Samsung Electro-mechanics Co., Ltd.

Jeong Hoon Ryou

Seung Mo Lim

No Il Park

Dong Sik Yoo

Byeong Cheol Moon

Hyun Ho Shin

Tae Jun Choi

Tai Yon Cho

Doo Ho Park

Sang Uk Son

Won Jae Han

Sang Heon Han

In Young Kang

Sung Wook Kim

Chang Soo Jang

Seung Hun Han

Dae Hun Jeong

Woong Do Jung

Yun Hee Kim

Jong Woon Kim

Tae Joon Park

Kyo Yeol Lee

Il Ro Lee

Seung Hee Oh

Young Kyu Park

Jae Goon Aum

Jong Suk Han

Dong Hoe Kim

Hyun Min Hwang

A bulk acoustic resonator filter includes a series part including at least one series acoustic resonator electrically connected between a first and second radio frequency ports; and shunt acoustic resonators electrically connected to each other in series between a first node of the series part and a first ground port, wherein each of the shunt acoustic resonators comprises a resonance portion including a first electrode, a piezoelectric layer, and a second electrode; and an overlap region in which the first electrode, the piezoelectric layer, and the second electrode overlap, the overlap region has an aspect ratio equal to a ratio between a longest length of the overlap region in an extension direction of a longest side of the overlap region and a longest length of the overlap region in a direction perpendicular to the extension direction, and the aspect ratios of the shunt acoustic resonators include different aspect ratios.

Bulk acoustic resonator filter and bulk acoustic resonator package

A coil component includes a body having one surface and another surface opposing each other, opposing end surfaces each connecting the one surface and the other surface to each other, and opposing side surfaces each connecting the end surfaces to each other. An internal insulating layer is embedded in the body, and a coil portion is disposed on at least one surface of the internal insulating layer and includes the first and second lead-out portions. The body has a recess disposed in each end surface of the body to expose the first and second lead-out portions. First and second external electrodes each include a connection portion disposed in the recess to be connected to a respective one of the first and second lead-out portions, and each include a pad portion disposed on the one surface of the body. A filling portion fills the recess and covers the connection portion.

Coil component

A bulk acoustic resonator includes a first electrode disposed on an upper side of a substrate, a piezoelectric layer disposed on an upper surface of the first electrode, and a second electrode disposed on an upper surface of the piezoelectric layer, wherein an upper surface of at least one of the first electrode and the second electrode has a recess region, wherein a depth of the recess region is D, a width of the recess region is W, and a resonance frequency is F, and ln is a natural logarithm, and wherein [{ln(D*W)}/(−0.59*F)] is [[ln{0.008 (μm)}]/{−0.59*(3.5 GHz)}] or more and [[ln{0.022 (μm)}]/{−0.59*(3.5 GHz)}] or less.

Bulk acoustic resonator

A coil electronic component includes a body having one surface and the other surface, opposing each other, and a plurality of wall surfaces respectively connecting the one surface and the other surface of the body, first and second recesses, respectively formed in both end surfaces of the body opposing each other among the plurality of wall surfaces of the body, extending to the one surface of the body, a wound coil, embedded in the body, including first and second lead-out portions, a first external electrode disposed along an internal wall of the first recess and the one surface of the body and connected to the first lead-out portion, and a second external electrode disposed along an internal wall of the second recess and the one surface of the body and connected to the first lead-out portion. The first and second external electrodes are spaced apart from each other.

Coil electronic component

A bulk-acoustic wave resonator includes: a substrate; a lower electrode disposed on the substrate; a piezoelectric layer at least partially covering the lower electrode; and an upper electrode at least partially covering the piezoelectric layer. On a surface of the bulk-acoustic wave resonator, a centroid of an active area in which the lower electrode, the piezoelectric layer, and the upper electrode all overlap each other is aligned with a center of a rectangle defining an aspect ratio of the active area. The active area has a shape of a polygon symmetrical with respect to at least one axis passing through the center of the rectangle defining the aspect ratio. The aspect ratio is greater than or equal to 2 and less than or equal to 10.

Bulk-acoustic wave resonator

A coil component includes a body having one surface and the other surface and a plurality of wall surfaces, first and second insulating substrates spaced apart from each other, first and second recesses disposed in both end surfaces of the body and extending to one surface of the body, first and second coil portions disposed on the first and second insulating substrates, one ends and the other ends of the first and second coil portions being exposed to the first and second recesses, first and second external electrodes disposed along an inner surface of the first recess and one surface of the body and connected to one ends of the first and second coil portions, and third and fourth external electrodes disposed along an inner surface of the second recess and one surface of the body and connected to the other ends of the first and second coil portions.

