公开(公告)号：US10305446B2

公开(公告)日：2019-05-28

申请号：US15179248

申请日：2016-06-10

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Jae Sang Lee ,  Ho Phil Jung ,  Sung Wook Kim ,  Tae Joon Park ,  In Young Kang ,  Dong Joon Oh ,  Je Hong Kyoung ,  Kyo Yeol Lee ,  Jong Pil Lee ,  Seung Mo Lim

IPC: H03H9/02 ,  H03H9/19 ,  H03H3/02

Abstract: A piezoelectric oscillator, and method of making the same, includes an oscillation substrate comprising an oscillating part and a surrounding part, wherein the surrounding part is thinner than the oscillating part, and oscillating electrodes disposed on an upper surface and a lower surface of the oscillating part. The oscillation substrate is configured according to H=400.59×S+1.75±1.5, wherein H=100×(T2/T1) and S=T2/(L1−L2), wherein L1 represents an entire length of the oscillation substrate, L2 represents a length of the oscillating part, T1 represents a thickness of the oscillating part, and T2 represents a step height between the oscillating part and the surrounding part.

公开(公告)号：US10062516B2

公开(公告)日：2018-08-28

申请号：US15634327

申请日：2017-06-27

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Yun Sung Kang ,  Hai Joon Lee ,  Tae Joon Park ,  Dong Joon Oh ,  Yun Hee Kim ,  Kyo Yeol Lee ,  Seung Mo Lim ,  In Young Kang

IPC: H01G4/33 ,  H01G4/12 ,  H01G4/005

CPC classification number: H01G4/33 ,  H01G4/005 ,  H01G4/1227 ,  H01G4/228 ,  H01G4/236

Abstract: A thin-film ceramic capacitor includes: a body in which a plurality of dielectric layers and first and second electrode layers are alternately disposed on a substrate; and first and second electrode pads disposed on an external surface of the body. The dielectric layer contains a mixed phase of a perovskite phase having ferroelectric properties and a pyrochlore phase having paraelectric properties, the pyrochlore phase being disposed on interfaces between the dielectric layers and the first and second electrode layers in lower portions of the dielectric layers.

公开(公告)号：US09705065B2

公开(公告)日：2017-07-11

申请号：US14169915

申请日：2014-01-31

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Tae Kyung Lee ,  Byung Hun Kim ,  Hwa Sun Lee ,  Jae Chang Lee ,  Seung Mo Lim

IPC: H01L41/04 ,  H01L41/047 ,  H01L41/09

CPC classification number: H01L41/0471 ,  H01L41/0973

Abstract: There is provided a piezoelectric actuator including: a piezoelectric member having a multilayer structure; an external electrode formed on an outer surface of the piezoelectric member; and an intermediate electrode formed between layers of the piezoelectric members and having an area smaller than that of the external electrode.