10-07
申请号：US16934265
申请日：2020-07-21
发明人： Tae Kyung LEE , Won HAN , Sang Uk SON , Hwa Sun LEE , Moon Chul LEE
摘要： A bulk-acoustic wave resonator includes a substrate, a first electrode disposed on the substrate, a piezoelectric layer covering at least a portion of the first electrode, and a second electrode covering at least a portion of the piezoelectric layer. When an active region, in which the first electrode and the second electrode are disposed to overlap each other, is viewed from above, among four sides of a rectangle with which at least three vertices of a polygon formed by the active region are in contact, a longest side is defined as a side B and a side connected to side B is defined as a side A, and an aspect ratio (side B/side A) is 1.3 to 3.
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公开(公告)号：US20180048281A1
公开(公告)日：2018-02-15
申请号：US15487620
申请日：2017-04-14
发明人： Moon Chul LEE , Jae Chang LEE , Chang Hyun LIM , Tae Hun LEE , Tae Kyung LEE , Tae Yoon KIM
IPC分类号： H03H9/02 , H01L41/047 , H03H9/54
CPC分类号： H03H9/02102 , H01L41/047 , H03H9/173 , H03H9/542 , H03H9/564
摘要： A bulk acoustic filter device includes: a substrate; a cavity forming layer disposed on the substrate so as to form a cavity; a lower electrode disposed on the cavity; a piezoelectric layer disposed on the lower electrode; an upper electrode disposed on the piezoelectric layer; and a temperature compensation layer disposed below the lower electrode and in the cavity portion.
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公开(公告)号：US20170317660A1
公开(公告)日：2017-11-02
申请号：US15385448
申请日：2016-12-20
发明人： Tae Yoon KIM , Tae Kyung LEE , Moon Chul LEE , Sung Min CHO , Sang Kee YOON
CPC分类号： H03H9/17 , H03H3/02 , H03H9/02133 , H03H9/173 , H03H9/54
摘要： A bulk acoustic wave resonator may include: an air cavity; an etching stop layer and an etching stop part, which define a lower boundary surface and a side boundary surface of the air cavity; and a resonating part formed on an approximately planar surface, which is formed by a upper boundary surface of the air cavity and a top surface of the etching stop part. A width of a top surface of the etching stop part may be greater than a width of a bottom surface of the etching stop part. A side surface of the etching stop part connecting the top surface of the etching stop part to the bottom surface of the etching stop part may be inclined.
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公开(公告)号：US20160373083A1
公开(公告)日：2016-12-22
申请号：US15184230
申请日：2016-06-16
发明人： Tae Kyung LEE , Sung HAN , Hwa Sun LEE , Seung Joo SHIN , Ran Hee SHIN
CPC分类号： H03H9/13 , H03H9/02149 , H03H9/173 , H03H9/54
摘要： A bulk acoustic wave resonator includes a substrate, a first electrode and a second electrode disposed on the substrate, and a piezoelectric layer disposed between the first electrode and the second electrode. At least one of the first electrode and the second electrode includes an alloy of molybdenum and tantalum.
摘要翻译： 体声波谐振器包括基板，设置在基板上的第一电极和第二电极以及设置在第一电极和第二电极之间的压电层。 第一电极和第二电极中的至少一个包括钼和钽的合金。
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公开(公告)号：US20150029414A1
公开(公告)日：2015-01-29
申请号：US14196245
申请日：2014-03-04
发明人： Kang Heon HUR , Dae Ho KIM , Tae Kyung LEE , Kyu Sang LEE
IPC分类号： G06F3/041
CPC分类号： G06F3/041
摘要： Disclosed herein is a touch sensor including a window substrate, a bezel layer formed on an edge part of the window substrate, a reflective layer formed on the bezel layer, and electrode patterns formed in the bezel layer of the window substrate, wherein the bezel layer is formed of a transparent material. Thus, due to the formation of the bezel layer and the reflective layer of the touch sensor, bezel colors are effectively realized using a more thinned film bezel.
摘要翻译： 本文公开了一种触摸传感器，其包括窗基板，形成在窗基板的边缘部分上的边框层，形成在边框层上的反射层以及形成在窗基板的边框层中的电极图案，其中， 由透明材料形成。 因此，由于边框层和触摸传感器的反射层的形成，使用更薄的薄膜边框有效地实现了表圈的颜色。
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公开(公告)号：US20140320568A1
公开(公告)日：2014-10-30
申请号：US13930480
申请日：2013-06-28
发明人： Tae Kyung LEE , Byung Hun KIM , Hwa Sun LEE
IPC分类号： B41J2/14
CPC分类号： B41J2/14233 , B41J2/161 , B41J2/1623 , B41J2/1626 , B41J2/1631 , B41J2002/14419 , B41J2002/14491 , B41J2202/18
摘要： There is provided an inkjet print head including a substrate member including an ink channel, a piezoelectric actuator formed on the substrate member, and a coating member formed on the piezoelectric actuator and including a photosensitive material.
摘要翻译： 提供了一种喷墨打印头，其包括具有油墨通道的基板构件，形成在基板构件上的压电致动器以及形成在压电致动器上并包括感光材料的涂覆构件。
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