A bulk-acoustic wave resonator includes: a first electrode; a piezoelectric layer at least partially disposed on an upper portion of the first electrode; and a second electrode disposed to cover at least a portion of the piezoelectric layer. The second electrode includes a frame disposed at an edge of an active region of the bulk-acoustic wave resonator, and the first electrode, the piezoelectric layer and the second electrode are disposed to overlap one another at the edge of the active region. The frame includes a wall disposed at the edge of the active region and a trench formed on an internal side of the wall. An internal boundary line of the trench has a concave-convex shape in a plane parallel to an upper surface of the frame.

A coil component includes a body and a coil portion disposed in the body and including first and second lead-out portions. Recesses are disposed along edges of one surface of the body, and expose the first and second lead-out portions to internal walls and lower surfaces of the recesses. First and second external electrodes are disposed in the recesses, and are connected to the first and second lead-out portions. A third external electrode is disposed in the recesses, and is connected to a connection electrode disposed on side surfaces of the body and on another surface of the body opposite to the one surface. An external insulating layer covers the connection electrode, and has an opening exposing at least a portion of the connection electrode. A shielding layers is disposed on the external insulating layer and in the opening and connects to the connection electrode.

A capacitor includes a structure including a plurality of openings penetrating from a first surface of the structure to a second surface opposing the first surface; a capacitor layer disposed on the second surface of the structure and in the plurality of the openings and including a dielectric layer, and a first electrode and a second electrode, the dielectric layer interposed between the first electrode and the second electrode; a first connection layer disposed on the first surface of the structure and connected to the first electrode; a second connection layer disposed on the capacitor layer on the second surface and connected to the second electrode of the structure; and first and second terminals disposed on opposite side surfaces of the structure and connected to the first connection layer and the second connection layer, respectively.

Capacitor and method of manufacturing the same

A capacitor component includes a porous body, a first electrode layer covering surfaces of pores of the porous body, a dielectric layer covering the first electrode layer, and a second electrode layer filling the pores of the porous body and covering the dielectric layer.

Capacitor component

Provided is a capacitor including a substrate including first and second trenches spaced apart from each other, a first electrode disposed in the first trench and one surface of the substrate, a second electrode disposed in the second trench and on the one surface of the substrate and spaced apart from the first electrode, first and second pad electrodes arranged on the first and second electrodes, respectively, and a passivation layer disposed on the first and second pad electrodes and having openings partially exposing the first and second pad electrodes, respectively.

A capacitor includes a support member included in a body, a plurality of pillars disposed in an upper portion of the support member and each having a lower portion wider than an upper portion, and a capacitor layer disposed on a side surface and an upper surface of each pillar and including a dielectric layer and first and second electrodes alternately disposed with the dielectric layer interposed therebetween. Lower end portions of adjacent pillars are in contact with each other.

Capacitor and board having the same

A capacitor includes a body including a substrate and a capacitance layer disposed on the substrate. The substrate includes a plurality of first trenches penetrating from one surface of the substrate to an interior of the substrate, and a first capacitor layer disposed on the one surface of the substrate and in the first trenches. The first capacitor layer includes a first dielectric layer and first and second electrodes disposed on opposing sides thereof. The capacitance layer includes a plurality of second trenches penetrating from one surface of the capacitance layer to an interior of the capacitance layer, and a second capacitor layer disposed on the one surface of the capacitance layer and in the second trenches. The second capacitor layer includes a second dielectric layer and third and fourth electrodes disposed on opposing sides thereof. A method of manufacturing the capacitor is also provided.

A capacitor includes a plurality of cells each including a capacitance formation portion in which a plurality of trenches are positioned and a margin portion disposed around the capacitance formation portion. The cell includes three or more dielectric layers disposed in the capacitance formation portion and extending in the trenches, and three or more electrode layers sequentially stacked with dielectric layers interposed therebetween and extending in the trenches. At least first and second electrode layers have opposite polarities and each include a lead electrode extending from the capacitance formation portion to the margin portion. A lead electrode of the first electrode layer is disposed in a first region disposed to one side of a central portion of a cell, and a lead electrode of the second electrode layer is disposed in a second region disposed on another side of a central portion of the cell.

Growing community of inventors

Suwon-si, South Korea

Jeong Hoon Ryou